... pipes Seamless Line Pipes, API SPEC 5L Standard X42 X46 X52 X56 Process method: cold drawn, cold rolled, and hot rolledSurface finishes: ... anneal, pickling, manual polish, mechanical polish, and coatedGrades: A25, A, B X42 ... , X52, X60, X65, X70, x80, and GrBStandards: ASTM A53, ASTM A106, API 5L, and moreSize: 1/2 to 40 inchesNPS: 1 ...