... ASTM A106 GR. B & C/ ASTM A53 GR. B & C/, ASTM A333 GR. 3/6 & API-5L-GR. B/X42/X46/X52/X60/X65/X75 & ASTM A 671 / 672 GR ... equipment.9) Standard: Seamless – ASTM A106, API 5L, ASTM A179, , ASTM A53, ASTM A192, ASTM A333 Welded – API 5L, ASTM A53,ASTM A671/ A672. High yield Grade: ... X42, X46, X52, X56, X60, X65, X70, X80, PSL 1,2.High temp grade: A, B ...