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 | E355 |
| Standard | EN10305-2 |
| OD | 6-80mm |
| WT | 0.5-10mm |
| Shape | Round |
| Type | Welded or Seamless |
| Brand Name | Hongbao |
| Model Number | HB-WT-001 |
| Certification | TS16949, ISO9001, OHSAS18001 etc. |
| Place of Origin | Jiangsu, 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 | E355 | Standard | EN10305-2 |
| OD | 6-80mm | WT | 0.5-10mm |
| Shape | Round | Type | Welded or Seamless |
| Brand Name | Hongbao | Model Number | HB-WT-001 |
| Certification | TS16949, ISO9001, OHSAS18001 etc. | Place of Origin | Jiangsu, China |
| High Light | welding round tubing ，cold drawn welded tubes | ||
EN10305-2 E355 WT0.5 Electrolytic Zinc Welded Steel Tube Round Steel Tubing
Description:
With high dimension accuracy and fine surface quality, cold drawn precision steel tubing is suitable for using hydraulic and pneumatic systems. Besides seamless cold drawn tubes, welded cold drawn tubes is also used for cylinder with a smooth surface. BS EN 10305, a series of steel tube specification for precision applications, 10305-2 grade E355 is a ideal material for barrel and cylinder.
Chemical composition comparison:
| Steel Grade | Chemical Composition(%) | ||||||
| Steel name | Steel number | C max | Si max | Mn | P max | S max | Al min |
| E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | - |
| E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | |
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.
Main Date:
Material: E355
Other material aviable: E235
Standard: EN10305-2
Technique: Cold Drawn
Od:6-80
Wt:0.5-10
Delivery Condition:
+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
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
Automobile Parts,Bushing,Sleeving,Fuel Tank;etc,
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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