15-5pH irin alloy jẹ apẹrẹ lati ni lile ti o tobi ju 17-4 PH.Alloy 15-5 jẹ martensitic ni igbekalẹ ni ipo annealed ati pe o ni agbara siwaju sii nipasẹ itọju iwọn otutu kekere ti o jo eyi ti o ṣafẹri ipele ti o ni bàbà ninu alloy.15-5 tun tọka si bi XM-12 ni diẹ ninu awọn pato
C | Cr | Ni | Si | Mn | P | S | Cu | Nb |
≤0.07 | 14.0-15.5 | 3.5-5.5 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.03 | 2.5-4.5 | 0.15-0.45 |
iwuwo | Ina resistivity | Ooru pato agbara | Gbona imugboroosi olùsọdipúpọ |
7.8 | 0.98 | 460 | 10.8 |
Ipo | бb/N/mm2 | б0.2/N/mm2 | 5/% | ψ | HRC | |
Òjòjò | 480 ℃ ti ogbo | 1310 | 1180 | 10 | 35 | ≥40 |
550℃ ti ogbo | 1070 | 1000 | 12 | 45 | ≥35 | |
580℃ ti ogbo | 1000 | 865 | 13 | 45 | ≥31 | |
620 ℃ ti ogbo | 930 | 725 | 16 | 50 | ≥28 |
AMS 5659, AMS 5862,ASTM-A564 (XM-12),BMS 7-240 (Boeing),W.Nr./EN 1.4545
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