ASTM 4118 Hlau|SCM420|18CrMo4|1.7243 Alloy hlau
Feb 13, 2023
Khoom Description
ASTM 4118 Hlau, tseem hu ua SCM420, 18CrMo4, thiab 1.7243 Alloy Steel, yog cov khoom zoo kawg nkaus nrog ntau yam khoom zoo.
Qhov no alloy steel yog heev saib rau nws tshwj xeeb lub zog thiab toughness. Kev sib xyaw ua ke ntawm chromium, molybdenum, thiab lwm yam alloying ntsiab muab nws txhim kho hardness thiab hnav tsis kam, ua rau nws zoo tagnrho rau cov ntawv thov kom muaj zog thiab muaj peev xwm tiv taus hnyav.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm ASTM 4118 Steel yog nws cov khoom siv tau zoo heev. Nws tuaj yeem ua tau yooj yim thiab zoo li tus siv ntau yam kev siv tshuab ua haujlwm, ua kom muaj kev tsim cov khoom siv thiab cov khoom siv. Qhov no ua rau nws yog qhov kev xaiv nrov rau kev tsim khoom lag luam.
Ntxiv nrog rau nws cov khoom siv kho tshuab, cov hlau no tseem muaj cov yam ntxwv kho cua sov zoo. Nws tuaj yeem hardened thiab tempered kom ua tiav qhov xav tau hardness thiab lub zog qib. Cov txheej txheem kev kho cua sov tuaj yeem tswj tau meej los ua kom zoo dua cov hlau cov khoom rau kev siv tshwj xeeb.
Lwm cov cuab yeej tseem ceeb ntawm ASTM 4118 Hlau yog nws qhov nruab nrab corrosion kuj. Txawm hais tias tsis zoo li corrosion-resistant li qee cov hlau tsis muaj steel, nws tseem muaj qee qhov kev tiv thaiv corrosion hauv ntau qhov chaw. Qhov no ua rau nws haum rau ntau yam kev siv hauv kev lag luam.
Tsis tas li ntawd, ASTM 4118 Steel muaj nyob rau hauv ntau hom, nrog rau cov tuav, raj, thiab daim hlau. Qhov no muab kev yooj yim hauv kev tsim thiab tsim khoom, tso cai rau cov kws tsim khoom thiab cov chaw tsim khoom xaiv cov ntawv tsim nyog tshaj plaws rau lawv cov kev xav tau tshwj xeeb.
Hauv kev xaus, ASTM 4118 Steel, nrog rau nws cov kev xaiv ntau yam xws li SCM420, 18CrMo4, thiab 1.7243 Alloy Steel, yog cov khoom siv txhim khu kev qha thiab ntau yam nrog lub zog zoo, toughness, machinability, kev kho cua sov, thiab nruab nrab corrosion kuj. Nws cov kev siv ntau yam ua rau nws yog qhov kev xaiv tseem ceeb hauv kev lag luam engineering thiab kev tsim khoom.
