Cov yeeb nkab me me yog hais txog cov ntsiab lus tsawg dua 0.25% carbon steel vim nws tsis muaj zog, tsis tshua muaj zog thiab mos.Nws suav nrog feem ntau ntawm cov pa roj carbon zoo tib yam thiab cov khoom siv zoo carbon steel, feem ntau tsis muaj kev kho cua sov siv hauv cov qauv engineering, qee qhov kev kho cua sov carburizing thiab lwm yam khoom siv rau kev hnav.Mild steel yeeb nkab annealing koom haum ferrite thiab pearlite txo nws lub zog thiab hardness, ductility thiab toughness.Yog li ntawd, qhov txias formability yog qhov zoo thiab tuaj yeem ua rau crimping, khoov, xuas nrig ntaus thiab lwm yam kev sib sau txias.Zoo li cov yeeb nkab steel me me muaj qhov zoo weldability.Cov ntsiab lus carbon los ntawm 0.10 mus rau 0.30% ntawm cov hlau me me yog ib qho yooj yim rau kev lees txais txhua yam kev ua xws li forging, vuam thiab txiav, feem ntau siv hauv kev tsim cov chains, rivets, bolts, shafts, thiab lwm yam.

Ordinary me me steel yeeb nkab yog rau kev tsim cov khoom siv hauv tsev, ntim, tank, rauv thiab tshuab ua liaj ua teb.Zoo me me steel yeeb nkab yog ua rau lub tsheb cab, hood thiab lwm yam khoom sib sib zog nqus liab;kuj dov rau hauv tuav, lub zog yuav tsum tau rau zus tau tej cov mechanical qhov chaw.Ua ntej siv cov yeeb nkab me me feem ntau tsis yog los ntawm kev kho cua sov, cov ntsiab lus ntawm cov pa roj carbon ntau dua 0.15% los ntawm kev kho carburizing lossis cyanide, siv los xav tau qhov kub thiab txias, hnav zoo shafts, bushings, sprockets thiab lwm yam.Vim lub zog tsawg ntawm cov hlau tsis muaj cov pa roj carbon tsawg, kev siv yog txwv.Tsim nyog txhawm rau nce cov ntsiab lus carbon ntawm manganese thiab ntxiv cov kab ntawm vanadium, titanium, niobium thiab lwm yam alloying, tuaj yeem txhim kho lub zog ntawm cov hlau.Yog tias koj txo qis cov ntsiab lus carbon ntawm cov hlau thiab ntxiv me me ntawm txhuas, thiab me me ntawm boron carbide tsim cov ntsiab lus, koj tuaj yeem tau txais ULCB teeb tsa siab txaus, thiab tswj kom zoo ductility thiab toughness.

Cov pa roj carbon tsawg ntawm cov yeeb nkab me me yog qhov tsis tshua muaj zog thiab ua haujlwm tsis zoo, cov txheej txheem normalizing tuaj yeem txhim kho machinability.Cov yeeb nkab me me zoo li muaj lub sijhawm ntau dua, ob qho tib si quench aging tendencies, nrog rau kev nyiam rau kev laus.Thaum cov cua txias sai sai los ntawm cov hlau kub kub, ferritic scraping carbon, nitrogen saturation, nws tuaj yeem ua rau qeeb ntawm cov hlau carbonitride nyob rau hauv chav tsev kub, thiab yog li lub zog thiab hardness ntawm hlau, qhov qis dua qhov ductility thiab toughness, ib qho tshwm sim hu ua. quench kev laus.Txawm tias tsis muaj quenching thiab qis carbon cua txias yuav tsim kev laus.Ua kom muaj cov pa roj carbon ntau ntau ntawm cov hlau tsis zoo los ntawm deformation dislocations ferrite los ntawm carbon, nitrogen atom elastic dislocation cuam tshuam, carbon, nitrogen atom kav sib sau ua ke nyob ib ncig ntawm txoj kab tsis ncaj ncees lawm.Xws li kev sib xyaw ua ke ntawm carbon thiab nitrogen atoms thiab cov kab dislocation hu ua Coriolis-xyoo-laus huab cua huab cua (Ke lop huab cua huab cua).Nws yuav ua rau kom lub zog thiab hardness ntawm steel thaum txo ductility thiab toughness, ib tug tshwm sim hu ua strain aging.Tshaj quench aging ntawm me me steel yeeb nkab thaum lub sij hawm deformation plasticity thiab toughness ntau dua txaus ntshai nyob rau hauv lub tensile nkhaus muaj pom tseeb rau sab sauv thiab qis yield point.Txij li thaum cov txiaj ntsig ntawm qhov taw tes elongation tshwm sim txog thaum kawg, tshwm sim deformed vim qhov tsis sib xws nrog cov folds tsim rau saum npoo ntawm cov qauv, hu ua Luders band.Yog li ntau stamping feem ntau yog muab pov tseg.Muaj ob txoj hauv kev ntawm nws txoj kev tiv thaiv.Ib txoj hauv kev ua ntej deformation siab, qhov chaw ua ntej deformed steel stamping qhov chaw tom qab lub sijhawm yuav tsim cov Luders band, yog li lub pre-deformed steel stamping yog muab tso ua ntej lub sij hawm tsis ntev heev.Lwm cov hlau, txhuas lossis titanium ntxiv rau kev tsim cov khoom ruaj khov nrog cov nitrogen kom tiv thaiv kev tsim cov huab cua los ntawm Coriolis deformation ntawm kev laus.