... sizes above mmThickness0.50mmLengthas customers’ request Tolerancea)Outer Diameter; +/-0.2mmb)Thickness; +/-0.02mmc)Length;+/-5mmSurface180G, 320G, 400G Satin / Hairline400G, 500G, ... , heat treatment, NDT Chemical Composition of MaterialComposition 201202304316430C≤0.15≤0.15≤0.08≤0.08≤0.12Si≤1,00≤1,00≤1,00≤1 ... ≤2.00≤2.00≤1.00P≤0.06≤0.06≤0.045≤0.045≤0.040S≤0.03≤0.03≤0.030≤0.030≤0.030Cr12.5-14.515-1818 ...