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Zhangjiagang Huadian Import & Export Co., Ltd.
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4140 seamless precision cold drawn steel pipe
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
Seamless Tubing sizes used in the oil and gas industry for above ground and down hole applications. A519-4140 material is stocked in the annealed, normalized or quenched and tempered conditions. The heat treated material is controlled to L80, P110, Q125 or the customer’s specified properties. The material is weldable but requires a pre-heat before welding.
American Piping Products Inc. 4140 Tubing:
A519-4140
L80, P110, Q125 heat treated mechanicals
2.5 to 15” OD
.375” to 4.000”
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 |
Chemical composition(%)
| 4130 | 4140 | 4142 | |
| Carbon max. % | 0.28 - 0.33 | 0.38 - 0.43 | 0.40 - 0.45 |
| Manganese % | 0.40 - 0.60 | 0.75 - 1.00 | 0.75 - 1.00 |
| Phosphorous, max. % | 0.04 | 0.04 | 0.04 |
| Sulfur, max. % | 0.04 | 0.04 | 0.04 |
| Silicon, min.% | 0.15 - 0.35 | 0.15 - 0.35 | 0.15 - 0.35 |
| Chrome, max. % | 0.80 - 1.10 | 0.80 - 1.10 | 0.80 - 1.10 |
| Molybdenum, max. % | 0.15 - 0.25 |
Mechanical Properties
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.
| Mechanicals | Heat Condition | Hardness | Yield | Tensile |
| A519-4130 / 4140 | Quenched and Tempered | 28-32 RC | Not Tested | Not Tested |
| API 5CT L80 in 4519-4100 | Quenched and Tempered | 18-22 RC | 80 - 95 ksi | 95 ksi min |
| API 5CT P110 in 4519-4100 | Quenched and Tempered | 30-36 RC | 110 - 140 ksi | 125 ksi min |
| API 5CT Q125 in 4519-4100 | Quenched and Tempered | 32-36 RC | 125 - 150 ksi | 135 ksi min |
Heat conditions
| Condition | Grade | Medium |
| Annealed | A519-4130 CD | Air |
| Annealed or Normalized | A519-4130 / A519-4140 | Air |
| Quenched and Tempered | A519-4130 | Water |
| Quenched and Tempered | A519-4140 | Polymer or Oil |
| Quenched and Tempered | A519-4142 | Oil |
Tolerances
| Condition | OD | Wall |
| Annealed or Normalized | ASTM A519 | ASTM A519 |
| Quenched and Tempered | +/-1% | +/-12.5% |
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 |
Target Market | Southeast Asia; Mid East ;South America; Eastern Asia, etc |
| ISO9001:2000; TS16949 |
Main Produce Standard | GB; ASTM ; DIN; |
Address | Zhangjiagang(not far from Shanghai, Suzhou; Wuxi) |