Cov tshuaj muaj pes tsawg leeg ntawm 15MnNiDR feem ntau suav nrog cov ntsiab lus ntawm C, Si, Mn, Ni, V thiab Al. Ntawm lawv, cov ntsiab lus tseem ceeb ntawm C yog nyob rau hauv thaj tsam ntawm 0.12-0.20%, cov ntsiab lus ntawm Si yog nyob rau hauv qhov ntau ntawm {{1{{13} }}}. Cov ntsiab lus tseem ceeb ntawm Ni yog nyob rau hauv thaj tsam ntawm 0.30-0.80%, cov ntsiab lus ntawm V yog nyob rau hauv thaj tsam ntawm 0.{14}}.10%, thiab cov ntsiab lus ntawm Al yog nyob rau hauv ntau yam ntawm 0.015-0.060%. Tsis tas li ntawd, cov ntsiab lus tseem ceeb ntawm P thiab S hauv 15MnNiDR yuav tsum tsis txhob ntau dua 0.025% thiab 0.015%, feem. Cov ntsiab lus ntawm cov tshuaj no muaj ib qho tseem ceeb ntawm cov khoom thiab toughness ntawm 15MnNiDR.
15MnNiDR muaj cov khoom siv zoo, nrog lub zog tensile ntawm 490-620 MPa, lub zog tawm los siab tshaj 315 MPa, thiab elongation siab tshaj 22%. Tsis tas li ntawd, 15MnNiDR kuj muaj qhov cuam tshuam zoo, nws qhov cuam tshuam ua haujlwm ntawm chav tsev kub tsis tsawg dua 34 J, ntawm -40 degree tsis tsawg dua 27 J. Cov khoom siv zoo heev no ua rau 15MnNiDR tuaj yeem ua tau raws li qhov xav tau ntawm kev tsim khoom. ntawm cov hlab ntsha uas tsis kub siab.
15MnNiDR yog dav siv hauv roj av, tshuaj lom neeg, roj av thiab lwm yam kev lag luam hauv kev tsim cov hlab ntsha uas muaj qhov kub thiab txias. Vim nws qhov zoo toughness thiab tsis tshua muaj kev cuam tshuam cov khoom, nws tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm hauv qhov kub thiab txias. Tsis tas li ntawd, 15MnNiDR kuj tseem tuaj yeem siv rau hauv kev tsim cov roj liquefied roj tso tsheb hlau luam, liquefied natural gas cia tank thiab lwm yam khoom siv kub kub tseem ceeb. Nyob rau hauv daim ntawv thov tiag tiag, nws yog ib qho tsim nyog los xaiv cov khoom tsim nyog specifications thiab cov txheej txheem ua raws li qhov xwm txheej tshwj xeeb los xyuas kom meej qhov zoo thiab kev nyab xeeb ntawm cov khoom.
