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Alloy steel pipe is mainly used in power plant, nuclear power plant, high pressure boiler, high temperature superheater and reheater, etc.
Folding Brief
Alloy steel pipe in English (Alloy steel pipe) the greatest advantage can be 100% recovery, in line with the national strategy of environmental protection, energy saving, resource saving, national policy to encourage the expansion of high-pressure alloy pipe applications. At present, the proportion of alloy pipe consumption in total steel in China is only half of that in developed countries, and the expansion of alloy pipe use field provides a broader space for the development of the industry. According to the research of the expert group of the alloy pipe branch of China Special Steel Association, the demand for high pressure alloy pipe long material in China will increase by 10-12% per year in the future. Alloy pipe is defined by steel pipe according to production material (that is, material), as the name implies is alloy pipe, and seamless pipe is defined by steel pipe according to production process (seamless), which is different from seamless pipe is sewn pipe. Including straight seam welded pipe and spiral pipe.
ASTM A335 P22 Alloy Steel Tube, DN25, SCH 80, Hydraulic Cold Drawn, Cold Rolled, Boiler.
Introduction to Alloy Steel Pipe
The biggest advantage of alloy steel pipe can be recovered 100%, which accords with the national strategy of environmental protection, energy saving and resource saving. The national policy encourages the expansion of the application field of high pressure alloy pipe. At present, the proportion of alloy pipe consumption in total steel in China is only half of that in developed countries, and the expansion of alloy pipe use field provides a broader space for the development of the industry. According to the research of the expert group of the alloy pipe branch of China Special Steel Association, the demand for high pressure alloy pipe long material in China will increase by 10-12% per year in the future. Alloy pipe is defined by steel pipe according to production material (that is, material), as the name implies is alloy pipe, and seamless pipe is defined by steel pipe according to production process (seamless), which is different from seamless pipe is sewn pipe. Including straight seam welded pipe and spiral pipe.
| standard | the name of a shop | tensile strength (MPa) | Yield strength (MPa) | (%) of elongation | hardness |
| GB3087 | 10 | 335～475 | ≥195 | ≥24 | / |
| 20 | 410～550 | ≥245 | ≥20 | / | |
| 20G | 410～550 | ≥245 | ≥24 | / | |
| 20MnG | ≥415 | ≥240 | ≥22 | / | |
| 25MnG | ≥485 | ≥275 | ≥20 | / | |
| 440～640 | ≥235 | ≥21 | / | ||
| 12Cr2MoG | 450～600 | ≥280 | ≥20 | / | |
| 470～640 | ≥255 | ≥21 | / | ||
| 540～735 | ≥345 | ≥18 | / | ||
| ≥585 | ≥415 | ≥20 | / | ||
| ASME SA210 | SA210A-1 | ≥415 | ≥255 | ≥30 | ≤143HB |
| SA210C | ≥485 | ≥275 | ≥30 | ≤179HB | |
| ASME SA213 | SA213 T11 | ≥415 | ≥205 | ≥30 | ≤163HB |
| SA213 T12 | ≥415 | ≥220 | ≥30 | ≤163HB | |
| SA213 T22 | ≥415 | ≥205 | ≥30 | ≤163HB | |
| SA213 T23 | ≥510 | ≥400 | ≥20 | ≤220HB | |
| SA213 T91 | ≥585 | ≥415 | ≥20 | ≤250HB | |
| SA213 T92 | ≥620 | ≥440 | ≥20 | ≤250HB | |
| DIN17175 | ST45.8/Ⅲ | 410～530 | ≥255 | ≥21 | / |
| 15Mo3 | 450～600 | ≥270 | ≥22 | ||
| 13CrMo44 | 440～590 | ≥290 | ≥22 | / | |
| 480～630 | ≥280 | ≥20 | / |
