Boiler pipe
main steel
20G、15CrMoG、12Cr2MoG、12Cr5MoG、12Cr9MoG、T11、T22、T5、T22、T9、T91
production standard
GB5310《seamless steel tube for high-pressure boiler》
ASME SA213《Seamless ferrite and austenitic alloy steel tube for boiler, super heater and heat exchanger》