1.4028, X30Cr13, QT800, Martensitic Stainless steelmax2020-09-10T16:35:27+09:009월 10th, 2020| 1.4028 +QT800 강재인 경우 furnace components, shafts, fasteners, compressor valves 용도이고, UNS S42000 재질과 대응되며, 13% Chromium 합금입니다.