seamless carbon steel pipe ASTM A106 GR.B 1.Material:A106/A53/Q345B,Etc. 2. ... /2",3/4",11/2",3",4",6",8",10" ASTM A106 B steel pipe 1.Product Name: Seamless Steel Tube ... .4.Grade: 10,20,35,45,Q345,15CrMo,12Cr1MoV,A53A,A53B,SA53A,SA53B Other steel grade can be provided after negotiating ... ability 2000~2500 Tons/month Delivery period 20~40 days ASTM A106 B steel pipe