High pressure boiler seamless tube

High-pressure boiler tube is a seamless steel tube, mainly used to manufacture steam boiler pipes with high pressure and above, such as superheater tubes, reheater tubes, main steam pipes and other key components. Its specifications range from 8-1240×1-200mm, following the Chinese national standards GB3087-2008, GB5310-2008, as well as international standards such as ASME SA210, SA213 and German DIN17175.

This product is made of multiple grades of materials such as 10, 20G, 15CrMoG, 12Cr1MoVG, covering carbon steel and alloy steel categories. The chemical composition and mechanical properties must meet the strength and corrosion resistance requirements under high temperature and high pressure conditions. Its weight can be calculated by the formula (outer diameter-wall thickness) × wall thickness × 0.02466 per meter. The design parameters focus on dimensional accuracy and structural stability. It is suitable for high-load heat exchange systems such as thermal power plants and industrial boilers.

High-pressure boiler tubes are mainly used to manufacture superheaters, reheaters, water-cooled walls, economizers, etc. of supercritical or ultra-supercritical boilers. The steel tubes are required to have high endurance strength, high oxidation and corrosion resistance, and good structural stability.

Main grades or steel grades of American standard high-pressure boiler tubes

Common grades are: SA-179M, SA-192M, SA-209M T1a, SA-210M Gr.C, SA-210M Gr.A1, SA-213M T11, SA-213M T12, SA-213M T22, SA-213M T23, SA-213M T91

Implementation standards

SA-179/SA-179M Seamless cold-drawn low-carbon steel tubes for heat exchangers and condensers

SA-192/SA-192M Seamless carbon steel boiler tubes for high pressure

SA-209/SA-209M Seamless carbon-molybdenum alloy steel tubes for boilers and superheaters

SA-210/SA-210M Seamless medium carbon steel tubes for boilers and superheaters

SA-213/SA-213M Seamless ferrite and austenite alloy steel pipes for boilers, superheaters and heat exchangers

Product features

High-pressure boiler tubes are often used under high temperature and high pressure conditions. Under the action of high-temperature flue gas and water vapor, the tubes will oxidize and corrode. Therefore, high-pressure boiler steel pipes have high lasting strength, high anti-oxidation and corrosion performance, and good structural stability.

Mechanical properties