Yosun (Tianjin) Piping Engineering Co., Ltd. is one of the most credible manufacturers and suppliers of high pressure boiler alloy pipe in China. Please feel free to wholesale customized high pressure boiler alloy pipe at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
High-pressure boiler tubes should be resistant to high temperature and high pressure corrosion, common materials are carbon steel tubes, alloy steel tubes, stainless steel tubes and high-temperature alloy tubes. When selecting, it is necessary to consider the material performance, cost and operating environment comprehensively to ensure the safe operation and long-term use of the boiler.
Characteristics
High pressure boiler steel pipe: It is mainly used to manufacture high-quality carbon structural steel, alloy structural steel and stainless heat-resistant steel seamless steel pipes for steam boiler pipes with high pressure and above pressure. These boiler tubes often work at high temperature and high pressure, and oxidation and corrosion occur under the action of high temperature flue gas and water steam, so the steel tubes are required to have high durable strength and high oxidation resistance. And has good organizational stability, the use of steel numbers are: high-quality carbon structural steel numbers 20G, 20MnG, 25MnG; Alloy structural steel No. 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc. Rust heat-resistant steel commonly used 1Cr18Ni9, 1Cr18Ni11Nb high-pressure boiler tubes in addition to ensuring chemical composition and mechanical properties, to do hydraulic test one by one, to do flaring, flattening test. Steel pipes are delivered in heat-treated condition. In addition, there are also certain requirements for the microstructure, grain size and decarburization layer of the finished steel pipe.
Common Steel Grades
The steel grades adopted include: high-quality carbon structural steel grades such as 20g, 20mng, and 25mng; alloy structural steel grades like 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, and 12cr3movsitib; and common rust-resistant heat-resistant steel grades such as 1cr18ni9 and 1cr18ni11nb. In addition to ensuring the chemical composition and mechanical properties, high-pressure boiler tubes must undergo water pressure tests on a per-piece basis, as well as flaring and flattening tests. The steel pipes are delivered in a heat-treated state.
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