DIN 2391外徑 是16-325,壁厚是1-22。冷拔精密無縫鋼管 Precision cold drawn seamless steel tube
基本介紹
- 中文名:DIN 2391
- 長度L:max 14000
主要用途
鋼號化學成分
牌號 | 化學成分(%) | ||||
Steel name | C max | Si max | Mn | P max | S max |
St 35 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 45 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 52 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
Steel grade | 化學成分(%) | ||||||
Steel name | Steel number | C max | Si max | Mn | P max | S max | Al min |
E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 | 0.025 |
E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | - |
E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | - |
機械化學性能
Steel grade | 冷拔光亮硬態 BK | 冷拔光亮硬態 BKW | 拉拔光亮 消除應力退火 BKS | 退火 GBK | 正火 NBK | |||||||
抗拉強度Rm N/mm min | 伸長率% min | 抗拉強度Rm N/mm min | 伸長率% min | 抗拉強度Rm N/mm min | 屈服強度 ReH N/mm min | 伸長率% min | 抗拉強度Rm N/mm min | 伸長率% min | 抗拉強度Rm N/mm min | 屈服強度 ReH N/mm min | 伸長率% min | |
St35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340-470 | 235 | 25 |
St45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
St52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490-630 | 355 | 22 |
Steel grade | Minimum values for the delivery condition | |||||||||||||
Steel name | Steel number | + C | + LC | + SR | + A | + N | ||||||||
Rm Mpa | A% | Rm Mpa | A% | Rm Mpa | ReH Mpa | A% | ReH Mpa | A% | Rm Mpa | ReH Mpa | A% | |||
E215 | 1.0212 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290-430 | 215 | 30 | |
E235 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340-480 | 235 | 25 | |
E355 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 450 | 10 | 450 | 22 | 490-630 | 355 | 22 |