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Zhangjiagang Huadian Import & Export Co., Ltd.
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cold drawn seamless steel pipes for precision application
Hi,this is maria,thanks very much for your interesting to our products,If you want such steel tubes and pipes,or the standard is not listed above,pls do not hesitate to contact me at once.pls tell me,it's my honor to service you!
Tel:+86-18921988727
Tube according to EN10305-1 are characterized by having precisely defined tolerance on dimensions and a specified surface roughness.Typical fields of application are vehicles,furnitures and general engineering industry.
Delivery conditions
| Designation | Symbol | Description |
| Cold Drawn/hard | +C | Not heat treatment after the final cold drawing process |
| Cold Drawn/soft | +LC | After the final heat treatment there is a suitable drawing pass |
| Cold Drawn and Stress Relieved | +SR | After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere |
| Annealed | +A | After the final cold drawing process the tubes are annealed in a controlled atmosphere |
| Normalized | +N | After the final cold drawing operation the tubes are normalized in a controlled atmosphere |
Chemical Composition(Cast Analysis)
| Steel Grade | % by mass | ||||||
| Steel Name | Steel Number | C max | Si max | Mn max | 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 | - |
Mechanical Properties at room temperature
| Steel Grade | Minimun Values for the delivery condition | ||||||||||
| +C | +LC | +SR | +A | +N | |||||||
| Steel Name | Rm MPa | A % | Rm MPa | A % | Rm MPa | A % | Rm MPa | A % | Rm MPa | RchMPa | A % |
| E215 | 430 | 8 | 350 | 12 | 380 | 16 | 280 | 30 | 290-430 | 215 | 30 |
| E235 | 480 | 6 | 420 | 10 | 420 | 16 | 315 | 25 | 340-480 | 255 | 25 |
| E355 | 640 | 4 | 550 | 7 | 580 | 10 | 450 | 22 | 490-630 | 355 | 22 |
Zhangjiagang Huadian Import & Export Co., Ltd is a company based in China, we have two factories, one factory manufactures steel tubes and the other factory produces power station equipment.
Jiangsu Dehai Group (Parent Company) | |
Zhangjiagang Huadian Im &Ex Co., Ltd (Subsidiary) | |
Zhangjiagang Huagang IndustrialCo.,Ltd (Factory)
| Specializes in the production of cold-drawn/cold-rolled precision seamless steel tubes,such as bright oil tubes etc. |
Zhangjiagang Huadian Power Equipment Co.,Ltd (Factory) | A manufacturer of power station boiler, industrial boiler, waste heat boiler, refusefired boiler, biomass boiler and the correlated pressure parts integrating the design, manufacture, installation, repair and maintance |
Other Test
1.Hydrostatic or Nondestructive Electric Test
2.Heat Treatment: according to Standard
3.Surface Condition:According to Standard.
4.Grain Size:According to standard
5.Sampling:flattening,flaring,grain size,Marking
Quality wins the market ,science & technology creates the future
We will touch clients’ hearts with our specialized technology; technology and innovation are our actual power to go ahead, they drive us to find the answers before questioned by our clients; the good quality is our core volume; we take our advanced technology as our core competitiveness, and it is also the generator of developing our brand.
Jiangsu Dehai Group(Parent Company) | |
| Zhangjiagang Huadian Im &Ex Co., Ltd |
Enterprise Purpose | Providing you with the best solutions of high –quality precision seamless steel pipe |
| ISO9001:2000; TS16949 |
Main Produce Standard | GB; ASTM ; DIN; |
Address | Zhangjiagang(not far from Shanghai, Suzhou; Wuxi) |