Products
Boiler alloy pipe alloy steel seamless pipe stock
| Product name | Material | Standard | Specification | Application |
| Alloy steel pipe | 12Cr1MoVG 12CrMoG 15CrMoG 12Cr2Mo<A335P22> Cr5Mo<A335P5> Cr9Mo<A335P9> 10Cr9Mo1VNb<A335P91> 15NiCuMoNb5<WB36> 12Cr2MoWVTiB |
GB5310-2008 GB6479-2000 GB9948-2006 DIN17175-79 ASTM SA335 ASTM SA213 JISG3467-88 JISG3458-88 |
∮8-1240*1-200 | high temperature, low temperature and corrosion resistance in petrochemical electric boiler industry |
| Low temperature pipe | 16MnDG, 10MnDG, 09DG 09Mn2VDG, 06Ni3MoDG ASTM A333Grade1 ASTM A333Grade3 ASTM A333Grade4 ASTM A333Grade6 ASTM A333Grade7 ASTM A333Grade8 ASTM A333Grade9 ASTM A333Grade10 ASTM A333Grade11 |
GB/T18984-2003 ASTM A333 |
∮8-1240*1-200 | 45 ~-195 low temperature pressure vessel pipe and low temperature heat exchanger pipe |
| High-pressure boiler tube | 20G ASTM SA106B/C ASTM SA210A/C ST45.8-III |
GB5310-1995 ASTM SA106 ASTM SA210 DIN17175-79 |
∮8-1240*1-200 | heat pipe, collecting box and steam pipe of high pressure boiler |
|
10 # 20 # 16Mn |
GB6479-2000 | ∮8-1240*1-200 | chemical equipment and pipelines with working temperature of -40--400 and working pressure of 10-32mpa |
|
10# 20# 16Mn<Q345A.B.C.D.E> |
GB3087-2008 | ∮8-1240*1-200 | making low and medium pressure boiler and locomotive boiler |
| Delivery pipe | 10#, 20# ASTM A106A, B, C, A53A, B 16Mn<Q345A.B.C.D.E> |
GB/T8163-2008 ASTM A106 ASTM A53 |
∮8-1240*1-200 | General seamless steel tube suitable for conveying fluid |
| General structure tube | 10#, 20#, 45#, 27SiMn ASTM A53A,B 16Mn<Q345A, B, C, D, E> |
GB/T8162-2008 GB/T17396-1998 ASTM A53 |
∮8-1240*1-200 | Applicable to general structure, engineering support machining, etc |
Alloy pipe is a kind of seamless steel pipe. Alloy pipe can be divided into seamless pipe for structural use and high pressure heat-resistant Alloy pipe. Different from the production standard and industry of alloy tubes, the mechanical properties of the tubes are changed by annealing and tempering. Achieve the required processing conditions. Its performance is higher than that of the general seamless steel tube, the chemical composition of the alloy tube contains more Cr, high temperature resistance, low temperature resistance, corrosion resistance.There is no alloy composition or few alloy composition in general carbon seamless tube. The reason why the alloy tube is widely used in petroleum, aerospace, chemical industry, electric power, boiler, military industry and other industries is that the mechanical properties of the alloy tube change well and adjust well.
Alloy pipe is mainly used for heating surface pipe of low and medium pressure boiler (working pressure is generally no more than 5.88mpa, working temperature is below 450℃); Used for heating surface pipes, economizers, superheaters, reheaters and pipes for petrochemical industry of high pressure boilers (working pressure is generally above 9.8mpa and working temperature is between 450℃~650℃).
Application
Alloy steel tube is mainly used in power plant, nuclear power plant, high pressure boiler, high temperature superheater, reheater and other high pressure and high temperature pipelines and equipment, it is made of high quality carbon steel, alloy structural steel and stainless heat-resistant steel, after hot rolling (extrusion, expansion) or cold rolling (drawing).
Advantages
It can be 100% recycled, in line with the national strategy of environmental protection, energy conservation and resource conservation. The national policy encourages the expansion of the application field of high pressure alloy pipe.In China, the proportion of alloy pipe consumption in the total steel volume is only half of that in developed countries. The expansion of alloy pipe application field provides a broader space for the development of the industry.According to the research of the expert group of alloy pipe branch of China Special Steel Association, the demand for high pressure alloy pipe in China will increase by 10-12% annually in the future.
