SCM440 Alloy hlau

 

 

SCM440 Tshuaj muaj pes tsawg leeg(JIS G4051)

 

C(%)	Si(%)	Mn(%)	P(%)	S(%)	Cr(%)	Mo(%)	Ni(%)	Cu(%)
0.38-0.43	0.15-0.35	0.6-0.85	{{0}} Tsawg dua lossis sib npaug rau 0.03	{{0}} Tsawg dua lossis sib npaug rau 0.03	0.9-1.2	0.15-0.3	{{0}} Tsawg dua los yog sib npaug rau 0.25	{{0}} Tsawg dua lossis sib npaug rau 0.3

 

kev kho cua sov

Annealing: 830 degree Qhov cub txias

Normalization: 830 ~ 880 degree Cua Txias

Hardening: 830 ~ 880 degree Roj Txias

Tempering: 530 ~ 630 degree Ceev Txias

Cov txheej txheem rau kev kho cua sov hloov kho:

Kub: 750 ~ 790 degree

Kub: 740 ~ 690 degree

Ms: 310 degree

 

Mechanical zog

Tensile zog (kgf / mm²): Ntau dua lossis sib npaug li 100

Yield zog (kgf / mm²): Ntau dua lossis sib npaug rau 85

Elongation (%): Ntau dua lossis sib npaug rau 12

Hla ntu txo tus nqi (%): Ntau dua lossis sib npaug rau 45

Tus nqi cuam tshuam (J / cm2): Ntau dua lossis sib npaug rau 6

Hardness (Hb): 285-352

 

• Cov ntawv thov:

• Automotive Kev Lag Luam: Siv dav hauv kev tsim ntau yam khoom siv tsheb xws li cov khoom siv cav (xws li, crankshafts, camshafts), kis tau tus mob, tsav shafts, thiab ncua kev kawm. Nws lub zog siab thiab toughness tuaj yeem ua tau raws li qhov xav tau ntawm kev ua haujlwm ntawm kev siv tsheb.

• Aerospace Field: Siv nyob rau hauv ib co aerospace Cheebtsam uas muaj zog thiab kev ntseeg siab yog ib qho tseem ceeb, xws li tej yam structural yam thiab mechanical Cheebtsam.

• Machinery Manufacturing: Siv los tsim cov cuab yeej siv tshuab, lub zog, bearings, thiab shafts rau cov tshuab dav dav vim nws cov khoom siv zoo heev thiab hnav tsis kam.

• Kev Lag Luam Roj thiab Roj: Siv rau hauv kev tsim cov khoom siv thiab cov khoom siv rau kev tshawb nrhiav roj thiab roj thiab kev tsim khoom, uas yuav tsum muaj cov khoom siv uas tuaj yeem tiv taus qhov kub ntxhov thiab corrosive ib puag ncig.

• Qhov zoo:

• Cov Txheej Txheem Zoo: Nws muaj qhov zoo forgeability, machinability (tuaj yeem txiav tau yooj yim, drilled, thiab milled), thiab weldability, ua rau nws yooj yim rau kev tsim thiab ua rau ntau yam duab thiab qhov ntau thiab tsawg.

• High Strength-rau-Weight Ratio: Muaj lub zog loj dua piv rau nws qhov hnyav, uas muaj txiaj ntsig zoo rau cov ntawv thov uas txo qhov hnyav yog qhov tseem ceeb yam tsis muaj kev cuam tshuam cov qauv kev ntseeg siab.

 

• Ua rau hnav thiab qaug zog: Cov alloy muaj pes tsawg leeg thiab kev kho cua sov kom zoo ua rau nws muaj kev hnav zoo thiab qaug zog, ua kom lub neej ua haujlwm ntev dua hauv kev xav tau kev ua haujlwm.

• Kev txiav txim siab:

• Kev Tswj Kev Kho Hniav Kub: Kev tswj xyuas meej ntawm cov txheej txheem kho cua sov yog qhov tseem ceeb kom ua tiav cov khoom siv tshuab uas xav tau. Kev kho cua sov tsis zoo tuaj yeem ua rau muaj teeb meem xws li tsis txaus hardness, txo toughness, lossis kev ntxhov siab sab hauv.

• Corrosion Resistance: Txawm hais tias nws muaj qee qhov kev tiv thaiv corrosion, nyob rau hauv ib puag ncig corrosive heev, ntxiv kev tiv thaiv nto (xws li txheej los yog plating) yuav tsum tau tiv thaiv corrosion.

• Tus nqi: Piv rau qee cov pa roj carbon steel, tus nqi ntawm SCM440 alloy steel tej zaum yuav siab dua. Txawm li cas los xij, xav txog nws qhov kev ua tau zoo tshaj plaws thiab kev pabcuam lub neej ntev dua hauv cov ntawv thov tshwj xeeb, tag nrho cov nqi-zoo yuav tseem muaj txiaj ntsig zoo nyob rau ntau qhov xwm txheej.

Cim npe nrov: Tuam Tshoj scm440 alloy steel lwm tus neeg, Hoobkas