Poland · PN
38 HA
PN H74246:1996 — PN H74246
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.35 | 0.42 | ||
| Cr | 0.8 | 1.1 | ||
| Cu | 0.3 | |||
| Mn | 0.5 | 0.8 | ||
| Ni | 0.3 | |||
| P | 0.025 | |||
| S | 0.025 | |||
| Si | 0.17 | 0.37 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| steel tubes, Heat treated | ≥730 | ≥880 | ≥12 for A5;max 13 % for A10 | ≥50 | ≥98 For wt=>12mm |