فروش داغ ams 5643 بادوام
AMS 5643 & UNS S17400 & 17-4PH Martensitic Steel. AMS 5643 is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings. Technical Standard: AMS 5643 Equivalent DIN ASTM AISI UNS JIS Other 1.4542 X5CrNiCuNb16-4 Grade 630 630 S17400 17-4PH