40CrMo4 hlau
40CrMo4 steel yog ntau yam tsis tshua muaj hlau alloy nrog zoo tensile thiab hardenability, thiab tsis pom tseeb tempering brittleness.
Tom qab quenching thiab tempering kev kho mob, lub qaug zog txwv yog siab, nws yog resistant rau ntau yam cuam tshuam, thiab muaj zoo low-temperature cuam tshuam toughness. Los ntawm nplaim taws hardening los yog nitriding (kom ua tiav qhov siab tshaj plaws hnav thiab tsim kua muag), nws hnav tsis kam tuaj yeem txhim kho tau zoo. Kev txhawb zog tuaj yeem muab tau rau hauv ob qho tib si quenched thiab tempered xeev, nrog lub zog tensile tshaj 800N / mm2 (nyob ntawm seb qhov tuab ntawm seem), tab sis nws kuj tuaj yeem muab rau hauv lub xeev softened rau kev kho cua sov ntxiv.
Tshuaj muaj pes tsawg leeg
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Tshuaj muaj pes tsawg leeg |
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C |
Si |
Mn |
Mo |
Cr |
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0.38~0.45 |
0.17~0.37 |
0.40~0.70 |
0.15~0.25 |
0.90~1.20 |
Mechanical Property
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Cov cuab yeej cuab tam |
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Tensile zog |
Ntau dua lossis sib npaug rau 1080MPa |
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Yield zog |
Ntau dua lossis sib npaug rau 930MPa |
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Elongation |
Ntau dua lossis sib npaug li 12% |
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Kev nruj |
Tsawg dua lossis sib npaug rau 217HB |
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Rkev kawm ntawm cheeb tsam |
Ntau dua lossis sib npaug li 40% |
