specification of hot rolled seamless steel pipe
[belle-alan@hotmail.com]

Production standard: GB/T8162-2008, GB/T8163-2008, GB/T5310-2008, GB/T3087-2008 ASTM, A53, A500, A106  
Steel grade: 20#, Q345B 45#, GR.B

Note:
The hot rolled seamless steel pipe is applied in accordance with the specific circumstance of each customer. For fear of rusting in the long time ocean shipping, the exporting pipe is required to paint the antirust paint, normally, the paint is black.