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 | E235 |
| Shape | Round |
| Delivery Condition | +C,+LC，+SR，+N，+A |
| Standard | EN10305-2 |
| Type: | Welded or Seamless |
| Thickness: | 0.5-15mm |
| 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 | E235 | Shape | Round |
| Delivery Condition | +C,+LC，+SR，+N，+A | Standard | EN10305-2 |
| Type: | Welded or Seamless | Thickness: | 0.5-15mm |
| Brand Name | Hongbao | Model Number | HB-WT-001 |
| Certification | TS16949, ISO9001, OHSAS18001 etc. | Place of Origin | China |
| High Light | welding round tubing ，cold drawn welded tubes | ||
E235 EN10305-2 WT15 Straight Mild Cold Drawn Welded Tubes With Good Mechanical Properties
Introduction
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.
Main Data
| Material: | E235 |
| Other Material Aviable | E355 |
| 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. |
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
Chemical Compositions
| Steel Number | Quality Level | Thickness/mm | Deoxidize Method | C(%)≤ | Si(%)≤ | Mn(%)≤ | P(%)≤ | S(%)≤ |
| E185(Fe310) | 0 | - | - | - | - | - | - | - |
| E235(Fe360) | A B
C D | ≤16 ＞16-25 ≤40 ＞40
| N - - E NE NE GF | 0.22 0.17 0.20 0.17 0.20 0.17 0.17 | - 0.40 0.40 0.40 0.40 0.40 0.40 | - 1.40 1.40 1.40 1.40 1.40 1.40 | 0.050 0.045 0.045 0.045 0.045 0.040 0.035 | 0.050 0.045 0.045 0.045 0.045 0.040 0.035 |
| E275(Fe430) | A B C D | ≤40 ＞40 | - E NE NE GF | 0.24 0.21 0.22 0.20 0.20 | - 0.40 0.40 0.40 0.40 | - 1.50 1.50 1.50 1.50 | 0.050 0.045 0.045 0.040 0.035 | 0.050 0.045 0.045 0.040 0.035 |
| E355(Fe510) | C D | ≤30 ＞30 ≤30 ＞30 | NE NE GF GF | 0.20 0.22 0.20 0.22 | 0.55 0.55 0.55 0.55 | 1.60 1.60 1.60 1.60 | 0.040 0.040 0.035 0.035 | 0.040 0.040 0.035 0.035 |
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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