... API 5L X70 boiler seamless steel pipe1) Standard:API 5L,ASTM 36.10M,A106,A53,DIN 1629,1626,BS,JIS.etc2) Material: ASTM A106/A53,ST37,35, API 5L GR. B ... 60 mm5) Schedule: SCH5-160, STD, XS, XXS etc.6) Technique:Hot Rolled,Cold Drawn,Seamless,ERW,LSAW,SSAW ... for 40' container9) Application:petroleum,gas,chemical,power,shipbuilding,boiler,construction,,metallurgy,etc API 5L X70 boiler seamless steel pipe ...