Q235b steel phaj yog ib hom ntawm cov roj carbon steel tsawg. Lub teb chaws tus qauv GB / T 700-2006 "carbon cov qauv hlau" muaj lub ntsiab lus meej. Q235b yog ib qho ntawm cov khoom lag luam steel nyob hauv Suav teb. Nws yog pheej yig thiab tuaj yeem siv rau feem ntau cov khoom lag luam uas tsis tas yuav ua tau zoo.
Txoj kev:
Muaj Q + Tus lej + Cov Cim Qib + Zoo + Deoxidation! Nws tus lej Steel yog ua ntej nrog "Q", uas sawv cev rau cov muaj txiaj ntsig ntawm cov hlau, thiab cov xov tooj hauv qab no sawv cev rau cov txiaj ntsig tus nqi hauv MPA. Piv txwv li, Q235 sawv cev rau cov qauv roj carbon cov hlau nrog cov txiaj ntsig tau ntawm 235 MPa.
Yog tias tsim nyog, ib lub cim qhia txog qib zoo thiab DEEOsIDation txoj kev tuaj yeem cim tom qab tus lej Steel. Cov cim qib theem yog A, B, C, D. Cov cim ntawm Deagidation Txoj Kev: F txhais tau tias cov hlau npau npau; B txhais tau hais tias nyuaj semi-} tua cov hlau; Z txhais tau tias tua cov hlau; Tz txhais tau tias tshwj xeeb tua cov hlau. Cov hlau tua tsis tuaj yeem cim nrog cov cim, uas yog, ob Z thiab TZ yuav tsis cim. Piv txwv li, Q235-af sawv cev chav kawm cov hlau npau npau.
Carbon Steel rau cov hom phiaj tshwj xeeb, xws li Choj Hlau, tab sis cov ntawv qhia lub hom phiaj muaj hom phiaj yog ntxiv thaum kawg ntawm tus lej Steel.
Tshuaj Muaj Tshuaj
Cov pa roj carbon C: Tsawg dua lossis sib npaug rau 0.20
Silicon Si: tsawg dua los yog sib npaug rau 0.35
Manganese MN: Tsawg dua lossis sib npaug rau 1.4
Sulphur S: Tsawg dua lossis sib npaug rau 0.045
Phosphorus p: tsawg dua los yog sib npaug rau 0.045
Chromium cr: Allivable seem cov ntsiab lus tsawg dua lossis sib npaug rau 0.30
Nickel Ni: Cov lus pub qis dua cov ntsiab lus tsawg dua lossis sib npaug rau 0.30
Tooj liab Cu: Cov lus tso cai uas seem qis dua los yog sib npaug rau 0.30
Nco tseg: Deoxyenation txoj kev: F, B, Z
Cov Khoom Siv Neeg Kho Tshuab
Paib muaj zog: tsawg dua los yog sib npaug rau 16 hli: ntau dua los yog sib npaug rau 235
16-40: Ntau dua los yog sib npaug rau 225
40-100: Ntau dua los yog sib npaug rau 215
100-150: ntau dua los yog sib npaug rau 195
150-200: ntau dua los yog sib npaug rau 185.
Lub zog tensile: 370-500.
Kev Ntsuas Kev Ntsuas: Kub: 20 degree: ntau dua los yog sib luag rau 27
Cov Ntawv Thov:
Q235B muaj qee qib ntawm elongation, lub zog, muaj zog zoo thiab muaj zog, thiab yog ib qho yooj yim rau Stamp thiab Weld. Nws yog dav siv nyob rau hauv kev tsim khoom ntawm cov khoom siv neeg kho tshuab. Mas siv rau kev siv vuam cov qauv sib txuas nrog cov kev ua tau zoo hauv kev tsim kho thiab kev pheej choj engineering.
