European Code | USA Code AISI/SAE/ ASTM | % Alloy content | Application Examples |
C | Cr | Ni | Mo | V |
C22 |
|
0.22 |
|
|
|
|
Low Stress structural components |
C35 |
1035/1038 |
0.35 |
|
|
|
|
Standard Stress structural components |
C45R |
1049 |
0.45 |
|
|
|
|
Standard Stress structural components |
C55E |
|
0.55 |
|
|
|
|
Gear shafts and wheels |
1% Cr and CrMo Steel |
28Cr4 |
|
0.25 |
1 |
|
|
|
Driving wheels and shafts |
25CrMo4 |
|
0.25 |
1 |
|
0.25 |
|
Axle arbors, turbine components |
34Cr4 |
5132 |
0.34 |
1 |
|
|
|
Axle, axle arms |
34CrMo4 |
4135/4137 |
0.34 |
1 |
|
0.25 |
|
High toughness components, incl. crank shafts, axle arbors |
41Cr4 |
5140 |
0.41 |
1 |
|
|
|
Axles, control components |
42CrMo4 |
4140/4142 |
0.41 |
1 |
|
0.25 |
|
High toughness components for automobiles and aircraft |
48CrMo4 |
|
0.5 |
1 |
|
0.25 |
|
Steel for induction hardening up to 250 mm Diameter |
50CrMo4 |
4150 |
0.5 |
1 |
|
0.25 |
|
High toughness components for automobiles and aircraft |
CrNiMo Steel |
36CrNiMo4 |
4340/4980 |
0.36 |
1 |
1 |
0.25 |
|
Highly charged components for automobiles and aircraft |
34CrNiMo6 |
4337/4340 |
0.34 |
1.5 |
1.5 |
0.25 |
|
Crank shafts, eccentric shafts, gear components |
30CrNiMo8 |
|
0.3 |
2 |
2 |
0.4 |
|
Structural components for heavy demands |
NiCrMo Steel |
28NiCrMo4 |
|
0.28 |
1 |
1 |
0.25 |
|
Structural components for very heavy demands |
33NiCrMoV14-5 |
|
0.33 |
1.3 |
3.5 |
0.5 |
0.2 |
Generator shafts, high strengt & toughness components |
36NiCrMo16 |
|
0.36 |
1.8 |
4 |
0.7 |
|
High strength mechanical engineering components |
CrMoV Steel |
14CrMoV6-9 |
|
0.14 |
1.5 |
|
0.9 |
0.3 |
High strength welded components |
30CrMoV9 |
|
0.3 |
2.25 |
|
0.25 |
0.2 |
High toughness crank shafts, screws, bolts |
All grades with Mn between 0.5 and 0.9% |