JIANGSU HAOHUA INDUSTRY GROUP

ASTM A213  T22 Large diamete alloy seamless steel pipe 

Size Range：OD 16"~48" , WT 15.88mm~150mm
Type of End-Finish：PE
Coating :Polished with Lightly oiled,varnish paint 
Packing:Metal protecting ring in both ends, Wrapped in waterproof paper and sackcloth with several steel strips
Mill Test Certificate:EN 10204/3.1B

Specification

Operative Standard & Grade：
ASTM A333,ASTM A334,ASTM A335, Gr.P1,P2,P11,P22,P23,P5,P9,P91
DIN 1775 Gr.St35.8／III、St45.8／III、15Mo3、10CrMo910 etc
EN 10210, EN 10219, BS 1387 : Gr. S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44,ST52
EN10216-2：P195GH、P235GH、P265GH、16Mo3、10CrMo5-5、13CrMo4—5、10CrMo9-10、X10CrMoVNb9-1 etc.
BS3059 PART1 GR.HFS320,CFS320,ERW320,CEW320,HFS320,CFS320,ERW320,CEW320
JIS G 3461：STB41 0、STB510 etc.
JIS G 3462：STBAl 2、STBA22、STBA24 etc.
GOST 8732-78 Seamless hot-deformed steel tubes. Range. 
GOST 9940-72 Seamless hot deformed tubes made of corrosion resistant steel.

USAGE:super-heaters，re-heaters，water wall．economizer in large-scale power plant