material: 10#

standards: JIS G3454, JIS3456, JIS3455, ASTM A106-A,ASTM A179-C, DIN17175,DIN1629-4 and so on

outside diameter:13.7-610mm

wall thickness: ach40,ach80,ach160 and so on

certifications:

          1) ISO 9001:2000international quality system certification in2004;

          2)API certification os the USA in2008

application: It is usually used in over-heat pipe for low- and  mediun- pressure boilers, boiling water pipe and locomotive smoke pipe(big and small).