Germany · DIN
TStE 420
DIN 17103:1989 — DIN 17103
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| Al | 0.02 | If nitrogen is additionally fixed by niobium | If nitrogen is additionally fixed by niobium | |
| C | 0.2 | |||
| Cr | 0.3 | |||
| Cu | 0.2 | |||
| Mn | 1 | 1.7 | ||
| Mo | 0.1 | |||
| N | 0.02 | |||
| Nb | 0.05 | |||
| Ni | 1 | |||
| P | 0.03 | |||
| S | 0.025 | |||
| Si | 0.1 | 0.6 | ||
| V | 0.2 | |||
| V+Nb | 0.22 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| forgings, 100 < d <= 150 mm | ≥365 | 510–670 | ≥19；≥20 | ≥39 ISO V-Notch acc. to DIN 50115；≥63 ISO V-Notch acc. to DIN 50115 | ||
| forgings, 150 < d <= 375 mm | ≥345 | 510–670 | ≥17；≥18 | ≥39 ISO V-Notch acc. to DIN 50115；≥63 ISO V-Notch acc. to DIN 50115 | ||
| forgings, 24 < d <= 50 mm | ≥410 | 530–680 | ≥19；≥20 | ≥39 ISO V-Notch acc. to DIN 50115；≥63 ISO V-Notch acc. to DIN 50115 | ||
| forgings, 375 < d <= 600 mm | ≥325 | 510–670 | ≥17；≥18 | ≥39 ISO V-Notch acc. to DIN 50115；≥63 ISO V-Notch acc. to DIN 50115 | ||
| forgings, 50 < d <= 100 mm | ≥385 | 530–680 | ≥19；≥20 | ≥39 ISO V-Notch acc. to DIN 50115；≥63 ISO V-Notch acc. to DIN 50115 | ||
| forgings, d <= 24 mm | ≥420 | 530–680 | ≥19；≥20 | ≥39 ISO V-Notch acc. to DIN 50115；≥63 ISO V-Notch acc. to DIN 50115 |