Jiangsu Hongbao Group Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 30000MT per year |
| Delivery Time | Within 50 days if production |
| Packaging Details | Seaworthy plywooden case packaging |
| Material | E235, E355, 26MnB5, 34MnB5 |
| Certificate | TS16949, DNV, PED, ISO |
| Thickness | 0.5-15mm |
| OD | 6-120mm |
| High Light | Welded steel tubing |
| Brand Name | Hongbao |
| Model Number | HBWST-1 |
| Place of Origin | Jiangsu,China |
| Certification | TS16949, DNV, PED, ISO |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 30000MT per year |
| Delivery Time | Within 50 days if production | Packaging Details | Seaworthy plywooden case packaging |
| Material | E235, E355, 26MnB5, 34MnB5 | Certificate | TS16949, DNV, PED, ISO |
| Thickness | 0.5-15mm | OD | 6-120mm |
| High Light | Welded steel tubing | Brand Name | Hongbao |
| Model Number | HBWST-1 | Place of Origin | Jiangsu,China |
| Certification | TS16949, DNV, PED, ISO | ||
| High Light | Galvanized Welded Tubular Steel Tube ，Welded Tubular Steel Tube ，Welded Steel Tube with Threaded Ends | ||
Thin Wall Thickness Carbon Steel Tube , Cold Drawn Welded Steel Tube For Automotive System
Description:
Thin wall thickness carbon steel tubes are cold drawn welded steel tubes tailored for automotive systems. These lightweight yet sturdy tubes provide excellent strength-to-weight ratios, making them ideal for various applications, such as fuel lines and hydraulic systems. Their precision engineering ensures consistent dimensions and a smooth finish, enhancing performance and reliability. The cold drawing process enhances mechanical properties, allowing for improved flexibility and durability. These tubes are essential components in modern vehicles, contributing to efficiency and overall system functionality.
Main Date:
Material: E355
Other Aviliable Material: E155 E195 E235 E275
Outer Diameter Range: 10-50mm
Wall Thickness Range: 1.5-8mm
t/D ≥ 0.2(Normal: t/D=0.1)
Standard: En10305-2
Process: Cold Drawn, Cold Rolling
Typical Specification:
| Grade | Welding Typical Specification | Yield Strength | |
| 3 | E355 | Φ38×4.5 | 355～450Mpa |
Chemical Component:
| 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 |
Stength Yield:
| Steel Number | Yield Strengh/MPa | |||||||
| ≤16 | ＞16-40 | ＞40-63 | ＞63-80 | ＞80-100 | ＞100-150 | ＞150-200 | ||
| E185(Fe310) | - | 185 | 175 | - | - | - | - | - |
| E235(Fe360) | A B BNF C D | 235 235 235 235 235 | 225 225 225 225 225 | 215 - 215 215 215 | 215 - 215 215 215 | 215 - 215 215 215 | 195 - 195 195 195 | 185 - 185 185 185 |
| E275(Fe430) | A B C D | 275 275 275 275 | 265 265 265 265 | 255 255 255 255 | 245 245 245 245 | 235 235 235 235 | 225 225 225 225 | 215 215 215 215 |
| E355(Fe510) | C D | 355 355 | 345 345 | 335 335 | 325 325 | 315 315 | 295 295 | 285 285 |
Delivery Condition:
1) +C No heat treatment after the final cold drawing process.
2) +LC After the final heat treatment there is a suitable drawing pass.
3) +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.
4) +A After the final cold drawing process the tubes are annealed in a controlled atmosphere.
5) +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere.
Advantage (compare with seamless cold drawn tube)
1.Better shape
2.Improved quality surface
3.Tight Excentricity and wall thickness tolerances (the eccentric
4.Tube more safety
5.Good toughness at low temperature
6.USA Market: 90% of the cylinder in the USA market are produced with welded tubes
7.Cost fix Lengths More Cheaper
Packaging:
Seaworthy plywooden case packaging
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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