德国 · DIN
12 Ni 19
DIN 17173:1985 — Seamless steel tubes for low temperatures; technical delivery conditions
化学成分
| 元素 | min | max | 相似 | 备注 |
|---|---|---|---|---|
| C | 0.15 | |||
| Mn | 0.3 | 0.8 | ||
| Ni | 4.5 | 5.3 | ||
| P | 0.025 | |||
| S | 0.02 | |||
| Si | 0.35 | |||
| V | 0.05 |
力学性能
| 热处理 / 状态 | 屈服强度 | 抗拉强度 | 伸长率 | 断面收缩率 | 冲击功 | 硬度 |
|---|---|---|---|---|---|---|
| Seamless tubes 淬火及回火 (V) 25 < d <= 40 mm (横向) | ≥380 | 510–710 | ≥17 | ≥50 ISO V-Notch acc. to DIN 50115 | ||
| Seamless tubes 淬火及回火 (V) 25 < d <= 40 mm (纵向) | ≥380 | 510–710 | ≥19 | ≥70 ISO V-Notch acc. to DIN 50115 | ||
| Seamless tubes 淬火及回火 (V) d <= 25 mm (横向) | ≥390 | 510–710 | ≥17 | ≥50 ISO V-Notch acc. to DIN 50115 | ||
| Seamless tubes 淬火及回火 (V) d <= 25 mm (纵向) | ≥390 | 510–710 | ≥19 | ≥70 ISO V-Notch acc. to DIN 50115 |