IC4130 /ASTM A732 GR. 7Q |
100 Rb |
23-49 Rc |
Structural applications / Good weldability |
IC4140 /ASTM A732 GR. 8Q |
100 Rb |
29-57 Rc |
Good toughness / Fatigue resistance |
IC4340 /ASTM A732 GR. 10Q |
20 Rc |
20-55 Rc |
High strength / Fatigue resistance |
IC4620 /ASTM A732 GR. 11Q |
100 Rb |
20-32 Rc |
General application / carburizing |
IC6150 /ASTM A732 GR. 12Q |
100 Rb |
30-60 Rc |
High abrasion & shock resistance |
IC8620 /ASTM A732 GR. 13Q |
100 Rb |
20-45 Rc |
Carburizing used for gears, crankshafts etc. |
IC8630 /ASTM A732 GR. 14Q |
100 Rb |
25-50 Rc |
Often used for machine parts |
IC52100 /ASTM A732 GR. 15A |
25 Rc |
30-65 Rc |
High carbon / Good abrasion resistance |
9310 / SAE 9310 |
100 Rb |
24-43 Rc |
Similar to 8620 / Good core hardness |