15-5pH steel hlau yog tsim los kom muaj zog ntau dua 17-4 PH.Lub 15-5 alloy yog martensitic nyob rau hauv cov qauv nyob rau hauv lub annealed mob thiab yog ntxiv dag zog los ntawm ib tug kuj tsis tshua muaj kub kev kho mob uas precipitates tooj liab uas muaj theem nyob rau hauv lub alloy.15-5 kuj tseem hu ua XM-12 hauv qee qhov tshwj xeeb
C | Cr | Ni | Si | Mn | P | S | Cu | Nb |
≤ 0.07 | 14.0-15.5 Nws | 3.5-5.5 | ≤1.0 | ≤1.0 | ≤ 0.04 | ≤ 0.03 | 2.5-4.5 | 0.15-0.45 dr hab |
Qhov ntom | Hluav taws xob resistivity | Thaum tshav kub kub muaj peev xwm | Thermal expansion coefficient |
7.8 ib | 0.98 ib | 460 | 10.8 |
Qhov xwm txheej | IB/N/mm2 | 0.2 / N / mm2 | δ 5/% | ψ | HRC | |
Dej nag | 480 ℃ kev laus | 1310 | 1180 | 10 | 35 | ≥40 |
550 ℃ kev laus | 1070 | 1000 | 12 | 45 | ≥35 | |
580 ℃ kev laus | 1000 | 865 ib | 13 | 45 | ≥31 | |
620 ℃ kev laus | 930 ua | 725 ib | 16 | 50 | ≥ 28 |
AMS 5659, AMS 5862, ASTM-A564 (XM-12), BMS 7-240 (Boeing), W.Nr./EN 1.4545
•Cov nag lossis daus Hardening
•Siab zog
•Nruab nrab corrosion kuj mus rau 600 ° F
•Aerospace applications
•Kev siv tshuaj thiab petrochemical
•Pulp thiab ntawv
•Kev ua zaub mov