The materials of boiler steel tubes are mainly: 20G, 20MnG, 25MnG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNbN, SA210A1, SA210C, A213 T11, A213 T12, A213 T22, A213 T23, SA213 T91, SA213 T92, ST45.8, 15Mo3, 13CrMo44, 10CrMo910, etc.

According to different executive standards of boiler steel tubes, the application is also different:
GB 3087 - Seamless steel tubes for low and medium pressure boilers.
GB 5310 - Seamless steel tubes and pipes for high pressure boilers.
ASME SA179 - Specification for seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes
ASME SA192 - Specification for seamless carbon steel boiler tubes for high-pressure service
ASME SA210 - Specification for seamless medium-carbon steel boiler and superheater tubes
ASME SA213 - Specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes
ASME SA335 - Specification for seamless ferritic alloy-steel pipe for high temperature service
DIN 17175 - Heat-resisting seamless steel tube