Jiangsu Hongbao Group Co., Ltd.
| Supply Ability | 800MT/Month |
| Delivery Time | Negotiable |
| Packaging Details | Wooden cases |
| Payment Terms | L/C,T/T |
| Material | 26MnB5 |
| Length | Random or fixed length |
| Shape | Round |
| Technical | Seamless or welded |
| Standard | EN10305-1, EN10305-2 etc |
| High Light | Erw carbon steel pipe |
| Brand Name | Hongbao |
| Model Number | HBWS-001 |
| Certification | TS16949, ISO9001 |
| Place of Origin | Jiangsu, China |
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Product Specification
| Supply Ability | 800MT/Month | Delivery Time | Negotiable |
| Packaging Details | Wooden cases | Payment Terms | L/C,T/T |
| Material | 26MnB5 | Length | Random or fixed length |
| Shape | Round | Technical | Seamless or welded |
| Standard | EN10305-1, EN10305-2 etc | High Light | Erw carbon steel pipe |
| Brand Name | Hongbao | Model Number | HBWS-001 |
| Certification | TS16949, ISO9001 | Place of Origin | Jiangsu, China |
| High Light | welded steel pipe ，cold drawn welded tubes | ||
DOM E155 E195 E235 E275 E355 Carbon Steel Pipe Seamless Hydraulic Tube is a high-quality, seamless solution for hydraulic applications, engineered for robust performance. Crafted from durable carbon steel, these tubes offer exceptional strength and reliability in hydraulic systems. With seamless construction, they ensure efficient fluid flow and longevity, making them ideal for demanding hydraulic environments.
The internal and external surface finish of the tubes is smooth, while the weld seam is not visible or tangible. The ID surface has roughness Ra≤4μm, with the best ID smoothness reaching Ra≤0.8μm. The inner surface can be measured and reported if requested by the purchaser before purchase order.
Available steel grades: E155, E195, E235, E275, E355
Available delivery conditions: +C, +LC, +SR, +A, +N
| Designation | Symbol | Description |
|---|---|---|
| Cold drawn / hard | +C | Without thermal processing, after the process of cold drawing is finished |
| Cold drawn / soft | +LC | After final thermal processing, appropriate drawing |
| Cold drawn and annealed | +SR | After the final cold drawing process and annealing thermal processing in a controlled atmosphere |
| Annealed | +A | After the final cold drawing process, the pipes are annealed in a controlled atmosphere |
| Normalized | +N | After the final cold drawing process, the pipes are normalized in a controlled atmosphere |
DOM, ERW + cold drawn
| Steel Grade | +C | +LC | +SR | +A | +N | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rm MPa | A % | Rm MPa | A % | Rm MPa | ReH MPa | A % | Rm MPa | A % | Rm MPa | ReH MPa | A % | |
| E155 | 400 | 6 | 350 | 10 | 350 | 245 | 18 | 260 | 28 | 270-410 | 155 | 28 |
| E195 | 420 | 6 | 370 | 10 | 370 | 260 | 18 | 290 | 28 | 300-440 | 195 | 28 |
| E235 | 490 | 6 | 440 | 10 | 440 | 325 | 14 | 315 | 25 | 340-480 | 235 | 25 |
| E275 | 560 | 5 | 510 | 8 | 510 | 375 | 12 | 390 | 21 | 510-550 | 275 | 21 |
| E355 | 640 | 4 | 590 | 6 | 590 | 435 | 10 | 450 | 22 | 490-630 | 355 | 22 |
| Steel Grade | C max % | Si max % | Mn max % | P max % | S max % |
|---|---|---|---|---|---|
| E155 | 0.11 | 0.35 | 0.70 | 0.025 | 0.025 |
| E195 | 0.15 | 0.35 | 0.70 | 0.025 | 0.025 |
| E235 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 |
| E275 | 0.21 | 0.35 | 1.40 | 0.025 | 0.025 |
| E355 | 0.22 | 0.35 | 1.60 | 0.025 | 0.025 |
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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