seamless boiler parts tube grade: A179-C, St35.8, STB30, STBA20, STPA22

                           Seamless Boiler PartsTube for Refinery Service

(1)Steel grade: T1, STF410, STFA12, St35.8, 16Mo5, HFS320, C14;

(2)Standard: ASTM A161, JIS G3467, KS D3587, DIN17175, BS3056, UNI5462;

(3)Specification : OD: 10mm-114.3mm (0.4055"-4.5"), WT: 2mm-22mm (0.0787"-0.8661");

(4)Dimension tolerance: O.D.: +/-0.08mm, W.T.: +/-10%;

(5)Surface: oiled or black painted to prevent rust;

(6)Marking: as per customer's requirement;