Jiangsu Hongbao Group Co., Ltd.
Jiangsu Hongbao Group Co., Ltd. Manufacture since 1958
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High Precision Camshaft Tube, Seamless or Welding Tube. Material of E355
| Material: | E235,E355 |
| Standard: | EN10305-1,EN10305-2 |
| Delivery Condition: | +C,+N |
| Size Range: | Outer Diameter:φ10-φ50 Wall Thickness: 1.5-8 |
| Application: | High Precision Steel Tube is Widely Used in Automotive Part, Hydraulic System, High-precsion Machining. |
Delivery conditions
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, therefore small steel pipe plastic, the plastic degree does not guarantee
4. BKW(+LC)
after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)