The material selection of seamless boiler tubes is crucial to the safe operation of boilers. Due to the harsh working environment of boilers, high performance requirements for materials are required, so boiler tubes are generally made of high-quality carbon steel, alloy steel or stainless steel. How long is the life of seamless boiler tubes? The life of boiler tubes is related to factors such as material, working environment, maintenance, etc., and can generally reach more than 10 years.
Common materials for seamless boiler tubes
Carbon Steel: The price is relatively low and it has good plasticity and weldability. It is mainly used for superheater tubes, boiling water tubes, etc. of low-pressure boilers. Representative materials are 20G, Q345B, etc.
Alloy steel: It has high strength, high temperature resistance and good corrosion resistance, and is suitable for high-pressure boilers. Such as 15CrMoG, 12Cr1MoVG, etc., which have good high temperature strength and oxidation resistance. Such as 12Cr2MoWVTiB, etc., which have higher strength and heat resistance.
Stainless steel: It has strong corrosion resistance and is suitable for corrosive media environments. It is mainly used in boilers under special working conditions, such as seawater boilers. Representative materials are 304, 316L, etc.
Considerations for selecting boiler tube materials
Boiler working pressure and temperature: The higher the pressure and temperature, the higher the requirements for material strength and high temperature resistance.
Corrosiveness of the medium: If the medium is highly corrosive, it is necessary to choose stainless steel materials with good corrosion resistance.
Structural form of the boiler: Boilers of different structural forms have different requirements for materials.
Common boiler tube standards
GB/T 5310-2017: Seamless steel tubes for high-pressure boilers
GB/T 3087-2017: Seamless steel tubes for low- and medium-pressure boilers
ASME SA210: Seamless carbon steel tubes for boilers and superheaters
ASME SA213: Seamless ferrite and austenitic alloy tubes for boilers, superheaters and heat exchangers
Conclusion
The material selection of seamless boiler tubes is a systematic project, which requires comprehensive consideration of factors such as the working conditions and economic efficiency of the boiler. It is recommended to consult a professional boiler manufacturer or material supplier when selecting the material of the boiler tube to ensure that the selected steel tube can meet the safe and reliable operation of the boiler.
The material selection of seamless boiler tubes depends on the working conditions of the boiler, including temperature, pressure and corrosiveness of the medium. Common materials such as 20G and 20MnG are suitable for medium and low pressure boilers, while alloy steels such as 15MoG, 12CrMoG, 15CrMoG are suitable for high and ultra-high pressure boilers. Stainless steel materials such as 1Cr18Ni9 and 1Cr18Ni11Nb are suitable for corrosive environments. Each material has its specific performance and application range. Choosing the right material is crucial to ensure the safe operation and extended service life of the boiler.
Read more： Introduction of Seamless Boiler Tubes
Common materials for seamless boiler tubes
Carbon Steel: The price is relatively low and it has good plasticity and weldability. It is mainly used for superheater tubes, boiling water tubes, etc. of low-pressure boilers. Representative materials are 20G, Q345B, etc.
Alloy steel: It has high strength, high temperature resistance and good corrosion resistance, and is suitable for high-pressure boilers. Such as 15CrMoG, 12Cr1MoVG, etc., which have good high temperature strength and oxidation resistance. Such as 12Cr2MoWVTiB, etc., which have higher strength and heat resistance.
Stainless steel: It has strong corrosion resistance and is suitable for corrosive media environments. It is mainly used in boilers under special working conditions, such as seawater boilers. Representative materials are 304, 316L, etc.
Considerations for selecting boiler tube materials
Boiler working pressure and temperature: The higher the pressure and temperature, the higher the requirements for material strength and high temperature resistance.
Corrosiveness of the medium: If the medium is highly corrosive, it is necessary to choose stainless steel materials with good corrosion resistance.
Structural form of the boiler: Boilers of different structural forms have different requirements for materials.
Common boiler tube standards
GB/T 5310-2017: Seamless steel tubes for high-pressure boilers
GB/T 3087-2017: Seamless steel tubes for low- and medium-pressure boilers
ASME SA210: Seamless carbon steel tubes for boilers and superheaters
ASME SA213: Seamless ferrite and austenitic alloy tubes for boilers, superheaters and heat exchangers
Conclusion
The material selection of seamless boiler tubes is a systematic project, which requires comprehensive consideration of factors such as the working conditions and economic efficiency of the boiler. It is recommended to consult a professional boiler manufacturer or material supplier when selecting the material of the boiler tube to ensure that the selected steel tube can meet the safe and reliable operation of the boiler.
The material selection of seamless boiler tubes depends on the working conditions of the boiler, including temperature, pressure and corrosiveness of the medium. Common materials such as 20G and 20MnG are suitable for medium and low pressure boilers, while alloy steels such as 15MoG, 12CrMoG, 15CrMoG are suitable for high and ultra-high pressure boilers. Stainless steel materials such as 1Cr18Ni9 and 1Cr18Ni11Nb are suitable for corrosive environments. Each material has its specific performance and application range. Choosing the right material is crucial to ensure the safe operation and extended service life of the boiler.
Read more： Introduction of Seamless Boiler Tubes
