Download - Präsentation etg hsx
ETG ® and HSX ®
Modern High Strength Steels
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Steeltec - Production plants
Swiss Steel AG- 600`000 p.a.- Special quality steel- Free cutting steel
Steeltec AG- 90`000 p.a.- Bright bars
Schmolz+Bickenbach AGSwiss Operations
MARKETS BY SEGMENT 4
Turning Shops
AutomotiveMachinery /Hydraulics
Automotive trends as a result of legal requirements
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ICEoptimization
Powertrainoptimization
Active andpassive
safety features
Reduction ofvehicle weight
Special steel solutions are required for each single application � modular materials!
ETG® - Static properties
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6 8 10 12800
1000
1100
1300
Ultimate elongation [%]
Ten
sile
str
eng
th [
N/m
m2 ]
14 16
1200
900
1400
ETG® 100
ETG® 88
200 µm
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ETG® - Static properties
6 8 10 12800
1000
1100
1300
Ultimate elongation [%]
Ten
sile
str
eng
th [
N/m
m2 ]
14 16
1200
900
1400
ETG® 100
ETG® 88
200 µm
STEELTEC 2009
ETG® components in automotive applications
shafts inelectrical drives
safety parts
hydraulicsystems
gearbox
common railsystem
ETG® - Component cost
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material cost
cutting speed
com
po
nen
tco
st
ETG® - Induction hardening (HF)
� treatment temperature 840°C � 870°C
� quenching media: oil, polymer
� tempering at 200°C for 1h
� hardening depth < 1 mm recommended
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Carbon content
%
Hardness
HRC
ETG® - Nitrocarburizing
Hardness pattern Microstructure
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ETG® 100Nitrated at 520°C with KN=2Nitrocarburized at 570°C with KN=2 + 2.5% CO2
distance from surface, mm
Vic
kers
har
dnes
s, H
V 0
.5
HSX®
High strength special steel forhighly loaded application
HSX® - Application areas
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6 8 10 12800
1000
1100
1300
14 16
1200
900
1400
ETG® 100
HSX® 130
ETG® 88
Parts, with a transmissionof high static forces:� Gear shafts� Camshafts� Drill shafts� Hydraulic /
pneumatic cylinders� Thrust bars
HSX® 110
HSX® Z12
Hydraulich tools, withtransmission of high forcesand in addition impact loads
Boltings with defined torque
Parts with high compressivestress
Ten
sile
str
eng
th [
N/m
m2 ]
Ultimate elongation [%]
HSX ® 90
HSX® - Microstructure
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HSX® 90 HSX® 110 HSX® Z12 HSX® 130
BainiteRp0.2 > 650 MPa
S = 0.01%
Ferrite / PearliteRp0.2 > 950 MPa
S = 0.035%
BainiteRp0.2 > 800 MPa
S = 0.15%
BainiteRp0.2 > 1200 MPa
S = 0.15%
HSX® - less component cost
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Heat treated and nitrited steel
HSX®
HSX®heat treated andnitrited steel
Ind
ex c
om
po
nen
tco
st
0
2
4
6
8
10
material
material
roughing annealing finishing
roughingfinishing
drilling
drilling
heattreatment
grinding
Yourbenefit!
Strong steel solutions to enhance your competitiveness!
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HSX® - Improved performance with same diameter
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C45E 42CrMoS4
strength class
HSX® 130
no
min
al to
rqu
e, k
Nm
6
3
5
4 78 %78 % 78 %78 %
18 %
shaft diameter: 50 mm
load
nominal torque see diagram
load dyn. fatigue stress
Nominal bending moment 500 Nm
load dyn. alternating load
Mode of operation:uniform, revolving motion
Rp0.2, MPa Rm, MPa
C45E 370 630
42CrMoS4 650 900
HSX® 130 1�300 1�350
HSX® - Lightweight design by reducing the diameter
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C45E 42CrMoS4
strength class
HSX® 130
wei
gh
t, %
100
0
50
Steel bar round 16 � 50 mm
Rp0.2, MPa Rm, MPa
C45E 430 650
42CrMoS4 750 1000
HSX® 130 1�300 1�350
axial load
shaft diameter: 50 mm
HSX® - Subsequent processes
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cold forming welding machining heat treating
HSX® 90
ETG® 88
ETG® 100
HSX® 110
material
process
ETG® 25
less suitable suitable well suitable
System: div. adjustmentsComponent: threated spindle
Automotiv Industrie
worm shaft
seat adjustmentseat up adjustment
Application example � worm gear shaft (d < 15 mm)
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Comparison of chemical composition
element ETG®25 HSX®90 ETG®88 ETG®88 C+
C, % 0.24 - 0.29 < 0.12 0.42 - 0.48 0.47 - 0.51
Si, % 0.10 - 0.30 < 0.60 0.10 - 0.30 0.10 - 0.30
Mn, % 1.20 - 1.50 < 2.00 1.35 - 1.65 1.35 - 1.65
P, % < 0.04 < 0.025 < 0.04 < 0.04
S, % 0.02 - 0.04 < 0.015 0.24 - 0.33 0.24 - 0.33
Mo, % < 0.04 < 0.50 < 0.04 < 0.04
Ti, % 0.02 - 0.04 < 0.22 --- ---
V, % --- < 0.20 --- ---
Application example � worm gear shaft (d < 15 mm)
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ETG®25 HSX®90 ETG®88 ETG®88 C+
Rp0.2, N/mm2 > 660 > 850 > 685 > 820
Rm, N/mm2 800 - 900 > 880 800 - 950 960 - 1150
A5, % > 12.0 > 12.0 > 7.0 > 7.0
microstructure ferrite/pearlite bainite ferrite/pearlite ferrite/pearlite
machining
welding
cold forming
criteria:
Comparison of mechancal-technological characteristics:
less suitable well suitable
Thank you very much
for your attention!
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