... API 5L 2 Internal coating of line pipe for non-corrosive gas transmission service ASTM A519 50B40 50B44 50B46 50B50 50B60 ... 3, Grade 4,Grade 6, Grade 7, Grade 8,Grade 9, Grade 10, Grade 11ASTM A334 Grade 1, Grade 3, Grade ... 6,Grade 7, Grade 8Grade 9, Grade 11ASTM A335 P1, P2, P5, P5b, P5c, P9, ... API 5L 2 Internal coating of line pipe for non-corrosive gas transmission service