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首页 > DIN2391-1/EN10305-1
| 标准: DIN 2391-1/EN 10305-1 | |
|
冷拔或冷轧精密无缝钢管GB/T 3639 Cold drawn or cold rolled precision seamless steel tubes
液压气动缸筒用精密内径无缝钢管GB/T 8713 inside precision seamless tubes for hydraulic pressure and pneumatic services |
|
| Application: | 汽车用管/for Atuo usd;机械用途/for machinery use;油缸管/Oil cylinder tube;摩托车减震器钢管/Motorcycle shock reducer steel tubes;汽车减震器内缸筒/Auto shock reducer inner cylinder |
| Size(mm): | 外径O.D.：4.0～76.0 壁厚 W.T.:0.5～8.0 长度L：max 6000 |
钢号及化学成分 Grade and Chemical Composition(%):
| 牌号 | 化学成分（%） | ||||
| 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 | 化学成分（%） | ||||||
| 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
|
-
|
机械化学性能 Mechanical Properties(Mpa):
| Steel grade |
冷拔光亮硬态 BK |
冷拔光亮硬态 BKW |
拉拔光亮 消除应力退火 BKS |
退火 GBK | 正火 NBK | |||||||
|
抗拉强度Rm N/mm min |
伸长率% min |
抗拉强度Rm N/mm min |
伸长率% min |
抗拉强度Rm N/mm min |
屈服强度 ReH N/mm min |
伸长率% min |
抗拉强度Rm N/mm min |
伸长率% min |
抗拉强度Rm N/mm min |
屈服强度 ReH N/mm min |
伸长率% 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
|
235
|
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
|
|