... STD),Website:http://www.petrosteels.com, Extra Heavy (XH), 100, 120, 160, XXHASTM A 333 Gr. 3 Low Temperature Pipes Grade and ... Chemical Composition StandardGradeChemical Composition (%)CSiMnPSCrNiCuMoVAlASTM A 333 Gr. 3 Low Temperature PipesGrade 3≤0.190. ... packaging and prompt delivery of the ordered consignment. ASTM A 333 Gr. 3 Low Temperature Pipes come with imprints ...