Jiangsu Hongbao Group Co., Ltd.
Jiangsu Hongbao Group Co., Ltd. Manufacture since 1958
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Round ERW Welded Hollow Steel Tube For Car Hydraulic System St52.4 E355
Description:
| Advantaged Product Specification | |||
| English | Chinese | ||
|
Outside Diameter |
Wall |
Outside |
Wall |
| From 1/2 to 5 | From SCH40 to XXS | From 25 to 356 | From4 to 80 |
| Length | From 2m to 12.5m in accordance with customers' requirements | ||
|
|
Chisese | American | German |
| 10# | ASTM A53-A | St37 DIN1626 | |
| ASTM A106-A | St37-2 DIN17175 | ||
| ASTM A179-C | St35.8 DIN17175 | ||
| ASTM A192 | St35.8 DIN17175 | ||
| 20# | ASTM A53-B | St42-2 DIN1626 | |
| ASTM A106-B | St45-8 DIN17175 | ||
| ASTM A178-C | St45-4 DIN1629 | ||
| 45# | ASTM A1045 | CK45 | |
| 16Mn | ASTM A210-C | St52 DIN1629 | |
| 37Mn5 | J55 | ||
| 27SiMn | |||
| CrMo | ASTM 4135,4150 | CrMo4 DIN17212 | |
| 40Cr | ASTM 5140 | 41Cr4 | |
Delivery Condition
1. NBK(+N)
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
2. GBK(+A)
after cold forming, annealing in non oxidizing medium protective gas
3. BK(+C)
the final heat treatment after cold forming, threfore small steel pipe plasticly, the plasticly degree does not guarantee