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ASTM A139 electric resistance welded steel pipe
This specification covers five grades of electric -fusion (arc)-welded straight-seam or spiral-seam steel pipe in NPS 4 to 92
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of astm a139 electric resistance welded steel pipe in China, featured by quality products and low price. If you're going to wholesale durable astm a139 electric resistance welded steel pipe made in China, welcome to get pricelist and free sample from our factory.
1.Chemical Requirements
| Element | composition max % | ||||
| Grade A | Grade B | Grade C | Grade D | Grade E | |
| Carbon | - | 0.30 | 0.30 | 0.30 | 0.30 |
| Manganese | 1.00 | 1.00 | 1.20 | 1.30 | 1.40 |
| Phosphorus | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
| Sulfur | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
2.Tensile Requirements
Grade A | Grade B | Grade C | Grade D | Grade E | |
| Tensile strength min MPA | 331 | 414 | 414 | 414 | 455 |
| Yield strength min MPA | 207 | 241 | 290 | 317 | 359 |
Elongation min% | 35 | 30 | 25 | 23 | 22 |
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