40CrNiMoA Cov Qauv Hlau Bar

40CrNiMoA tshuaj muaj pes tsawg leeg:
C :0.37--0.44
Si:017--0.37
Mn:050--0.80
S: tso cai rau cov ntsiab lus<=0.025
P: cia cov ntsiab lus tseem ceeb<=0.025
Cr:060--0.90
Ni:1.25--1.65
Cu: cia cov ntsiab lus tseem ceeb<=0.025
Mo:015--0.25

40CrNiMoA txhua yam khoom:
tensile strength b (MPa):>=980(100)
yield strength (MPa):>=835(85)
extensibility (%):>=12
reduction of area (%):>=55
ballistic work Akv (J):>=78
notched bar impact strength kv (J/cm2):>=98(10)
rigidity:<=269HB

Qhov steel bar no muaj cov ntsiab lus alloying tshwj xeeb uas ua rau nws ua tau zoo dua. Chromium (Cr) txhim khu lub hardness thiab hnav tsis kam ntawm cov hlau, ua rau nws ruaj khov thiab muaj peev xwm tiv taus abrasive quab yuam. Nickel (Ni) txhim kho nws qhov toughness thiab ductility, tso cai rau cov khoom kom deform nyob rau hauv kev ntxhov siab yam tsis muaj fracturing yooj yim. Molybdenum (Mo) ntxiv dag zog rau lub zog thiab kub ua haujlwm, ua kom lub steel bar tswj nws cov cuab yeej cuab tam ntawm qhov kub siab.

Hais txog cov khoom siv kho tshuab, 40CrNiMoA cov qauv steel bar muaj lub zog tensile siab, uas txhais tau hais tias nws tuaj yeem tiv taus qhov tseem ceeb rub tawm yam tsis muaj kev tawg. Nws kuj muaj kev qaug zog zoo, ua rau nws tsim nyog rau cov ntawv thov uas cov khoom raug rov ua dua thiab rov ua dua. Lub ductility ntawm no steel bar tso cai rau nws yooj yim zoo li tus thiab tsim thaum lub sij hawm tsim cov txheej txheem, xws li forging, machining, thiab vuam.

Lub microstructure ntawm 40CrNiMoA muaj ib tug nplua-grained martensitic los yog tempered martensitic qauv, nyob ntawm seb cov kev kho cua sov siv. Qhov microstructure no muab cov hlau bar nrog cov khoom siv kho tshuab zoo heev thiab qhov zoo ntawm qhov ntev. Nws tuaj yeem raug kho kom sov ntxiv kom zoo dua nws cov khoom, xws li los ntawm quenching thiab tempering, kom ua tiav qhov xav tau hardness thiab toughness tshuav nyiaj li cas rau cov ntawv thov tshwj xeeb.

Hauv kev lag luam engineering, 40CrNiMoA cov qauv steel hlau feem ntau yog siv los tsim cov khoom tseem ceeb rau cov tshuab, xws li lub zog, ncej, thiab axles. Hauv kev lag luam tsheb, nws yog siv rau lub cav qhov chaw thiab chassis Cheebtsam uas yuav tsum tau muaj zog thiab kav ntev. Nws kuj tseem ua haujlwm nyob rau hauv kev tsim kho ntawm cov qauv loj, xws li txuas hniav thiab cov tsev siab siab, qhov twg nws cov khoom siv txhim khu kev qha ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov txheej txheem. Zuag qhia tag nrho, 40CrNiMoA cov qauv steel bar yog cov khoom siv tseem ceeb uas ua lub luag haujlwm tseem ceeb hauv kev lag luam ntau, pab txhawb rau kev tsim cov khoom zoo thiab ruaj khov thiab cov qauv.

Cim npe nrov: 40crnimoa structural steel bar, Tuam Tshoj 40crnimoa structural steel bar lwm tus neeg, hoobkas