Material
20#, Q345
Standard
API 5L B, ASTM A106 GR.B, ASTM A53 GR.B, High-pressure boiler pipe GB5310 - 2009, Special pipe for fertilizer making GB 6479 - 2013, pipe for petroleum cracking FB 9948 -2013, low -and medium -pressure boiler pipe GB 3087 -2008, structural pipe GB/TB 8162 - 2008 and hydraulic support pipe GB/T 17396 - 2009.