Russia · GOST
21H2NVFA
GOST 11268:1976 — GOST 11268
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.19 | 0.23 | ||
| Cr | 1.9 | 2.4 | ||
| Cu | 0.25 | On request by purchaser the content of copper may be Cu=0.20%. | On request by purchaser the content of copper may be Cu=0.20%. | |
| Mn | 0.3 | 0.7 | ||
| Mo | 0.15 | |||
| Ni | 0.8 | 1.2 | ||
| P | 0.025 | |||
| S | 0.025 | |||
| Si | 0.17 | 0.37 | ||
| Ti | 0.03 | |||
| V | 0.18 | 0.28 | ||
| W | 1 | 1.4 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| sheet, normalized | 490–740 | ≥15 Lo = 5 mm; A=min 11.%0 in Lo = 10 mm | ||||
| sheet, quenched and tempered | ≥1130 | ≥9 Lo = 5 mm |