European Union · EN
E 55 5 2NiMo
EN 757:1997 — EN 757
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.03 | 0.1 | ||
| Cr | 0.2 | |||
| Cu | 0.3 | |||
| Mn | 1.4 | |||
| Mo | 0.3 | 0.6 | ||
| Nb | 0.05 | |||
| Ni | 1.8 | 2.6 | ||
| P | 0.025 | |||
| S | 0.02 | |||
| V | 0.05 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| electrodes | ≥550 The lower yield (ReL) is used | 610–780 | ≥18 Gauge length is equal to five times the test specimen | ≥47 Charpy V Notch (-50°C) |
High/low temperature
| Condition | Temperature ℃ | min | Remarks |
|---|---|---|---|
| electrodes | -50 | 47 | Charpy V Notch |