15-5 PH ibyuma bitagira umuyonga ni martensitike yimvura-ikomera ibyuma bitagira umuyonga hamwe na Chromium hafi 15% na Nickel 5%. Ifite imbaraga nyinshi, gukomera cyane, hamwe no kurwanya ruswa. Imbaraga zirashobora kwiyongera hamwe no kuvura ubushyuhe buke. Ugereranije na 17-4 PH, itanga uburyo bwiza bwo guhinduranya gukomera no guhindagurika; ibikoresho byiza bya mashini mubice binini byambukiranya, hamwe no guhimbwa neza. Biroroshye gusudwa. Irashobora gutunganyirizwa muri kimwe muri byinshi byubushyuhe buboneka kuriyi ntera.