Seamless Carbon Steel Pipe Standard: API 5CT , API 5L , ASTM A106, ASTM A53 Material: P110.K55.L80.N80.J55, X56.X42, GR.B, GR. Seamless Carbon Steel Pipe 1. Standard: API 5CT, A PI 5L, API 5L X42. ASTM A106 B, ASTM A53 B2. Grade: K55.J55.N80-1, P110, B, A3. O.D: 1/2" TO 12"4. W.T: SCH10-SCH1605. Length: upon your requests( 5.8M- 12.2M)6. Package: coated oil, beveled(2" to 12"), plain ends(1/2" to ...