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Brief introduction of boiler seamless steel pipe

Mainly discuss the boiler seamless steel pipe, including the Low medium pressure boiler seamless steel pipe and high pressure boiler seamless steel pipe.

Boiler seamless steel pipe

Low medium pressure boiler seamless steel pipe: used in the manufacture of all kinds of low intermediate pressure boiler, superheated steam pipe, water pipe, water wall tube and locomotive boiler superheated steam pipe, Big chimney pipe, small Big chimney pipe and arch brick tube, etc. With the high quality carbon structural steel hot rolled or cold rolled seamless steel pipe. Mainly use 10 and 20 # steel to manufacture, in addition to guarantee the chemical composition and mechanical properties, water pressure test, coiling edge, flaring, flattening test are all required. Hot rolled pipe is delivered in hot rolled state, and cold rolled (dial) pipe is delivered in heat treatment state.

High pressure boiler seamless steel pipe: mainly used in the manufacture of high pressure and over pressure steam boiler pipes with high quality carbon structural steel, alloy steel and stainless heat resistant steel. These boiler pipes are often working under high temperature and high pressure, and shall generate oxidation and corrosion in the action of high temperature flue gas and steam, so the steel pipe are required with high rupture strength, high oxidation resistance, and have good organizational stability. The steel grade adopted are: high quality carbon structural steel grade 20G, 20 MnG, 25 MnG;structural alloy steel grade 15 MoG, 20MoG, 12CrMoG, 15 CrMoG, 12 Cr2MoG, 12 CrMoVG, 12 Cr3MoVSiTiB, etc;stainless heat resistant steel grade 1Cr18Ni9, 1Cr18Ni11Nb.
In addition to guarantee the chemical composition and mechanical properties, hydrostatic test one by one, flaring, flattening test are all required. Steel tube is delivered with heat treatment state. What's more, there are certain requirements for the microstructureScience Articles, grain size and decarburization layer of finished steel pipe.

Article Tags: Boiler Seamless Steel, Seamless Steel Pipe, High Quality Carbon, Quality Carbon Structural, Carbon Structural Steel, Boiler Seamless, Seamless Steel, Steel Pipe, Pressure Boiler, High Quality, Quality Carbon, Carbon Structural, Structural Steel, High Pressure, Steel Grade

Source: Free Articles from ArticlesFactory.com

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