The New High-grade steel for

plastic moulding

最新发展P20级高强度塑料模具钢

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

GS 738 EHT

H

GS-738 ET

RC 38HRC

33H-

GS06018

A steel that takes you into a new world of

design, quality and cost-efficiency

+

++

+

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+

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+

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? One material for virtually all moulds? Good machinability? Optimum suitability for polishing and

texturing? Improved weldability

? Uniform hardness down to the core, resulting in improved parting-line robustness of the mould

? Higher productivity due to improved thermal conductivity

? Higher product quality due to improved polishing and texturing properties

? Greater wear resistance due to supply of hardnesses up to 355 HB

? Improved repair weldability? Longer service life due to uniform hardness down

to the core

Advantages for the mould-maker

2Strength supplied:1050-1200N/MM

Hardness supplied:310-355HB

Hardness/Strength

A targeted development tomeet increasing demands

Larger components, more complex moulds, even more exacting surfaces the demands imposed on the mould-making and plastics industries are growing all the time. What they need is a steel that is not only very hard, but also easy to machine. GS-738 EHT is a new, high-tech steel developed on the basis of our successful GS-311 and GS-738 grades for plastic moulding and geared precisely to these tougher demands.Targeted modification of the composition and additional measures in smelting and secondary metallurgy lend it properties unlike those of any steel before it.

GS-738 EHT stands for excellent product quality and dependable production.GS-738 EHT offers major improvements, especially for the construction of relatively large and complicated moulds:? Greatly improved through-hardenability? Uniform hardness down to the core? Good machinability? Optimum suitability for polishing and texturing Compared to the steel grades commonly used in the past, it also displays substantially improved weldability and greatly increased thermal conductivity.This new steel takes you into a new world of size, design, product quality and, above all, dependable production and cost-efficiency.

Advantages for the tool user

GS-738 ETH is the optimum material for virtually every mould needed for injection moulding in the plastics industry.

Take advantage of competent advice, joint material development and short delivery periods.

1.2311

1.2738

GS-2738 EHT

超大型的塑料模具，复杂的型框，精准度高的模面，都是市场不断更新的目标。模具制造厂对模具钢材的要求也与时俱进，塑料模具钢材不单要求更高硬度，也要求易加工。GS-738 EHT 是最新开发的高科技产品，根据多年来成功的GS311及GS738，再加上新的熔炼工艺，新的锻造概念，开发史无前例的高质量预硬塑料模具钢材。

? 高淬透性? 高精光度及光蚀性? 高平均切面硬度? 易焊接? 易切削? 优良传热性能

GS738 EHT 的优点可以例举如下：

市场追求的目标

Print Date: 2006-04-18

传真：00852-26024765

传真：0512-53253273

传真：0574-65530973

传真：0769-85524174

o20-700 C

14.3

33-38HRC

特别适用于进行深加工和高强度需求的大型注射和压缩塑胶模。例如缓冲架模具，后档板、机翼、面板工具电视外壳等机壳模具。

o 3 o 3at 20 C room temperature 7.75 kg/dm 20 C室温约值7.75kg/dm

700

24

835

预硬塑胶模钢，供货硬度一般为310-355HB，比GS-738有所改进。良好的机械加工性能，良好的抛光性能和良好的焊接性能。

2N/mm

Mo钼

800

1670

+

o700 C

33.0

700

Tempering temperature in ℃

o20-600 C

Hardness HB 硬度max. 最大值: 235

Tempering diagram

14.1

600

max.hardness最高硬度:

600

37

1175

500-

o20-500 C

13.8

Ni镍

1.0

400 300

电话：0769-85521777 85524209 85500365

HRC 硬度

500

44

1400

o20-400 C

50

200

13.5

o350 C

37.4

100

电话：0512-53253271 53253272

电话：0574-65530928 65530972

-

Cr铬

1.3

o20-300 C

1530

0

400

47

30

34

38

42

46

50

54

58

62

66

70

钢材特性

13.1

Har

dn

ess

in H

RC

电话：00852-26990339

用途

o20-200 C

12.5

Polymer, oil bath淬火剂,油,盐浴

, salt

Mn锰

1630

1.5

300

49

Delivery condition:出厂状态:

Furnace cooling随炉缓冷

o20 C

38.0

o20-100 C

GS-738 EHT is particularly suitable for large plastic injection andcompression moulds with deep engravings and high demands on corestrength, e.g. for bumper bar moulds, moulds for tailgates, wings, spoilers, instrument panels, TV housings and much mode.

11.8

Prehardened plastic mould steel, hardness in as-supplied condition 310-355 HB. Improved through-hardening in comparison withGS-738 . Good machinability, polishability and weldability, suitable for texturing.

1670

200

50

C碳

0.28

oC 温度

oC 温度

香港：香港新界沙田火炭黄竹洋街14-18号华生工业大厦地下一室

100

50

1670

(Typical analysis in %) (典型分析结果 %)

江苏：江苏省太仓市直塘镇直水路9889号（215417）

浙江：浙江省宁海经济开发区新兴工业园 (315600)

P20 mod.

Chemical Composition 化学成份

Coefficient of thermal expansion

~2798

Physical Properties 物理性能

东莞：广东省东莞市虎门镇新联村（523917）

HRC2N/mm

OC

oSoft annealing C 软性退火o(710-730 C)

-6热膨胀系数 10xm/(m.k)

Heat treatment 热处理

Thermal conductivity

oHardening C 硬化o(880 C)

Steels properties

热传率 W/(m.k)

Density 密度

DIN-Code :

Applications

Tempering回火

AISI 代号