Jiangsu Hongbao Group Co., Ltd.
| Supply Ability | 60000 MT per Year |
| Delivery Time | 30-45 Days |
| Packaging Details | Seaworthy Wooden box, customized Packing |
| Payment Terms | L/C, T/T |
| Material | E255 |
| Shape | Round |
| Application | Automotive Part, Hydraulic System, High-precsion Machining,etc. |
| Delivery Condition | +C,+LC，+SR，+N，+A |
| Standard | EN10305-2 |
| OD | 6-80mm |
| Brand Name | Hongbao |
| Model Number | HB-WT-001 |
| Certification | TS16949, ISO9001, OHSAS18001 etc. |
| Place of Origin | China |
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Product Specification
| Supply Ability | 60000 MT per Year | Delivery Time | 30-45 Days |
| Packaging Details | Seaworthy Wooden box, customized Packing | Payment Terms | L/C, T/T |
| Material | E255 | Shape | Round |
| Application | Automotive Part, Hydraulic System, High-precsion Machining,etc. | Delivery Condition | +C,+LC，+SR，+N，+A |
| Standard | EN10305-2 | OD | 6-80mm |
| Brand Name | Hongbao | Model Number | HB-WT-001 |
| Certification | TS16949, ISO9001, OHSAS18001 etc. | Place of Origin | China |
| High Light | welded steel pipe ，cold drawn welded tubes | ||
Standard EN10305-2 Material E255 High Precision Welded Steel Tube
Description:
Cold drawn welded pipe, it is the production of one of the best choice of the multistage hydraulic cylinder tube, its process and precision seamless steel tube cold drawing process, is to use precision resistance welding (ERW) precision drawing, manufacturing the EN 10305-2 eu mechanical cold drawn steel tube welding standard.
After welding of resistance welded pipe, the overall pipe body passes through the positive fire to ensure that the weld and heat affected zone are in the same quality as the other parts in the metallographic structure and mechanical properties; Cold drawing and subsequent heat treatment (eliminating internal stress) and steel pipe have good size and mechanical properties.
| Material: | E255 |
| Standard: | EN10305-2 |
| Delivery Condition: | +C,+LC,+SR,+N,+A |
| Size Range: | Outer Diameter:φ6-φ80 Wall Thickness: 0.5-10 |
| Application: | High Precision Steel Tube is Widely Used in Automotive Part, Hydraulic System, High-precsion Machining. |
+C No heat treatment after the final cold drawing process
+LC After the final heat treatment there is a suitable drawing pass
+SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
+A After the final cold drawing process the tubes are annealed in a controlled atmosphere
+N After the final cold drawing operation the tubes are normalized in a controlled atmosphere
Producing Process:
Produced by cold drawing over mandrel and die on the ERW welded steel tube, to achieve better tolerance and good concentricity, both outside and inside weld seam is completely removed during the cold drawing process.
Advantage (compare with seamless cold drawn tube):
1.Better shape
2.Improved quality surface
3.Tight Excentricity and wall thickness tolerances
4.Good toughness at low temperature
5.USA Market: 90% of the cylinder in the USA market are produced with welded tubes
6.Cost fix Lengths More Cheaper
Application:
High Precision Steel Tube is Widely Used in
Automotive Part,
Hydraulic System,
High-precsion Machining.
Company Details
Business Type:
Manufacturer
Year Established:
1958
Total Annual:
60000000-80000000
Employee Number:
700~1000
Ecer Certification：
Verified Supplier
Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali... Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali...
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