Seamless steel tube chaw tsim tshuaj paus yuav luv luv qhia txog kev faib thiab kev ua haujlwm ntawm carbon steel raj.

1. General carbon steel raj

Feem ntau, cov hlau uas muaj cov ntsiab lus carbon ntawm ≤0.25% yog hu ua low-carbon steel. Cov qauv annealed ntawm cov pa roj carbon tsawg yog ferrite thiab ib qho me me ntawm pearlite. Nws muaj zog tsawg thiab hardness, zoo plasticity thiab toughness, thiab yog ib qho yooj yim mus kos, stamp, extrude, Forging thiab vuam, uas 20Cr steel yog dav siv. Cov hlau muaj lub zog tshwj xeeb. Tom qab quenching thiab tempering ntawm qhov kub thiab txias, cov hlau no muaj cov cuab yeej zoo txhua yam, qhov kub thiab txias tsis zoo cuam tshuam, thiab temper brittleness tsis pom tseeb.

Kev siv:Nyob rau hauv kev lag luam machinery manufacturing, nws yog tsim rau ua welded structural qhov chaw thiab qhov chaw uas tsis muaj kev nyuaj siab tom qab forging, kub stamping thiab machining. Nyob rau hauv chav turbine thiab boiler manufacturing industries, nws yog feem ntau yog siv rau cov kav dej, flanges, thiab lwm yam uas ua hauj lwm nyob rau hauv uas tsis yog-corrosive media. Headers thiab ntau yam fasteners; kuj tsim nyog rau kev tsim cov khoom me me thiab nruab nrab carburizing thiab carbonitriding qhov chaw hauv tsheb, tsheb laij teb thiab kev tsim khoom siv dav siv, xws li cov khau khiab tes, lub pas nrig, thiab gearbox ceev diav rawg ntawm lub tsheb, kis tau tus mob passive gears thiab camshafts ntawm tsheb laij teb, ncua kev tshuav nyiaj li cas. shafts, sab hauv thiab sab nrauv bushings ntawm balancers, thiab lwm yam.; nyob rau hauv hnyav thiab nruab nrab machinery manufacturing, xws li forged los yog nias khi rods, shackles, levers, tes tsho, fixtures, thiab lwm yam.

2. Tsawg carbon steel raj
Tsawg-carbon steel: Tsawg-carbon steel nrog cov ntsiab lus ntawm ntau tshaj 0.15% yog siv rau shafts, bushings, sprockets, thiab ib co yas pwm uas yuav tsum tau siab hardness thiab zoo hnav tsis kam ntawm qhov chaw tom qab carburizing thiab quenching thiab low-temperature tempering. Cheebtsam. Tom qab carburizing thiab quenching thiab low-temperature tempering, cov hlau uas tsis muaj cov pa roj carbon monoxide muaj cov qauv ntawm cov pa roj carbon martensite rau ntawm qhov chaw thiab cov pa roj carbon tsawg hauv qhov chaw, thiaj li xyuas kom meej tias qhov chaw muaj qhov hardness siab thiab hnav tsis kam thaum qhov chaw muaj siab heev hardness. Zoo zog thiab toughness. Nws yog tsim rau ua tes nres khau, lever shafts, gearbox ceev diav rawg, kis tau tus mob passive zog, camshafts ntawm tsheb laij teb, ncua kev kawm ntawv balancer shafts, sab hauv thiab sab bushes ntawm balancers, tes tsho, fixtures thiab lwm yam.

3. Nruab nrab carbon steel raj
Medium-carbon steel: carbon hlau nrog cov ntsiab lus carbon ntawm 0.25% txog 0.60%. 30, 35, 40, 45, 50, 55 thiab lwm yam qib yog rau nruab nrab-carbon steel. Vim tias cov ntsiab lus pearlite hauv cov hlau nce, nws lub zog thiab hardness siab dua ua ntej. Hardness tuaj yeem nce ntxiv tom qab quenching. Ntawm lawv, 45 steel yog qhov zoo tshaj plaws. 45 steel yog lub zog nruab nrab-carbon quenched thiab tempered steel, uas muaj qee yam plasticity thiab toughness, thiab kev ua haujlwm zoo. Nws tuaj yeem tau txais cov khoom zoo txhua yam los ntawm quenching thiab tempering kho, tab sis nws cov hardenability tsis zoo. Nws yog siv los tsim cov khoom nrog lub zog siab thiab nruab nrab toughness. Nws feem ntau yog siv nyob rau hauv quenched thiab tempered los yog normalized xeev. Txhawm rau ua kom cov hlau muaj qhov tsim nyog toughness thiab tshem tawm nws cov kev ntxhov siab seem, cov hlau yuav tsum tau quenched thiab ces tempered rau hauv sorbite.