API 5L GRB Seamless steel pipe for different sizes

Boiler Seamless Pipe Application Introduction Specially provided by 51 steel pipe net 1 General boiler seamless pipe is mainly used to manufacture water wall pipe, boiling water pipe, superheated steam pipe, superheated steam pipe for locomotive boiler, large and small smoke pipe and arch Brick tube and so on.
2 The high-pressure boiler seamless pipe is mainly used to manufacture superheater tubes, reheater tubes, air tubes, and main steam tubes of high-pressure and ultra-high-pressure boilers.
3GB3087-82 "Seamless boiler for low and medium pressure boilers" and GB5310-95 "high pressure boiler seamless steel pipe" provisions. Appearance quality: No cracks, folds, pleats, scabs, delaminations, and hair lines are allowed on the inner and outer surfaces of steel tubes. These defects should be completely removed. The depth of clearance shall not exceed the negative deviation of the nominal wall thickness, and the actual wall thickness at the cleaning site shall not be less than the minimum allowed by the wall thickness.
Boiler seamless management theory weight calculation method: (outer diameter - wall thickness) * wall thickness * 0.02466
Information comes from.