... .02 Stainless Steel Axle Connection Parts Details: Material 301, 302, 303, 304, 304L, 316, 316L,8620,4140 etc.Surface TreatmentPolishing, Powder coating, Spraying ... and toughnessprovides good corrosion resistanceused for cutlery, valve parts, and surgical instrumentsStainless steel 440Chard after heat treatedgood wear resistancemagneticideal for bearings, valve ...