I-15-5 insimbi engenasici yi-martensitic, i-precipitation-hardening material kunye ne-chromium, i-nickel kunye nobhedu. Ihlala ilukhetho lokuqala kwishishini le-aerospace kwizibophelelo kunye nezixhobo zesakhiwo. Ubume bayo obukhethekileyo bubonelela ukwanda kokuqina kunye nokumelana nokugqwala okungcono kunokwandulelayo, i-17-4 PH. Bobabini ukulawulwa kokubandakanywa kunye nokunciphisa inani le-delta ferrite xa kuthelekiswa ne-17-4 yensimbi engenasici inegalelo ekuqineni okukhulu kwe-15-5. I-alloy iqiniswa ngakumbi ngonyango lobushushu obuphantsi obunciphisa ubhedu oluqulethe isigaba kwi-alloy. I-15-5 PH iyakwazi ukuhlangabezana neempawu ezingqongqo zomatshini ezifunekayo kwi-aerospace kunye nemizi-mveliso yenyukliya.

I-15-5 PH Ukuqulunqwa kweMichiza

	Isiqalelo	Ipesenti ngokobunzima
C	Ikhabhoni	0.07 ubuninzi
Cr	I-Chromium	14 – 15.5
Cu	Ubhedu	2.5 – 4.5
Fe	Intsimbi	Ibhalansi
Si	Isilicon	1.00 ubuninzi
S	Isulfure	0.03 ubuninzi
Ni	Nickel	3.5 - 5.5
Mn	IManganese	1.0 ubuninzi
P	Iphosphorus	0.04 ubuninzi
Nb Ta	Niobium kunye neTantalum	0.15 - 0.45