Verified Company
Zhangjiagang Huadian Import & Export Co., Ltd.
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4140|42CrMo cold drawn seamless precision carbon and alloy mechanical tubing
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
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 |
Features
| Size | Outer diameter:3-114mm Wall thickness:0.5-10mm Length:max13400mm,generally 6000mm or so,can be cut shorter as per your need |
| Application | Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services. Seamless steel pipes for low and medium pressure boiler, high pressure boiler, ship-building,Liquid service, petroleum cracking, chemical fertilizer equipment,Drawing-oil-equipment and structure purposes. |
| Business scope | DIN series cold drawn precision seamless steel tubes DIN series cold rolled precision seamless steel tubes Related coated and galvanized steel tubes Rustproof phosphyorylated tube |
| Main characteric | No Oxidation Layer on the outer and inner walls; No Leakage under high pressure; No Crake under flating and flattening; No distortion after cold bending; High precision high cleanness; Excellent brightness cold drawn and hot finished Superior performance for high pressure and temperature uses Black finish and hot dip galvanized Excellent corrosion resistance |
Application
For mechanical engineering,mechanical and pressure use,and also for transporting steam,water,gas and etc.
Chemical composition
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| 1008 | ≤0.10 | 0.30-0.50 | 0.040 | 0.050 | - | - | - |
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.040 | 0.050 | - | - | - |
| 1018 | 0.15-0.20 | 0.60-0.90 | 0.040 | 0.050 | - | - | - |
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.040 | 0.050 | - | - | - |
| 1025 | 0.22-0.28 | 0.30-0.60 | 0.040 | 0.050 | - | - | - |
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.040 | 0.050 | - | - | - |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.35 |
Mechanicl properties
| Grade | Condition | MPa Tenslle Point | Yield Point | Elongation |
|---|---|---|---|---|
| 1020 | CW | ≥414 | ≥483 | ≥5% |
| SR | ≥345 | ≥448 | ≥10% | |
| A | ≥193 | ≥331 | ≥30% | |
| N | ≥234 | ≥379 | ≥22% | |
| 1025 | CW | ≥448 | ≥517 | ≥5% |
| SR | ≥379 | ≥483 | ≥8% | |
| A | ≥207 | ≥365 | ≥25% | |
| N | ≥248 | ≥379 | ≥22% | |
| 4130 | SR | ≥586 | ≥724 | ≥10% |
| A | ≥379 | ≥517 | ≥30% | |
| N | ≥414 | ≥621 | ≥20% | |
| 4140 | SR | ≥689 | ≥855 | ≥10% |
| A | ≥414 | ≥552 | ≥25% | |
| N | ≥621 | ≥855 | ≥20% |