ASME SA335 P91 steel pipe  

Steel Grade: P91 Out Diameter: 219-1422 mm ( 8"-56"), tolerance: ±1% Wall Thickness: 9.53-140mm Length: 6-11.8Meter Seamless steel pipe Surface: bare, black varnish or light oiled Pipe End: Plain or Beveled (Can be Protected By Plastic Pipe Cap)  NDE: UT, ET or Hydraulic testing Straightness: WT＜30mm, not more than 2mm per meter             WT≥30mm, not more than 3mm per meter Others: According ASME SA335 standard Yangzhou Chengde (YC) is one of the best steel pipe manufacturers in the world, and the production diameter from 8" to 48" in OD and wall thickness from 9.53 mm up to 140mm. We can produce the boiler steel pipe and thermal power steel pipe according to the ASTM A335 and ASME SA335 standards. In recently 10 years, we have been exported about 300000 tons P11, P12, P22, P91, P92  P5, P9 and P36 steel pipe to India, Japan, Korea, So…