Qhov sib txawv ntawm Q235A, Q235B, Q235C thiab Q235D
Q235 yog ib hom carbon structural steel uas yog siv nyob rau hauv kev tsim kho thiab engineering industries. Cov tsiaj ntawv A, B, C, thiab D qhia cov thicknesses sib txawv thiab cov khoom ntawm cov hlau.LEFIN STEELtuaj yeem tsim Q235B, Q235C, Q235D khoom steels.
Chemical Element Cov ntsiab lus:
Q235A: C Tsawg dua lossis sib npaug rau 0.22%, Mn Tsawg dua lossis sib npaug rau 1.4%, Si Less dua lossis sib npaug rau 0.35%, S Tsawg dua lossis sib npaug rau {{7 }}.050%, P Tsawg dua lossis sib npaug li 0.045%
Q235B: C Tsawg dua lossis sib npaug rau 0.20%, Mn Tsawg dua lossis sib npaug rau 1.4%, Si Less dua lossis sib npaug rau 0.35%, S Tsawg dua lossis sib npaug rau 0.045%, P Tsawg dua lossis sib npaug rau 0.045%
Q235C: C Tsawg dua lossis sib npaug rau 0.17%, Mn Tsawg dua lossis sib npaug rau 1.4%, Si Less dua lossis sib npaug rau 0.35%, S Tsawg dua lossis sib npaug rau {{7 }}.040%, P Tsawg dua lossis sib npaug li 0.040%
Q235D: C Tsawg dua lossis sib npaug rau 0.17%, Mn Tsawg dua lossis sib npaug rau 1.4%, Si Less dua lossis sib npaug rau 0.35%, S Tsawg dua lossis sib npaug rau {{7 }}.035%, P Tsawg dua lossis sib npaug li 0.035%
Tensile zog thiab yield zog:
Q235A muaj lub zog tensile ntawm 370-500MPa thiab lub zog tawm ntawm 235MPa.
Q235B muaj lub zog tensile ntawm 370-500MPa thiab yield zog ntawm 235MPa.
Q235C muaj lub zog tensile ntawm 370-500MPa thiab lub zog tawm ntawm 235MPa.
Q235D muaj lub zog tensile ntawm 370-500MPa thiab yield zog ntawm 235MPa.
Kub poob siab:
Q235A: tsis muaj kev poob siab
Q235B: 20 degree
Q235C: 0 degree
Q235D: -20 degree
Qhov zoo:
1. Lub zog siab: Q235 steel muaj qhov tsawg kawg nkaus lub zog ntawm 235MPa, ua rau nws muaj zog heev thiab ruaj khov txawm tias nyob rau hauv ib puag ncig hnyav.
2. Corrosion kuj: Ua tsaug rau nws cov ntsiab lus siab carbon, Q235 steel muaj kev tiv thaiv zoo heev rau xeb, corrosion, thiab lwm yam kev puas tsuaj rau lub sijhawm.
3. Weldability: Q235 steel yog qhov zoo tshaj plaws weldable, uas txhais tau tias nws tuaj yeem yooj yim koom nrog lwm cov ntaub ntawv los tsim kev sib txuas kom ruaj khov thiab ruaj ntseg yam tsis muaj kev cuam tshuam nws cov qauv kev ntseeg siab.
4. Versatility: Q235 steel yog tsim rau ntau hom kev lag luam, suav nrog kev tsim kho, tsim khoom, tshuab, thiab lwm yam. Nws tuaj yeem ua tau zoo li tus thiab molded rau hauv ntau hom sib txawv thiab qhov ntau thiab tsawg kom tau raws li qhov project tshwj xeeb.
5. Tus nqi zoo: Piv nrog rau lwm hom hlau, Q235 kuj tseem pheej yig, uas ua rau nws muaj kev xaiv pheej yig rau ntau daim ntawv thov kev lag luam.
Daim ntawv thov:
Q235A yog cov hlau me me uas muaj lub zog tensile ntawm 370-500 MPa thiab lub zog tawm ntawm 235 MPa. Qib no feem ntau yog siv rau hauv kev tsim kho thiab engineering tej yaam num, xws li cov tsev thiab txuas hniav.
Q235B yog cov pa roj carbon tsawg nrog lub zog zoo thiab tawv. Nws muaj lub zog tensile ntawm 370-500 MPa thiab lub zog tawm ntawm 235 MPa. Qib no feem ntau yog siv rau hauv cov khoom siv, xws li kab teeb thiab kab.
Q235C yog nruab nrab carbon steel nrog lub zog zoo thiab tawv. Nws muaj lub zog tensile ntawm 470-630 MPa thiab lub zog tawm ntawm 235 MPa. Cov qib no feem ntau yog siv rau hauv kev tsim khoom lag luam, xws li tsheb thiab tshuab.
Q235D yog lub zog siab qis alloy steel nrog zoo toughness. Nws muaj lub zog tensile ntawm 510-610 MPa thiab lub zog tawm ntawm 235 MPa. Qib no feem ntau yog siv rau hauv cov khoom siv, xws li txuas hniav thiab cov tsev.
Qhov twg yog qhov zoo dua:
Cov khoom xyaw sib txawv muaj cov tshuaj sulfur sib txawv. Los ntawm qib zoo, ABCD tau txhim kho ib kauj ruam dhau los.
Piv txwv li, Q235A ua qhov kev ntsuam xyuas lub zog, Q235B ua qhov 20-degree impact strength test, Q235C puas qhov 0-degree impact strength test, thiab Q235D puas qhov -20-degree impact strength test. Nyob rau hauv qhov cuam tshuam endurance xeem, qhov ntsuas kub ntawm tib yam khoom, qhov qis dua qhov endurance.
Qhov ntsuas kub qis tshaj ntawm D-theem tseem yog siab li peb theem dhau los, yog li kev ua haujlwm ntawm Q235B zoo dua li Q235A.
Yuav ua li cas paub Q235A, Q235B, Q235C, Q235D:
Cov qauv hlau Q235A, Q235B, Q235C thiab Q235D yog qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab thiab kev ua haujlwm vuam, yog li lawv yuav tsum tau paub qhov txawv thaum siv lawv.
Ua ntej ntawm tag nrho cov, Q235A thiab Q235B muaj cov tshuaj zoo sib xws, muaj zog thiab ductility, thiab tsim nyog rau kev siv tshuab thiab kev tsim khoom. Q235C thiab Q235D steels muaj cov ntsiab lus carbon ntau dua, muaj zog dua thiab hardness, thiab tsim nyog rau cov ntawv thov uas yuav tsum tau tiv taus qhov hnyav ntawm cov tshuab loj thiab cov cuab yeej hnyav.
Qhov thib ob, nyob rau hauv cov nqe lus ntawm vuam kev ua tau zoo, Q235B thiab Q235D muaj kev vuam zoo dua li Q235A, thiab lawv lub zog thiab plasticity tom qab vuam kuj siab dua.
Yog li ntawd, thaum xaiv cov qauv steel, nws yog ib qho tsim nyog yuav tsum xav txog tag nrho nws daim ntawv thov cov xwm txheej los xaiv cov khoom tsim nyog.
Hauv cov ntsiab lus, qhov sib txawv ntawm Q235A, Q235B, Q235C, thiab Q235D nyob hauv lawv cov ntsiab lus sib txawv ntawm cov pa roj carbon monoxide thiab lub zog tawm los. Lawv txhua tus feem ntau siv hauv kev tsim kho thiab engineering kev lag luam hauv Suav teb.
