Jiangsu Hongbao Group Co., Ltd.
| Payment Terms | L/C, T/T |
| Delivery Time | 45 - 60 days |
| Packaging Details | Steel box packaging |
| Thickness | 0.5-20mm |
| Diameter | 10-160mm |
| Shape | Round |
| Material | E215, E235, E355, 26MnB5, 34MnB5 |
| Standard | ASTM, JIS, DIN, EN |
| MOQ | 1 Ton |
| Application | Machinery, auto industry, oil cylinder tube, motorcycle shock absorber |
| Packaging | Standard Export Package |
| Brand Name | Hongbao |
| Place of Origin | China |
| Certification | IATF 16949; ISO 9001 |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 45 - 60 days |
| Packaging Details | Steel box packaging | Thickness | 0.5-20mm |
| Diameter | 10-160mm | Shape | Round |
| Material | E215, E235, E355, 26MnB5, 34MnB5 | Standard | ASTM, JIS, DIN, EN |
| MOQ | 1 Ton | Application | Machinery, auto industry, oil cylinder tube, motorcycle shock absorber |
| Packaging | Standard Export Package | Brand Name | Hongbao |
| Place of Origin | China | Certification | IATF 16949; ISO 9001 |
| High Light | Customized Thickness Welded Steel Tube ，Galvanized Surface Welded Steel Pipe ，Beveled Ends HFW Steel Pipe | ||
EN10305-2 E215 E235 Welded Steel Pipe, Precision Cold Drawn Steel Pipe for Machinery
Description
EN10305-2 welded precision cold drawn steel tubes are manufactured from electric welded pre-tubes through cold drawing or other suitable processes. These tubes are designed for high-precision applications in the machinery and automotive sectors, offering excellent dimensional accuracy and surface quality. The absence of welds used for joining lengths of flat rolled strips prior to forming ensures superior structural integrity.
Size Range
Steel Grades
Manufacturing Process
Key Advantages
Chemical Composition (max values, % by weight)
| Steel Grade | Steel Number | C | Si | Mn | P | S |
|---|---|---|---|---|---|---|
| E195 | 1.0034 | 0.15 | 0.35 | 0.70 | 0.025 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 |
| E275 | 1.0225 | 0.21 | 0.35 | 1.40 | 0.025 | 0.025 |
| E355 | 1.0580 | 0.22 | 0.35 | 1.60 | 0.025 | 0.025 |
Mechanical Properties (Minimum Values at Room Temperature)
| Steel Grade | Delivery Condition | Rm (MPa) | ReH (MPa) | A (%) |
|---|---|---|---|---|
| E195 | +C | 420 | ≥0.8 Rm | 6 |
| +LC | 370 | ≥0.7 Rm | 10 | |
| +SR | 370 | 260 | 18 | |
| E235 | +C | 490 | ≥0.8 Rm | 6 |
| +LC | 440 | ≥0.7 Rm | 10 | |
| +SR | 440 | 325 | 14 | |
Testing & Inspection
Competitive Advantages
Company Details
Business Type:
Manufacturer
Year Established:
1958
Total Annual:
>76000000
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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