... SAE8620,European Standard:42CrMo4,25CrMo4,34CrNiMo6,39CrNiMo3,17NiCrMo6,18CrNiMo7-6,S355J2G3,ASTM A105,ST52-3,16MnCr5,20MnCr5,16MnCrS5,20MnCrS5,21CrMoV511, ... RT diameter tolerance:-0/+3 mmGrain size: as per ASTM E112-96 Grade 5 or finer for normalized/annealed/ ... ,CGXYSTEELMaterial GradeStainless steel, Alloy steel, Carbon steel. StandardANSI/ASTM/SUS/GB/DIN/EN/BSDiameterfrom 4mm to 500mmLength12m,11.8m ...