เหล็กกล้าคาร์บอนขนาดเล็กท่อเหล็กขนาด 15mm DIN ST37.2 เป็นท่อสูบน้ำมัน

1.STM A106A, ASTM A 106B, ASTM A 106 C, ASTM A 179, ASTM 192, ASTM A 210A1, ASTM A 53A, ASTM A 53B, ASTM A 178C

2. 10 # 20 # 45 # Q235, Q345, Q195, Q215, Q345C, Q345A

3.ST37, ST37-2, DIN 1629, ST35, DIN 1629 ST45, DIN17175, ST35.8, DIN17175 ST45.8,

DIN17175 19Mn5

201, 202, 301, 304, 304L, 304N, XM21, 304LN, 309S, 310S, 316, 316Ti, 316L, 316N, 316LN,

317, 317L, 321, 329, ETC

16Mn, Q345B, T1, T2, T5, T9, T11, T12, T22, T91, T92, P1, P2, P5, P9, P11, P12, P22, P91, P92, 15CrMO, CR5Mo, 10CrMo910, 12CrMO, 13CrMo44, 30CrMo, A333 GR.1 GR3 GR 6 GR 7 ETC

Gr.B X42, X46, X52, X60, X65, X70, X80, X100, ETC