Brazil · NBR
1135
ABNT NBR 6915:1991 — Steel for die hot forging. Specification
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.32 | 0.39 | ||
| Mn | 0.5 | 0.9 | ||
| P | 0.06 | |||
| S | 0.15 | 0.25 | ||
| Si | 0.1 | 0.4 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| forgings, forged | HB ≤262 |