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| Production | alloy seamless steel pipe | |||||||||
| Standard | ASTM A210 A-1/C | |||||||||
| Process of manufacture | As-rolled,Heat-treated | |||||||||
| Chemical composition | Steel grade | C(%)≤ | Mn(%) | P(%)≤ | S(%)≤ | Si(%)≥ | ||||
| A-1 | 0.27 | ≤0.93 | 0.035 | 0.035 | 0.1 | |||||
| C | 0.35 | 0.29-1.06 | 0.035 | 0.035 | 0.1 | |||||
| Tensile properties | Steel grade | Yield strength (Mpa) | Tensile strength(Mpa) | |||||||
| A-1 | ≥255 | ≥415 | ||||||||
| C | ≥275 | ≥485 | ||||||||
| Type of length | Fixed ruler and Double ruler | |||||||||
| Application | Boiler and Superheater carbon steel seamless pipe | |||||||||
| Certification | ISO 9001-2002 ISO14001-2004 | |||||||||
| Inspection and Test | Tensile test,Hydrostatic test,Non-destructive inspection and as agreed | |||||||||
| Surface Treatment | Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating or as agreeed | |||||||||
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