ASTM A106 GR. A/B/C, A53 GR. B, API 5L GRADE B, API 5L GR. X42 / 46/ 52/ 56/ 60/ 65/ 70, A333 GR. 3 GR. 6, IS 1239 PART I (BLACK & GALVANISED), IS 3589 (BLACK GR 330 & GR410) etc.ALLOY STEEL:
ASTM A106 GR. A/B/C, A53 GR. B, API 5L GRADE B, API 5L GR. X42 / 46/ 52/ 56/ 60/ 65/ 70, A333 GR. 3 GR. 6, IS 1239 PART I (BLACK & GALVANISED), IS 3589 (BLACK GR 330 & GR410) etc.ALLOY STEEL: