ferro-alloy specialty steelimg.tradekey.com/images/uploadedimages/brochures/5/... · we provide...

深圳市联合通达商贸有限公司UNI-WAY RESOURCE CO., LTD

Ferro-Alloy

Specialty Steel

WIDE RANGE SUPPLY:

From black material to semi-finished product.

From wire rod to super steel block.…

TOOL STEEL EXPRESS:

Delivery tool steel from joint stock system quickly.

Small special order supply by flexible supply chain.

TOOL VALUE ADDED SERVICE:

Combine metal surface strengthen technology and

mold forming and analog simulation method, provide

intergraded solution for acquiring high cost performance.

Ferro-alloy /

We are the major supplier of high carbon Ferro-Chrome in China, mainly supply to our cooperative specialty steel suppliers.

Our main Business

We’ve set up reliable supply chain in all over China through cooperation with major specialty steel producers, from

Ferroalloy supply to finished product marketing. Rely on our own production controlling net work, it enable us to supply

high quality specialty steel in a wide range.

Specialty steel /

Melting with heart.

Forging with passion.

TOOL STEEL is our most competitve products; we have set completed control and service system, under the name brand of:

WIDE RANGE SUPPLY:

From black material to semi-finished product.

From wire rod to super steel block.…

TOOL STEEL EXPRESS:

Delivery tool steel from joint stock system quickly.

Small special order supply by flexible supply chain.

TOOL VALUE ADDED SERVICE:

Combine metal surface strengthen technology and

mold forming and analog simulation method, provide

intergraded solution for acquiring high cost performance.

Ferro-alloy /

We are the major supplier of high carbon Ferro-Chrome in China, mainly supply to our cooperative specialty steel suppliers.

Our main Business

We’ve set up reliable supply chain in all over China through cooperation with major specialty steel producers, from

Ferroalloy supply to finished product marketing. Rely on our own production controlling net work, it enable us to supply

high quality specialty steel in a wide range.

Specialty steel /

Melting with heart.

Forging with passion.

TOOL STEEL is our most competitve products; we have set completed control and service system, under the name brand of:

3

4

HOT

WORK

STEEL

PLASTIC

MOULD

STEEL

HIGH

SPEED

STEEL

COLD

WORK

STEEL

Item China GB Germany W.Nbr U.S.A. AISI Japan JIS

Cr12 1.2080 D3 SKD1

9CrWMn 1.2510 O1 SKS3

Cr12Mo1V SKD11

Cr12Mo1V1 1.2379 D2

Cr8Mo2SiV Similar to DC53

O2

Cr5Mo1V 1.2363 A2 SKD12

A8

Cr12W 1.2436

Cr12MoV 1.2601

5Cr3Mn1SiMo1V - S7 -

4Cr5MoSiV1 1.2344 H13 SKD61

5CrNiMoV 1.2714 L6 SKD4

4Cr5MoSiV 1.2343 H11 SKD6

4Cr3Mo3SiV 1.2365 H10 SKD7

1.2606 H12 SKD62

4Cr13 1.2083 420 SUS420

3Cr16NiS 1.2085

3Cr2Mo 1.2311 P20

3Cr17NiMo 1.2316 422

3Cr2MnNiMo 1.2738 P20+Ni

10Ni3MnCuAl P21 Similar to NAK80

W6Mo5Cr4V2 1.3343 M2 SKH51

W2Mo9Cr4V2 1.3348 M7 SKH58

W2Mo9Cr4VCo8 1.3247 M42 SKH59

W18Cr4V HS18-0-1 T1 SKH2

T42

0 100 200 305 400 500 610 700 800 900 1000 1100 1200 1300 1400120

80604020

355

1000

900

800

700

600

500

400

300

200

100

典型钢种

Typical Steel Grade

Forged Bar Size Range

Plastic Mould Steel

Cold / Hot Work

Cold / Hot Work / Plastic

5

产品规格图

Product Size Range

Rolled Flat Bar Size Range

0 50 100 150 200 250 305 350 400 450 500 550 600

100908070605040302010

Non Cold Work

610

6.5

22

Tool Steel Round Bar Size Range

B/G B/T/G

EAF/ESR/VP-ESR EAF/ESR

B/T

0 8 60 730 750 mm

Forged Bar

Rolled Bar

Cold work steelHot work steel

150 420

Wire rod

Cold draw wire

High Speed Steel Round Bar Size Range

B/G/PG B/P/G B/P/T

0.5 84 18 50 75 150 200 mm

Forged Bar

Round Bar

30

Cold Draw/Hot Rolled Coil

Round Bar

Other Alloy Steel Round Bar Size Range

B/Pk B/P/G B/T

5 8 130 1500 mm

Round Bar

20

B: Black Pk: Pickling P: Peeled G: Ground PG: Precision Ground T : Turned

6

特色服务

JOINT STOCK QUICK DELIVERY / 库存品牌特钢供应

Help you fi nd and obtain the genuine of tool steel quickly with right price!

SMALL SPECIAL ORDER QUICK MANUFACTURING / 特殊小订单快速制造

Cooperate with Zhongye, Dongbei, Great wall, etc, famous tool steel producers & their major distributors in South China, we set up the biggest joint stock & order system which present by web: toolupway.com, supply you stock product with the right price in time.

通过跟国内知名特钢生产企业（如武汉重冶，东北特钢，长城

特钢等）以及他们在华南的主要分销商合作，我们建立了中国

最大的联合库存系统，可向客户快速的提供小批量、精加工的

品牌模具钢。(www.toolupway.com)

TOOL STEEL EXPRESS / 特钢速递

7

Featured Service

7

Besides supplying qualified tool steel, taking take advantage of surface st rengthen technologies and forming analog simulation technologies into consideration for the steel & design optimization of tools, we provide integrated solution and services to customers for acquiring higher “cost performance”, improving competitive forces.

同威模具增值服务

伴随着三十多年的成长，中国模具制造虽然取得长足的

进步，但是随着产业竞争的加剧和国际经济形势的变化，企业

生存压力与日俱增，对模具的经济性能和先进技术需求越来越

迫切。而模具经济性能的提升涉及到材料的正确选择、性能改

善、热处理、表面处理、设计、应用技术和操作技能的提升等

多个方面，是一个系统工程。简单的手段叠加只能取得有限的

效果，同时可能带来成本的上升。只有通过个案分析，综合

运用多种技术手段进行整体解决方案的设计才能达到提高经济

性能的目的，在提高或保持产品质量的同时有效地降低单位成

本，从而强化企业的竞争力。这就是推出同威模具增值服务的

目的。

TOOL VALUE ADDED SERVICE / 模具增值服务

1 + 1 + 1 >> 3 !

TOOL SURFACE TREATMENT / 表面处理

★ TD Processing--- Support by: High Shine

TD处理--- 支持单位:和胜

★ Laser hardening--- Support by HGLASER

激光硬化--- 支持单位：华工激光

★ PVD Coating--- Support by Grandia Nao

PVD涂层--- 支持单位：广大纳米

Metal cold forming analog simulation金属材料冷成形仿真

Plastic injection mould fl ow analog simulation塑料注塑模具成形仿真

STEEL GRADE OPTIMIZATION / 钢种优化

Support by: Tool Steel Study Center Of Cisri & Nercast支持单位：CISRI&NERCAST / 特钢研究中心

7

8

特色服务

TD APPLICATIONS

WHAT'S TD?

Thermal Diffusion - Grow out a very thin Vanadium Carbide fi lm with extremely high hardness on the surface of cold work tool through during V - rich salt bath hardening process.

The hardness of such fi lm can reach 3200-3800Hv. Instead of adhering to the surface of metal, it is grown out from the metal, generate extremely high wear resistance and extremely low adhesivequality.

What happened after TD?

It extends the tool service life greatly (more than 10 times in some cases), with better product quality.

Performance gets greatly promoted!

Application Examples:

Auto part stamping die Original state Improved

Grade SKD11 SKD11

Hardness 60HRC 59HRC

Surface Treatment CVD TD

Service life ≈6000 shot 35000 shot

Failure cause pulled reusing

Client: WPart: concave mold, convexmold, blank pressing moldMaterail: SEPC440Thickness: T=6.0MM


Grade SKD11 SKD11


Surface Treatment TD

Service life Only hundred shot 70000 shot


Client: APart: concave mold,Materail: SEPC 270Thickness: T=2.2MM


Grade SKD11 SKD11


Surface Treatment TD

Service life ≈70 shot 5000000 shot


Client: MPart: concave mold,Materail: SUS 304Thickness: T=0.8MM

TD应用

什么是TD?

热扩散—将工件置于硼砂熔盐混合物中，通过高温扩

散作用于工件表面形成一层数微米至十微米的硬度极高的金属碳化物覆层。

覆层的硬度高达3200—3800Hv。TD并不是在金属表面

附着，而是让它从金属里“长”出来。形成了极高的耐磨性及很低的附着性。

TD后会产生什么效果？

会大大提高工件的使用寿命（有些甚至大于10倍），

而且得到更好的产品质量。

性能大大的提升。

应用案例：

汽车部品冲压模应用前应用后

钢种 SKD11 SKD11

硬度 60HRC 59 HRC

表面处理 CVD TD

寿命 ≈6000次 35000次

失效原因拉伤继续使用

客户：W公司部品：凹模、凸模、压边模被加工材：SPEC440料厚：T=6.0MM


钢种 SKD11 SKD11

硬度 60HRC 59 HRC

表面处理 TD

寿命几百次 70000次


客户：A公司部品：凹模被加工材：SPEC270料厚：T=2.2MM


钢种 SKD11 SKD11

硬度 60 HRC 58 HRC

表面处理 TD

寿命 ≈70次 5000000 次


客户：M公司部品：凹模被加工材：SUS 304料厚：T=0.8MM

9

Featured Service

LASER SURFACE HARDENING

BEST WAY TO COMBINE HARDNESS & TOUGHNESS

3-D SURFACE, COMPLEX SHAPE HARDENING 3-5 HRC HIGHER THAN TRADITIONAL HARDENING DEEPER HARDENED ZONE EXCELLENT FATIGUE STRENGTH ZERO DEFORMATION

指利用物理过程实现物质转移，将原子或分子由源转移到基材表面上的过程。它的作用是可以使某些有特殊性能（强度高、耐磨性、散热性、耐腐性等）的微粒喷涂在性能较低的母体上，使得母体具有更好的性能！ PVD基本方法：真空蒸发、溅射、离子镀（空心阴极离子镀、热阴极离子镀、电弧离子镀、活性反应离子镀、射频离子镀、直流放电离子镀）。

ABS08-II型PVD 设备即八阵弧线磁控溅射复合膜生长系统是具有国际先进水平的等离子体物理气相沉积设备，集合了本公司与香港城市大学和德国慕尼黑大学的科研人员多年合作成果，将电弧离子镀技术合二为一，可沉积25层的纳米复合膜，而且每层具有不同的工艺参数。ABS08-II Mold PVD---- Sate of the art coating equipment.

激光表面硬化

结合硬度及韧性的最佳方法

3-D表面，复杂形状硬化

比传统硬化高出3-5HRC

更深的硬化层

优秀的疲劳强度

零变形率

PVD COATING(Physical Vapor Deposition) / PVD涂层

Service, Technology & Equipment supply

0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8

Traditional paintSpecial paint

Distance from the surface

750

700

650

600

550

500

450

400

350

300

250

200

HV

S

4 5 6 7 8 9 10

Scanning velocity (mm s-1)

Traditional paintSpecial paint

Dee

pth

of h

ardn

ess

zone

(mm

) 1.8

1.6

1.4

1.2

1.0

0.8

0.6

~

~

~

~

~

~

~

~

~

~

服务，技术以及设备供应

10

特色产品

Steel Grade: Cold Work Steel Plastic Mould Steel

Supply size range and tolerance: Refer to flat bar size range (page 5)

Standard length 1030 mm 1030 Flat bar tolerances: Thickness +0.25/-0 mm,

Width +0.4/-0 mm, Length +10 mm

Square bar tolerances for cross section +0.25 mm

Other Standard

Europe

Standard Tolerance

Thickness +0.25/-0.00mm Width +.040/-0.00mm Length +10/-0.00mm) Squareness 3mm/m

U.S.AStandard Tolerance

Thickness +/-.001"(0.02mm) Width +.005/-.000"(+0.12/-0.00mm) Length +.250/.500"(+6.35/+12.7mm) Squareness .003" per inch(3mm/m)

Oversize Tolerance

+.010/.015" (0.25/0.38mm)+.010/.015" (0.25/0.38mm)

+.250/.500" (+6.5/12.5).003" per inch( 3mm/m)

Production process

Melting :EAF+LF+VD (50MT,100MT)

Forging: 800MT, 2000MT,3100MT,5000MT,8000MT

Quenching & Tempering

Machining

Main steel grade

1.2738

1.2311

1.2714

1.2083

1.1730

Product feature

Homogeneous microstructure and uniformed hardness (difference within 2HRC in cross section)

High level microcleanliness and fined-grain microstructure

Size range

Max. Width 1400mm Max. Thickness 1000mm Refer to forged bar size range (page 4)

大模块/光坯 Die Block / Blank Mould

Precision Ground Flat 精磨扁钢

11

Featured Product

Technology specialty:

Picking up Clean Raw Material ESR(VP-ESR)Refining High Temperature Diffusion and Super Refining Heat

Treatment Special multidirectional forging

Product Feature:

Extra-High Level of Microcleanliness Quality accord with standard (NADCA) #207 Excellent Toughness and Ductility High Isotropy Outstanding impact toughness and resistance to

thermal fatigue cracking

Annealed Microstructure 500×

Comparison of 7X10X55 Unnotched Impact after Quenching and Tempering

Super Hot Work Steel 4Cr5MoSiV1(NADCA)

Comparison of thermal fatigue cracks after 3000 times cycling test between 20-700 ℃

工艺特性：

精选原料

电渣重熔精炼 (真空氩气保护)

高温均质化处理和超细化热处理

特殊的多向锻造工艺

产品特点：

超高纯净度

产品质量符合北美压铸协会（NADCA）＃207标准

优异的韧性和延展性

高等向性

杰出的抗冲击韧性和耐热疲劳开裂性能

Excellent mirror polishability 3Cr17NiMo

(UPGRADE FROM W.Nr. 1.2316 AND AISI 422)

Product features / 产品特点

Strong corrosion resistance (better than S-136 and 1.2316) Excellent mirror surface polishability. Easy to do heat treatment, size is stable after Q+T pre-hardened. Good thermal fatigue cracking resistance. Good abrasion resistance and toughness, (better than S-136 and 1.2316) easy to weld up.

Dimension (mm) / 供货规格圆钢 Bar 模块Block

φ140-φ500 厚度(Thickness)：80-300×宽度(Width)：300-700

ESR NADACA电渣(ESR)

300

250

200

150

100

50

0

超级热作钢

超级镜面钢

12

钢种信息

COLD WORK STEEL Cr12

Cr12 is a high-carbon, high-chromium, oil-hardening tool steel that is characterized by a relatively high attainable hardness and numerous, large, chromium-rich alloy carbides in the microstructure. These carbides provide good resistance to wear from sliding contact with other metals and abrasive materials.

CHEMICAL COMPOSITION (%) C 2.00-2.30 Si ≤0.40 Mn ≤ 0.40 Cr 11.50-13.00 Co ≤ 1.00 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADE GB(CHINA) Cr12 W.Nr.(GERMANY) 1.2510 AISI(USA) D3 JIS(JAPAN) SK D1 BS(ENGLAND) BD3

PRODUCT FEATURES

High Strength and Hardness Good hardenability and well abrasive resistance Excellent stability in heat treatment

APPLICATION

Typical applications for Cr12 tool steel include forming rolls, drawing dies, forming, powder compaction tooling, and lamination dies.

DELIVERY CONDITION

Annealed, Hardness 217HB~269HB or according to requirement

PHYSICAL PROPERTIES

Density: 7870 kg/m3

Modulus of Elasticity: 30x106 psi (207 GPa) Coefficient of Thermal Expansion

Temperature /℃ 38-260 38-427 38-538 38-649 38-816

mm/mm℃x10-6m 11.84 12.87 13.81 13.57 13.90 Critical temperature

Temperature(approx.) /℃ 810 835 755 770 180 Critical point Ac1 Acm Ar1 Arcm Ms

HOT WORKING

Standard hot working of Cr12

Item Hot working temperature/℃ Begin forging temperature/℃ Finish forging temperature/℃ Cooling

Ingot 1140-1160 1100-1120 900-920 Slow cooling

billet 1120-1140 1080-1100 880-920 Slow cooling

HEAT TREATMENT

Preheating

Annealing Process After Forging Annealing Process At a Holding Temperature After Forging (Metallographic Structure: Granular Pearlite + Alloy Carbides)

Quenching

Cr12 Recommended Quenching

Quenching Temperature./℃ Cooling medium Hardness (HRC)

950-980 Oil 59-63

wwf

附注

1.2080

13

Data sheet

COLD WORK STEEL Cr12

Hardness, Austenitic Grain Size

and Quenching Temperature

Time temperature transformation curve (TTT)[Composition (%) 2.0C, 12.4Cr,0.50Si,0.40Mn; Austenitizing temperature 970℃]

TemperingRecommended Tempering

Application Heat treatment/℃ Temper Time/h Tempering Times Hardness (HRC)

Stress relief and stable microstructure

Stress relief anddecrease hardness

180-200 2 1 60-62

320-350 2 1 57-58

TYPICAL MECHANICAL PROPERTY

Physical Properties(Oil quenching at 960- Hardness and tempering temperature relative curve

980 ℃, holding for 1.5h in different temperature) (Quenching Tempering: 1-955℃ 2-1010℃ 3-1090℃)

14

钢种信息

COLD WORK STEEL 9CrWMn

9CrWMn is a low alloy oil-hardening cold work steel. It's possible to reach higher hardness(65HRC) from low austenitizing temperature with little size change. 9CrWMn is a general-purpose tool steel that is typically used in applications where alloy steels cannot provide sufficient hardness, strength, and wear resistance.

CHEMICAL COMPOSITION (%)C 0.85-0.95 Si ≤0.40 Mn ≤ 0.90-1.20 Cr 0.50-0.80 W 0.50-0.80 V ≤ 0.030 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADE GB(CHINA) 9CrWMn W.Nr.(GERMANY) 1.2510 AISI(USA) O1 JIS(JAPAN) SKS3 BS(ENGLAND) BO1

PRODUCT FEATURES

Stable performance of heat treatment, less deformation Good machinability High abrasion resistance

APPLICATION

It’s normally used for cold-punching mould with small section &complicated shape, also different gauges and measures.

DELIVERY CONDITION

Annealed, Hardness HB≤235 or according to client requirement

PHYSICAL PROPERTIES

Density (kg/m3) : 7850 Modulus of Elasticity (GPa): 214 Thermal Conductivity (W/m·K) : 34.5 Coefficient of Thermal Expansion

Temperature /℃ 20-205 20-425 20-540

coefficient of linear expansion /℃-1,×10-6 12.6 13.3 14.0

Critical temperature

Critical point Ac1 Acm Ar1 Ms

Temperature(approx.)/℃ 750 900 700 205

HOT WORKING

Standard hot working of 9CrWMn Item Hot working temperature/℃ Start forging temperature/℃ Finish forging temperature/℃ Cooling

Ingot 1150-1200 1100-1500 ≥ 850 Slow cooling

billet 1100-1150 1050-1100 ≥ 850 Slow cooling

HEAT TREATMENT

Pre-heat treatment

Isothermal annealing after forging

15

Data sheet

COLD WORK STEEL 9CrWMn

QuenchingRecommended quenching standard

Preheat temperature/℃ Preheat temperature /℃ Medium Medium temperature /℃ Cooling to (HRC)

650 820-840 Oil 20-60 oil temperature 64-66

A1

A

A1

A

Hardenability curve Time temperature transformation curve (TTT) [Composition (%): 0.93C,1.12Mn,0.66Cr,

(Austenitizing temperature 810) 0.72W;830℃ heating and end quenching]

TemperingRecommended tempering standard

Heat temperature/℃ Heating medium Cooling medium Hardness (HRC)

160-180 Oil Air ≥61

170-230 Oil Air 60-62

230-275 Oil or lye Air 56-60

Tempering hardness transformation curve(840℃ oil quenching, tempering heat preservation 90min)

RECOMMENDED SURFACE TREATMENT

9CrWMn (AISI O1) can be given standard surface treatments such as hard chrome plating if desired. Nitriding is not generally practical due to a substantial loss of core hardness.

16

钢种信息

COLD WORK STEEL Cr12Mo1V

Cr12Mo1V is a high-chromium, high-carbon Ledeburite Steel with high hardenability, good wear resistance and small

size changing when quenching. It is a widely used for cold work die steel with carbide homogeneous distribution and

better toughness compared to Cr12.

CHEMICAL COMPOSITION (%)C 1.40-1.60 Si ≤0.40 Mn ≤ 0.60 Cr 11.00-13.00 Mo 0.80-1.20 V 0.20-0.50 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADE GB(CHINA) Cr12Mo1V W.Nr.(GERMANY) 1.2601 JIS(JAPAN) SK D11

PRODUCT FEATURES

Lower V compare with Cr12Mo1V1(D2), still have good combination of hardness and toughness especially after TD coating.

APPLICATION

High precision, long life cold work dies, like dies for trimming, punching, forming and blanking, mould insert, thread rolls, forming rolls, shear knives, gages, injection screw components, etc.

DELIVERY CONDITION

Annealed, Hardness≤255 HB or according to requirements

PHYSICAL PROPERTIES

Density: 7860 kg/m3

Modulus of Elasticity: 207 (GPa) Resistivity (Ω·m): 0.31×10-6

Thermal conductivity Temperature /℃ 350 700

Thermal conductivity (W/m·K) 20.5 24.2

Coefficient of Thermal Expansion Temperature/℃ 20-100 20-400 20-600

linear Expansion Coefficient /℃-1,×10-6 10.9 11.4 12.2

Critical temperature Critical point Ac1 Acm Ar1 Ms

Temperature(approx.)/℃ 830 855 750 235

HOT WORKING

Heat treatment Process: Item Heating Temp./℃ Cooling Hardness

Annealing 850~880 ≤30℃/h cooling to 500℃ ≤255HB

Quenching ii): 1050~1130 Oil 42~50HRC

Quenching i): 1020~1040 Oil or Air 60~63HRC

Tempering i): 200~300 (twice) Air 57~60HRC

Tempering ii): 510~540 (twice) Air 58~62HRC

17

Data sheet

COLD WORK STEEL Cr12Mo1V

Quenching and Tempering Curve

Hardness relation to quenching temperature Relation between quenching in different heating & cooling condition temperature, hardness and retained austenite 1-heating in carburant, cooling in oil; 2-heating in air, cooling in oil;

3-heating in air, cooling in air


SKD11 relation between mechanical properties Relation between Length variation andand tempering temperature (1000℃ austenitizing, oil cooling) tempering temperature (quenching temperature 1050℃)


Cr12Mo1V is the best cold work steel which suitable for TD treatment. TD’s basic principle is putting the parts in a borax bath, formed a coating of V, Nb, Cr, Ti carbide. The coating has an extreme high hardness with great wear resistance and corrosion resistance which can highly improve the die use life. TD treatment process stability, coating quality steady and environmental protection, it has good use effect and value.

18

钢种信息

COLD WORK STEEL Cr12Mo1V1

Cr12Mo1V1 is a versatile, air-hardening, high-carbon, high-chromium tool steel, provides an effective combination of wear resistance and toughness, tool performance, price, and a wide variety of product forms.

CHEMICAL COMPOSITION (%)C 1.40-1.60 Si ≤ 0.60 Mn ≤ 0.60 Cr 11.00-13.00 Mo 0.70-1.20 V 0.50-1.10 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADEGB(CHINA) Cr12Mo1V1 W.Nr.(GERMANY) 1.2379 AISI(USA) D2 JIS(JAPAN) SK D11 BS(ENGLAND) BD2

PRODUCT FEATURES

High hardenability and good wear resistance Oxidation Resistance in High Temperature Work Well Corrosion Resistance after Polished &Quenched Stability in Heat treatment

APPLICATION

Applications for high precision, long life cold work dies, like dies for trimming, punching,forming and blanking,mould insert, thread rolls, forming rolls, shear knives, gages, shear knives, gages,injection screw components, etc.

DELIVERY CONDITION

Annealed, Hardness≤255 HB or according to requirements

PHYSICAL PROPERTIES

Density: 7620 kg/m3

Modulus of Elasticity (GPa) : 207 Thermal conductivity (W/m·K) : 26 Coefficient of Thermal Expansion

Temperature /℃ 20-100 20-200 20-300 20-400

linear Expansion Coefficient /℃-1,×10-6 10.5 11.5 11.9 12.2


Critical temperature Ac1 Acm Arcm Ar1 Ms

Temperature(approx.) /℃ 810 875 750 695 190

HOT WORKING

Standard hot working of Cr12Mo1V1Item Heating temperature/℃ Begin forging temperature/℃ Finish forging temperature/℃ Cooling

Ingot 1120-1160 1050-1090 ≥ 850 Hot charging annealing

billet 1120-1140 1050-1070 ≥ 850 Hot charging annealing or pit cooling, sandy cooling

HEAT TREATMENT

Preheating

Isothermal Annealing ProcessTime / h

730+/-10

850+/-10

2h4h

Tem

pera

ture

/

19

Data sheet

COLD WORK STEEL Cr12Mo1V1

QuenchingRecommended Quenching

Scheme Cooling Hardness (HRC)

1 500-600 820-860 980-1040 Oil or Air 60-65

2 500-600 820-860 1060-1100 Oil or Air 60-65

Heating temperature/℃1st Preheating 2nd Preheating Final Heating

Microstructure Relation to Austenitizing Temperature

1038 79 7 14 1066 65 22 13 1093 33 55 12 1121 5 85 10 1135 2 88 10 1149 2 88 10

Austenitizing Temperature/℃ Volume PCT/ %Martensitic Austenitic Carbide

Note: testing steel (%): 1.60C,11.95Cr,0.33Mn,0.32Si,0.79Mo,0.25V,0.018P,0.010S; Quenching after 30Min at Austenitizing Temperature.

TemperingRecommended Tempering

Scheme Tempering temperature/℃ Tempering Times Hardness (HRC)

1 180-230 1 60-64

2 510-540 2 60-64

RECOMMENDED SURFACE TREATMENTS

Normal heat treatment such as nitriding, inleakage of titanium, hard chromium plating(if). Two times tempering on or above the work temperature before heat treatment. Additionally, TD (Toyota Diffusion Coating Process or Thermal Diffusion) is a good surface treatment way for Cr12Mo1V1. Its basic principle is putting the parts in a borax bath, formed a coating of V, Nb, Cr, Ti carbide. The coating has an extreme high hardness with great wear resistance and corrosion resistance which can highly improve the die use life. TD treatment process stability, coating quality steady and environmental protection, has good use effect and value.

20

钢种信息

Cold Work Steel Cr8Mo2SiV

Cr8Mo2SiV is a new improved cold work steel based on Cr12Mo1V, provides greater combination of hardness and toughness after high temperature given by smaller chromium & molybdenum-rich carbides. It is widely used in general and precision cold working tool application.

CHEMICAL COMPOSITION (%)C 0.90-1.10 Si 0.80-1.20 Mn ≤0.40 Cr 7.50-8.50 Mo 1.80-2.00 V 0.20-0.50 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADEGB(CHINA) Cr8Mo2SiV JAPAN NAK80

PRODUCT FEATURES

High hardness and toughness Heat treated hardness higher than Cr12Mo1V, hardness can reach 62~63HRC after high temperature (520~530℃) tempering, toughness is twice than Cr12Mo1V, outstanding among cold working tool steel. Few cracking for tool & die made of Cr8Mo2SiV, extend the service life obviously.

High hardenability, machinability and abrasion resistance. Small size change during quenching, small remaining stress after liner cutting, thus restrain cracking and deformation. Machinability and abrasive property are both better than Cr12Mo1V.

APPLICATION

Precise punching die, linear cutting precise punching shear, and various uses of punching die; cold forging, deep drawing & thread rolling mold, other high speed punching shear, stainless steel nest plate etc.

DELIVERY CONDITION

Annealed, HB≤255 or according to client requirement

PHYSICAL PROPERTIES

Density (kg/m3) : 7720 Modulus of Elasticity (GPa) : 220 Specific heat (J/g.℃): 0.460 (20℃) Thermal Conductivity

Temperature /℃ 200 400

W/m.K 20 25

Coefficient of Thermal Expansion

Temperature/℃ 20-200(High tempering) 20-400(High tempering) 20-200(Low tempering)

coefficient of linear expansion /℃-1,×10-6 11.6 12.4 12.2


Critical point Ac1 Acm Ms

Temperature(approx.)/℃ 830 870 180

Heat treatment

Heat treatment:Item Heating temperature,℃ Cooling Hardness

Annealing 820~840 ≤30℃/h cooling to 500℃ tap off ≤241HB

Tempering Plan 1: 180~200 Air cooling 60~62

Quenching 1020~1040 Oil & air cooling 62~65

Tempering Plan 2: 500~550(twice) Air cooling 60~63

lenovo

附注

为改 JAPAN DC53

21

Data sheet

Cold Work Steel Cr8Mo2SiV

Quenching , tempering curve

Relation among quenched hardness, grain size and quenching temperature Relation between tempered hardness and temperature


Relation between AKV and tempering temperature (U notch)

RECOMMENDED SURFACE TREATMENTS

Cr8Mo2SiV is very suitable to apply TD process technique. TD (Toyota Diffusion Coating Process or Thermal Diffusion) basic principle is to put the steel into borax bath which added diffusion element, and then will form a carbonization coating of V, Nb, Cr, Ti on the surface. The carbonization has very high hardness, also very high abrasive resistance and good corrosion resistance, extend the service life of mould. TD processing technique has very good stability, high quality for the coating, has no pollution to environment, good use effect and high value for society and economy.

22

钢种信息

HOT WORK STEEL 5CrNiMoV

5CrNiMoV is a Ni-Cr-Mo steel characterized by high level hardenability and toughness, good resistance to repeated shocks, fairly good insensitivity to thermal shocks and good wear resistance.

CHEMICAL COMPOSITION (%)C 050-0.60 Si 0.10-0.40 Mn 0.65-0.95 Cr 1.00-1.20 Mo 0.45-0.55 V 0.07-0.12 Ni 1.50-1.80 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADE GB(CHINA) 5CrNiMoV W.Nr.(GERMANY) 1.2714 AISI(USA) L6

PRODUCT FEATURES

Oil & air quenched hot work steel, good hardenability Good toughness Good thermal resistance Good polishability Suitable for surface treatment (e.g. chrome plated)

DELIVERY CONDITION


PHYSICAL PROPERTIES

Density (kg/m3) : 7800 (20℃) Thermal Conductivity (W/m·K)

Temperature /℃ 20 350 700

(W/m·K) 36.0 38.0 35.0


Temperature /℃ 20-100 20-200 20-300 20-400 20-500

[10-6m/(m×K)] 12.5 13.1 13.4 13.9 14.0

HEAT TREATMENT

Standard heat treatment of 5CrNiMoV Item Soft Annealing Quenching Tempering

Heating temperature /℃ 650-700 830-870 300-600

Time temperature- Hardness transformation curve

(sample:Φ25mm, length 50mm;

oil quenching temperature 850℃)

Time temperature transformation curve (TTT)

APPLICATION

Forging dies of all types, hammer forging dies up to largest dimensions, tools for tube and rod extrusion such as rams, bolsters, mandrels, plungers, sleeves, die holders, backing plates, chipping beds, press dies for mould parts, deep engraving dies, containers for die casting presses, hot forming dies, bending and heavy embossing tools, hot mill rolls, hammers and pile drivers, hot punching tools, very hard cold work dies and punches, hot shear blades, blocks for dies, forging saddles, pressing spindles, shrink rings, armoured trim dies, hydro forming tools, plastic moulds, hot gripper and heading dies.

23

Data sheet

HOT WORK STEEL 4Cr5MoSiV1

4Cr5MoSiV1 is an air-cooled hardening hot work steel, also the most popular hot work steel. Comparing to traditional steel, it has better isotropy, and excellent toughness and plasticity.

CHEMICAL COMPOSITION (%)C 0.32-0.45 Si 0.80-1.20 Mn 0.20-0.50 Cr 4.75-5.50 Mo 1.10-1.75 V 0.80-1.20 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADEGB(CHINA) 4Cr5MoSiV1 W.Nr.(GERMANY) 1.2344 AISI(USA) H13 JIS(JAPAN) SKD61 BS(ENGLAND) BH13

PRODUCT FEATURES

Excellent machinability and polishability High toughness and plasticity High abrasion resistance at high and low temperature Excellent entire hardenability Good high temperature strength and heat-resisting fatigue Small deformation during heat treatment

APPLICATION

Hot extrusion mould and dies, die casting dies, forging die, forging press extrusion die, die edge for radial forging machine , die inserts, plastic moulds, core pins, ejector pins, hot upset dies.

DELIVERY CONDITION


PHYSICAL PROPERTIES

Density (kg/m3) : 7800 Modulus of Elasticity (GPa): 210 Coefficient of Linear Expansion

Temperature/℃ 20-100 20-200 20-300 20-400 20-500 20-600 20-700

coefficient of linear expansion /℃-1,×10-6 9.1 10.3 11.5 12.2 12.8 13.2 13.5


Temperature(approx.) /℃ 860 915 775 815 340 215Critical point Ac1 Ac3 Ar1 Ar3 Ms Mf

Thermal Conductivity (W/m·K)

Temperature /℃ 25 650

mm/mm℃x10-6m 32.2 28.8

HOT WORKING

Item Heating Temperature/℃ Start forging temperature /℃ Finish forging temperature /℃ Cooling

Ingot 1140-1180 1100-1150 900-850 Slow cooling(sand or pit cooling)

Billet 1120-1150 1050-1100 900-850 Slow cooling(sand or pit cooling)

HEAT TREATMENT

Pre-heat treatment

Standard annealing technology after forging Stress relief annealing technology

24

钢种信息

HOT WORK STEEL 4Cr5MoSiV1

Structure and Hardness of 4Cr5MoSiV1 before and after annealing Hardness Organization

Before ANN. dHB/mm ~2.75 HB ~500 Sorbite or martensite

After ANN. dHB/mm ≥3.9 HB ≤241 spheroidize pearlite + few cementite

QuenchingRecommended quenching standard of 4Cr5MoSiV1

Quenching temperature/℃ Hardness (HRC) Medium Medium Temperature/℃ Cooling

1020-1050 Oil or air 20-60 To room temperature 56-58

Relation between

Hardness, grain size and quenching temperature


(Chemical composition %:0.40C,1.05Si,5.0Cr,1.35Mo,1.10V;

Austenitizing temperature 1010℃)

TemperingRecommended tempering standard of 4Cr5MoSiV1

Tempering goal Heating temperature/℃ Heating equipment Cooling Hardness (HRC)

Stress relief and hardness reduce 560-580* Melting salt bath or air furnace Air 47-49

*Note: Twice tempering is normally applied, the second tempering temperature is 20℃ lower than the first.


Deformation rate of 4Cr5MoSiV1 after quenching and tempering Hardness related to quenching and tempering


Recommended surface treatment Standard of 4Cr5MoSiV1Technology Temperature/℃ Time/h Medium Diffusion layer

Cyaniding 560 2 50%KCN+50%NCN 0.04 690-640 Depth/mm Microhardness (HV)

Cyaniding 580 8 Natural gas+ammonia 0.25-0.30 860-635

Nitriding 530-550 12-20 Ammonia, α=30%~60 0.15-0.20 760-550

25

Data sheet

PLASTIC MOULD STEEL 3Cr16NiS

3Cr16NiS is a machinability improved, Q+T pre-hardening plastic mould steel, with good corrosion resistance, suitable for

acid resistable mould frame and supporting tool.

CHEMICAL COMPOSITION (%) C 0.28-0.38 Si ≤1.00 Mn ≤1.40 Cr 15.0-17.0 P ≤ 0.030 S 0.05-0.10 Ni ≤1.00

SIMILAR STEEL GRADE GB(CHINA) 3Cr16NiS W.Nr.(GERMANY) 1.2085

PRODUCT FEATURES

Good corrosion resistance, acid resistance and

polishability, better abrasive resistance after quenching Greater improvement on machinability

DELIVERY CONDITION

Annealed, HB≤230 or Q+T 280-325HB or according to client requirement

PHYSICAL PROPERTIES

Modulus of Elasticity (GPa): 212 (20℃)


Temperature/℃ 20 350 700

W/m·K 11.2 21.0 24.7


Temperature/℃ 20-100 20-200 20-300 20-400 20-500

W/m·K 11.0 11.1 11.2 11.6 12.0

HEAT TREATMENT

Standard heat treatmentItem Soft Annealing Quenching Tempering

Heating temperature /℃ 850-880 1000-1040 560-700

Tempering temperature-Hardness transformation curve

(Sample diameter 25mm, Length 50mm:

Oil quenching temperature 1010℃)

Time temperature transformation curve

APPLICATION

Applied in mould frame or insert with low requirement

on surface Applied in parts of plastic product with high requirement

on corrosivity

26

钢种信息

PLASTIC MOULD STEEL 4Cr13

4Cr13 is martensitic stainless steel which has good machinability, corrosion resistance and abrasion resistance. It’s suitable for plastic mold and crystal plastic mold, which need to bear high load, high abrasion resistance and work under aggressive medium.

CHEMICAL COMPOSITION (%)

SIMILAR STEEL GRADEGB(CHINA) 4Cr13 W.Nr.(GERMANY) 1.2083 AISI(USA) 420 JIS(JAPAN) SUS420 BS(ENGLAND) X46Cr13

PRODUCT FEATURES

Good corrosion resistance, abrasion resistance, and machinability Good performance of thermal-fatigue Stable hardenability and low rate of deformation It's attainable in high polish performance after quenching and tempering

APPLICATION

Abrasion resistible mold, including thermoset plastic extrusion mold With etching medium, like mold for PVC Long service life mold, like mold for disposable tableware and snack box Production of optical product parts, like camera and lens of sunglass Mold for medical treatment container

DELIVERY CONDITION


PHYSICAL PROPERTIES

Density (kg/m3) : 7750 Modulus of Elasticity (GPa)

Temperature/℃ 20 400 500 600

E /GPa 210-223.5 197 185 174


Temperature/℃ 20 400 500 600

W/m·K 27.6 28.8 28.8 28.4


Temperature/℃ 20-100 20-200 20-300

[10-6m/(m×K)] 10.5 11.0 11.0


Critical point AC1 AC3

Temperature(approx.) /℃ 820 1100

HOT WORKING

Standard hot working of 4Cr13 Heating Hot working temperature/℃ Finish forging temperature/℃ Cooling

Heating slowly to 800℃, then heating Ash cooling or sand cooling, quickly to hot working temperature 1160-1200 ≥850 then tempering immediately

HEAT TREATMENT

Standard heat treatment of 4Cr13

Item Annealing Quenching Tempering

Heating temperature/℃cooling 750-800 Furnace cooling 1050-1100 Oil cooling 200-300 Air cooling

C 0.36-0.450 Si ≤ 0.60 Mn ≤ 0.80 Cr 1.00-1.20 Mo 0.45-0.55 V 0.07-0.12 Ni 1.50-1.80 P ≤ 0.035 S ≤ 0.030

lenovo

附注

Cr:12%-14%

27

Data sheet

PLASTIC MOULD STEEL 4Cr13

Mechanical property at different temperature

(1050℃ air cooling, 650℃ 3h tempering)


(Composition %: 0.45C,0.32Si,0.40Mn,13.8Cr,0.12Ni; Austenitizing temperature 980℃)

TYPICAL MECHANICAL PROPERTIES

Heat treatment test temperature /℃ b /MPa b /MPa 5 / %

20 1800-1820 1630-1650 2.5400 1660-1700 1450-1480 6450 1570-1600 1350-1420 5-6500 1310-1340 1250-1290 6.520 1130-1160 970 9.2-10400 920-960 790-830 8.3-10450 800-820 620-650 10-12500 710-730 580-600 14.5-15

1030℃ air cooling; 500℃ tempering air cooling

1030℃ air cooling; 600℃ tempering air cooling

28

钢种信息

Plastic Mould Steel 3Cr2Mo

3Cr2Mo is widely used plastic mould steel in the whole world. It has good over-all mechanical property, high hardenability. It can make steel with big cross section get even harness. It has excellent polishability and high surface finish value.

CHEMICAL COMPOSITION (%) C 0.28-0.40 Si 0.20-0.80 Mn 0.60-1.00 Cr 1.40-2.00 Mo 0.30-0.55 P ≤ 0.030 S ≤ 0.030

SIMILAR STEEL GRADE

GB(CHINA) 3Cr2Mo W.Nr.(GERMANY) 1.2311 AISI(USA) P20 BS(ENGLAND) BP20

PRODUCT FEATURES

Good polishability, photoetch performance and machinability. VD refining is applied, thus with high purity. Suitable for plastic mould requires polishing and photo etching. Delivery on pre-hardening condition, heat treatment is not needed, can apply to mould machining directly, thus

shorter the working time After forging and rolling, has fine and close organization, 100% UT, no defect like gas hole and needle eye.

APPLICATION

Suitable for large & medium scale and precision mould, also Sn, Zn, Pb alloy die casting mould with low melting point.

DELIVERY CONDITION

Pre-hardening and Q+T to 30-36HRC or annealed, HB≤235 to client’s requirement

PHYSICAL PROPERTIES

Density (kg/m3) : 7810 Modulus of Elasticity (GPa): 212 (20℃) Thermal Conductivity (W/m·K)

Temperature/℃ 20 100 200 300 400

Thermal Conductivity W/m·K 36.0 33.4 31.4 30.1 29.3

Coefficient of Linear ExpansionTemperature/℃ 18-100 18-200 18-300 18-400 18-500 18-600 18-700

Coefficient of Linear Expansion/ ℃-1,×10-6 11.90 12.20 12.50 12.81 13.11 13.41 13.71

Critical Temperature

Temperature(approx.) /℃ 770 825 640 755 335 180Critical point Ac1 Ac3 Ar1 Ar3 Ms Mf

HOT WORKING

Standard hot working of 3Cr2MoItem Heating Temperature/℃ Start forging temperature /℃ Finish forging temperature /℃ Cooling

Igot 1180-1200 1130-1150 ≥850 Pit cooling

Billet 1120-1160 1070-1110 ≥850 Sand cooling or slow cooling

HEAT TREATMENT

Pre-heat treatment

High temperature tempering Isothermal tempering

Quenching

Recommended quenching standard of 3Cr2Mo: Heating temperature 850-880℃, oil cooling

29

Data sheet

Plastic Mould Steel 3Cr2Mo

Time temperature transformation curve(Sample composition %: 0.35C,0.49Si,0.81Mn,0.011P,0.018S,0.41Mo,1.75Cr; Autenitizing: 850℃,5min)

Tempering

Recommended tempering temperature: 580-640℃, air cooling

Tempering temperature on hardness and impact toughness(Sample hardness 880℃ salt bath heating10min oil cooling, Sample impact toughness 850℃ salt bath heating 10min oil cooling, chamber furnace tempering 2h)

Tempering temperature on mechanical property

(Sample heating at 850℃ salt bath heating 10min oil cooling, chamber furnace tempering 2h air cooling)


3Cr2Mo(AISI P20) may be nitrided by most commercial procedures, resulting in a surface hardness of 55-65 HRC. P20 may also be carburized, resulting in a case hardness of 53/57 HRC.

30

钢种信息

Plastic Mould Steel 3Cr2MnNiMo

3Cr2MnNiMo is a pre-hardening plastic mould steel, an advanced version of P20, add 0.85-1.15% Ni on the basic of P20; make it higher permeability, obdurability, corrosion resistance and polishability. High cost performance, is the first choice for producing high class plastic mould.

CHEMICAL COMPOSITION (%) C 0.32-0.40 Si 0.20-0.40 Mn 1.10-1.50 Cr 1.70-2.00 Ni 0.85-1.15 Mo 0.25-0.40 P ≤0.030 S ≤0.030

SIMILAR STEEL GRADE GB(CHINA) 3Cr2MnNiMo W.Nr.(GERMANY) 1.2738 AISI(USA) P20+Ni

PRODUCT FEATURES

Good polishability and photoetch performance. Good machinability, suitable for surface treatment (like chrome-plating). Good abrasion resistance, longer life of mould.

APPLICATION

Suitable for large scale, especially plastic mould with thickness ≥ 400MM, require for even hardness, high toughness and good surface polishability. Like large scale mould TV shell, copier shell, bumper, shock absorber, instrument panel, also mold of trash can and casting mould frame.

DELIVERY CONDITION

Q+T to 30-37HRC or according to client’s requirement

PHYSICAL PROPERTIES

Density (kg/m3) : 7800 Modulus of Elasticity (GPa)

Temperature/℃ 20 200

Modulus of Elasticity /GPa 205 200


Temperature/℃ 20 200

Thermal Conductivity W/m·K 29 29.5

Coefficient of Thermal ExpansionTemperature/℃ 20-100 20-200 20-300 20-400 20-500 20-600 20-700

Coefficient of linear expansion/℃-1,×10-6 11.1 12.9 13.4 13.8 14.2 14.6 14.9

Critical Temperature

Temperature(approx.) /℃ 715 770 Critical point Ac1 Ac3

Hot working

Standard hot working of 3Cr2MnNiMo Heating temperature/℃ Start forging temperature/℃ Finish forging temperature/℃ Cooling method

1140-1180 1050-1140 ≥850 Pit cooling

Heat treatment

Pre-heat treatment

High temperature tempering Isothermal annealing

31

Data sheet

Plastic Mould Steel 3Cr2MnNiMo

Quenching Recommended quenching temperature 850±20℃, oil cooling or air cooling

Time temperature transformation curve

Hardenability curve

Tempering Recommended tempering temperature: 550-650℃, air cooling

Tempering temperature on hardness and impact toughness Tempering temperature on intensity and plasticity

32

钢种信息

PLASTIC MOULD STEEL 10Ni3MnCuAl

10Ni3MnCuAl is a Ni-Al-Cu series steel, is a high performance and high precision pre-hardening plastic mould steel, has excellent cost performance.

CHEMICAL COMPOSITION (%)C 0.05-0.18 Si 0.15-1.00 Mn 1.00-2.00 Ni 2.50-3.50 Al 0.50-1.50 Cu 0.70-1.50 Mo 0.10-0.40 P ≤0.030 S ≤0.030

SIMILAR STEEL GRADE GB(CHINA) 10Ni3MnCuAl AISI(USA) P21 JIS(JAPAN) NAK80

PRODUCT FEATURES

Hardness can reach 37~43HRC after solid solution and ageing strengthen, can apply die milling and machining at original condition without heat treatment.

Ni-Al-Cu series ageing hardening steel has following characteristics:

Good machinability

Very easy to grind after EDM

Good welding permeability

Even hardness of surface and core, can keep precision degree during using

Because special melting is applied, has compact structure, very few inclusion, has following characteristics:

Excellent mirror face abrasive property, can get satisfied luminance

Good erode machinability, fine and nice surface after EDM.

APPLICATION

Applied in mirror polish mould, dust proof, light filter plate of TV, cosmetic box, business automation equipment, auto parts EDM mould. Crystal product or smooth finish required product. Like crystal product mould on automobile, camera, computer and etc.

DELIVERY CONDITION

Ageing pre-hardening to 370-400HB or according to client requirement

PHYSICAL PROPERTIES

Density (kg/m3): 8300 Coefficient of Linear Expansion

Temperature/℃ 20-100 20-200 20-300

Modulus of Elasticity /GPa 11.3 12.5 13.4

Mechanical properties

Mechanical properties at ordinary temperature(20℃):Hardness HRC Yield strength Kgf/mm2 Tensile strength Kgf/mm2 Elongation Reduction of crosssection area longitudinal impact value Kgf.m/cm2

41 103 128(147Ksi) 15.6% 38.0% 2.0

Mechanical properties at high temperature:

Mechanical properties 100 200 300

Mechanical properties Test temperature℃

Reduction of crosssection area (%) — 38.5 40.1

Impact value(Kgf.m/cm2) 1.8 3.6 3.5

Tensile strength (Ksi) — 145 143

Elongation (%) — 15.9 16.0

Hardness(HV) 395 375 360

33

Data sheet

PLASTIC MOULD STEEL 10Ni3MnCuAl

Heat treatment

Time temperature transformation curve (TTT) (initial condition: annealed, Austenitizing: 900℃ 15min)

(Test steel chemical composition (%): 0.11C, 1.58Mn, 0.011P, 0.004S, 0.22Si, 2.85Ni, 0.92Cu, 0.33Mo, 0.9Al)

Hardness after different temperature ageing

Affection of solid solution temperature on hardness Solid solution Temperatur℃ 780 810 840 870 900 940

Hardness/HRC 30.8 32.4 33.1 32.7 33.1 31.0

Recommended solid solution treatment standard Solid solution Temperature/℃ Cooling method

850±20 Air cooling

Recommended ageing hardening treatment Ageing temperature/℃ Ageing time/h Cooling method

510±10 4~8 Air cooling

34

钢种信息

PLASTIC MOULD STEEL 3Cr17NiMo

3Cr17NiMo is a new design of plastic mould steel. It has strong corrosion resistance and excellent mirror surface polishability.

CHEMICAL COMPOSITION (%) C 0.30-0.40 Si ≤1.00 Mn ≤1.00 Cr 16.00-17.50 Ni 0.60-1.00 Mo 0.80-1.30 P ≤0.035 S ≤0.020

SIMILAR STEEL GRADE GB(CHINA) 3Cr17NiMo W.Nr.(GERMANY) 1.2316 AISI(USA) 422

PRODUCT FEATURES

Strong corrosion resistance(better than S-136 and 1.2316) Excellent mirror surface polishability. Easy to do heat treatment, size is stable after Q+T pre-hardened. Good thermal fatigue resistance. Good abrasion resistance and toughness, (better than S-136 and 1.2316) easy to weld up.

APPLICATION

Apply for producing plastic mould requires chemical corrosion resistance. Especially suitable for thermoplastic corrosion plastic. Suitable for small scale mould.

DELIVERY CONDITION

Annealing, HB≤230 or Q+T according to client’s requirement

PHYSICAL PROPERTIES

Modulus of Elasticity (GPa) : 223 (20℃) Thermal Conductivity (W/m·K)

Temperature/℃ 20 350 700

Thermal Conductivity W/m·K 17.2 21.0 24.7

Coefficient of Thermal ExpansionTemperature/℃ 20-100 20-200 20-300 20-400 20-500

Coefficient of Thermal Expansion [10-6m/(m×K)] 10.4 10.8 11.2 11.6 11.9

HEAT TREATMENT

Annealing Heating to 780-820℃ at lowest heating speed, heat preservation for 3 hours; cooling with furnace to 600℃； Annealed hardness≤230 HB.

Quenching Quenching at 1020-1050℃, oil cooling or quenched liquid cooling Quenched hardness≥45 HRC

Tempering Tempering immediately after reaching required hardness, heat preservation at least 2 hours, air cooling

Comparison table of tempering temperature — hardness Temperature/℃ 100 200 300 400 500 600

Hardness (HRC) 49 47 46 46 47 32


Typical parameter of mechanical property(Heat treatment of sample: 1030℃ oil quenching, tempering at 780-800℃)

Rr0.2(MPa) Rm(MPa) A(%) Z(%) HRC

≥550 ≥750 ≥24 ≥50 26-30

35

Hardness Conversion Chart

VickersHardness

No.

940 – – 85.6 – 68.0 76.9 97 920 – – 85.3 – 67.5 76.5 96 900 – – 85.0 – 67.0 76.1 95 880 – (767) 84.7 – 66.4 75.7 93 860 – (757) 84.4 – 65.9 75.3 92 840 – (745) 84.1 – 65.3 74.8 91 820 – (733) 83.8 – 64.7 74.3 90 800 – (722) 83.4 – 64.0 73.8 88 780 – (710) 83.0 – 63.3 73.3 87 760 – (698) 82.6 – 62.5 72.6 86 740 – (684) 82.2 – 61.8 72.1 84 720 – (670) 81.8 – 61.0 71.5 83 700 – (656) 81.3 – 60.1 70.8 81 690 – (647) 81.1 – 59.7 70.5 – 680 – (638) 80.8 – 59.2 70.1 80 670 – 630 80.6 – 58.8 69.8 – 660 – 620 80.3 – 58.3 69.4 79 650 – 611 80.0 – 57.8 69.0 – 640 – 601 79.8 – 57.3 68.7 77 630 – 591 79.5 – 56.8 68.3 – 620 – 582 79.2 – 56.3 67.9 75 610 – 573 78.9 – 55.7 67.5 – 600 – 564 78.6 – 55.2 67.0 74 590 – 554 78.4 – 54.7 66.7 – 2055580 – 545 78.0 – 54.1 66.2 72 202570 – 535 77.8 – 53.6 65.8 – 1985560 – 525 77.4 – 53.0 65.4 71 1950550 (505) 517 77.0 – 52.3 64.8 – 1905540 (469) 507 76.7 – 51.7 64.4 69 1860530 (488) 497 76.4 – 51.1 63.9 – 1825520 (480) 488 76.1 – 50.5 63.5 67 1795510 (473) 479 75.7 – 49.8 62.9 – 1750500 (465) 471 75.3 – 49.1 62.2 66 1705490 (456) 460 74.9 – 48.4 61.6 – 1660480 448 452 74.5 – 47.7 61.3 64 1620470 441 442 74.1 – 46.9 60.7 – 1570460 433 433 73.6 – 46.1 60.1 62 1530450 425 425 73.3 – 45.3 59.4 – 1495440 415 415 72.8 – 44.5 58.8 59 1460430 405 405 72.3 – 43.6 58.2 – 1410420 397 397 71.8 – 42.7 57.5 57 1370410 388 388 71.4 – 41.8 56.8 – 1330400 379 379 70.8 – 40.8 56.0 55 1290390 369 369 70.3 – 39.8 55.2 – 1240380 360 360 69.8 (110.0) 38.8 54.4 52 1205370 350 350 69.2 – 37.7 53.6 – 1170360 341 341 68.7 (109.0) 36.6 52.8 50 1130350 331 331 68.1 – 35.5 51.9 – 1095340 322 322 67.6 (108.0) 34.4 51.1 47 1070330 313 313 67.0 – 33.3 50.2 – 1035320 303 303 66.4 (107.0) 32.2 49.4 45 1005310 294 294 65.8 – 31.0 48.4 – 980300 284 284 65.2 (105.5) 29.8 47.5 42 950295 280 280 64.8 – 29.2 47.1 – 935290 275 275 64.5 (104.5) 28.5 46.5 41 915285 270 270 64.2 – 27.8 46.0 – 905280 265 265 63.8 (103.5) 27.1 45.3 40 890275 261 261 63.5 – 26.4 44.9 – 875270 256 256 63.1 (102.0) 25.6 44.3 38 855265 252 252 62.7 – 24.8 43.7 – 840260 247 247 62.4 (101.0) 24.0 43.1 37 825255 243 243 62.0 – 23.1 42.2 – 805250 238 238 61.6 99.5 22.2 41.7 36 795245 233 233 61.2 – 21.3 41.1 – 780240 228 228 60.7 98.1 20.3 0.3 34 765230 219 219 – 96.7 (18.0) – 33 730220 209 209 – 95.0 (15.7) – 32 695210 200 200 – 93.4 (13.4) – 30 670200 190 190 – 91.5 (11.0) – 29 635190 181 181 – 89.5 (8.5) – 28 605180 171 171 – 87.1 (6.0) – 26 580170 162 162 – 85.0 (3.0) – 25 545160 152 152 – 81.7 (0.0) – 23 515150 143 143 – 78.7 – – 22 490140 133 133 – 75.0 – – 21 455130 124 124 – 71.2 – – 20 425120 114 114 – 66.7 – – – 390110 105 105 – 62.3 – – – –100 95 95 – 56.2 – – – –95 90 90 – 52.0 – – – –90 86 86 – 48.0 – – – –85 81 81 – 41.0 – – – –

Brinell Hardness 10mmBall,3000kgf load

StandardBall

TungstenCarbide Ball

A ScaleDiamond

Penetrator60kgf Load

B Scale1.588mm 1/16 in,Ball100kgf Load

C Scale Diamond


D ScaleDiamond


Rockwell HardnessShore

HardnessNo.

Approximate TensileStrength Mpa

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