15-5 chitsulo chosapanga dzimbiri ndi martensitic, mvula-youmitsa zinthu ndi chromium, faifi tambala ndi mkuwa. Nthawi zambiri ndi chisankho choyamba mumakampani opanga zakuthambo kwa zomangira ndi zida zamapangidwe. Kapangidwe kake kapadera kamapereka kulimba kowonjezereka komanso kukana kwa dzimbiri bwino kuposa zomwe zidalipo kale, 17-4 PH. Kuwongolera kophatikizika komanso kuchepa kwa delta ferrite poyerekeza ndi chitsulo chosapanga dzimbiri 17-4 kumathandizira kulimba kwambiri kwa 15-5. Aloyiyo imalimbikitsidwanso ndi kutentha kwapansi kutentha komwe kumapangitsa mkuwa wokhala ndi gawo mu alloy. 15-5 PH imatha kukwaniritsa zolimba zamakina zomwe zimafunikira muzamlengalenga ndi mafakitale a nyukiliya.

15-5 PH Chemical Mapangidwe

	Chinthu	Peresenti ndi Kulemera kwake
C	Mpweya	0.07 kuchuluka
Cr	Chromium	14 - 15.5
Cu	Mkuwa	2.5 - 4.5
Fe	Chitsulo	Kusamala
Si	Silikoni	1.00 pazipita
S	Sulfure	0.03 kuchuluka
Ni	Nickel	3.5 - 5.5
Mn	Manganese	1.0 kwambiri
P	Phosphorous	0.04 kukula
Nb Ta	Niobium kuphatikiza Tantalum	0.15 - 0.45