Hnav-resistant steel phaj muaj ob ntu: qis carbon steel phaj thiab alloy hnav-resistant txheej. Lub alloy hnav-resistant txheej feem ntau yog 1/3 ~ 1/2 ntawm tag nrho cov tuab. Thaum lub sijhawm ua haujlwm, cov matrix muab cov khoom zoo xws li lub zog, toughness thiab plasticity los tiv thaiv sab nraud quab yuam, thiab alloy hnav-resistant txheej muab cov khoom hnav-tiv taus uas ua tau raws li cov kev cai ntawm kev ua haujlwm.
Cov tshuaj muaj pes tsawg leeg ntawm alloy hnav-resistant txheej muaj cov ntsiab lus carbon ntawm 4 mus rau 5% thiab cov ntsiab lus chromium ntawm 25 mus rau 30%. Qhov ntim feem ntawm Cr7C3 carbide hauv nws cov qauv metallographic ncav cuag ntau dua 50%. Lub macro hardness yog HRC56 txog 62. Qhov ntim feem ntawm chromium carbide yog qhov hardness yog HV1400 ~ 1800. Txij li thaum carbides raug faib vertically nyob rau hauv cov kev taw qhia ntawm hnav, txawm piv nrog cam khwb cia alloys ntawm tib yam muaj pes tsawg leeg thiab hardness, hnav kuj yog ntau tshaj ob npaug. Kev sib piv ntawm kev hnav tsis kam nrog ntau cov ntaub ntawv raug raws li hauv qab no: (1) nrog cov pa roj carbon tsawg; 20 ~ 25: 1 (2) nrog li-cam khwb cia siab chromium cam khwb cia hlau; 1.5 ~ 2.5: 1
