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27SiMn Precision Low Alloy Thin Wall Carbon Steel Tube

27SiMn Precision Low Alloy Thin Wall Carbon Steel Tube

Alloy steel tube introduction: Alloy steel pipe is mainly used for power plant, nuclear power, high pressure boiler pipe, high temperature and high pressure high temperature superheater and reheater and so on and equipment, it is made of high quality carbon steel, alloy steel and stainless steel...

Alloy steel tube introduction:
Alloy steel pipe is mainly used for power plant, nuclear power, high pressure boiler pipe, high temperature and high pressure high temperature superheater and reheater and so on and equipment, it is made of high quality carbon steel, alloy steel and stainless steel material, the hot-rolled (extrusion, expansion) or cold rolling (drawing) and so on.


Alloy Steel Pipes Advantages:
Alloy steel pipe in English (Alloy steel pipe) the biggest advantage can be recycled 100%, in line with environmental protection, energy saving, resource saving national strategy, national policy to encourage the expansion of high pressure alloy tube application field. At present, China's alloy pipe consumption accounts for only half of the total amount of steel products, and the use of alloy tube expands to provide a broader space for the development of the industry. According to the research branch of the expert group of the association of special steel in China China alloy tube, high-pressure alloy material length up to 10-12% average annual growth in demand for the future. Alloy pipe is a steel pipe according to the production materials (or material) to define the definition is made of alloy pipe and seamless steel pipe; is in accordance with the production process (seamed seamless) defined, is different from the seamless pipe joints, including welded pipe and spiral tube.


Alloy tube material:
16-50Mn, 27SiMn, 40Cr, 12-42CrMo 16Mn12Cr1MoV, T91 27SiMn 30CrMo 15CrMo Cr9Mo 10CrMo910 15Mo3 15CrMoV 35CrMoV 20G 45CrMo, 15CrMoG, 12CrMoV, 45Cr, 50Cr, 45CrNiMo etc.


Quenching and tempering process of alloy steel pipe:
The invention discloses a tempering process of alloy steel pipe, alloy steel, Quenched and tempered by its high strength, high hardness, good abrasion resistance, strong plasticity, high pressure, small deformation, decarburization, which comprises the following steps: 1) annealing: 20-25 C / min speed heated to 870-880 DEG C, heat 35-40 minutes, and then cooled to 500 DEG C; 2) quenching: 5-10 C / min speed heating to 930-935 deg.c, heat 50-60 minutes, and then, after the 190-200 C / s speed rapidly cooled to 320-325 DEG C, cooled to 30-40 DEG C; 3): tempering at 5-10 Deg. C / min speed heating to 500-510 deg.c, heat 230-240 minutes, and then cooled to room temperature. The quenched and tempered alloy steel tube has the advantages of high strength, high hardness, good wear resistance, strong plasticity, large pressure, small deformation and small decarburization. The invention is mainly used for quenching and tempering of alloy steel tubes for hydraulic cylinder tubes.




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