astm a 106 grade b carbon steel pipe 10#, 20#, 45#, 16Mn, Q235, Q345, Q195 O.D ... .: 20-508mm W.T.:1.8-100mm or more precision astm a 106 ... 45#, 16Mn, Q235, Q345, Q1952) Standards: ASTM A53, ASTM A106, API 5L, APL 5CT, ASTM A519, and ASTM A213/A213M3) Certification: ISO9001 ... required7) Suitable for high pressure, anti-corrosion and long distance conveyance of gas/fluid8)Application: ...