Q195 Q235 Q245 Q275 Equal Angle Steel Hlau Lub Beam Tshooj Hlau

Q195, Q235, Q245, thiab Q275 vaj huam sib luag lub kaum sab xis steel, kuj hu ua hlau lub kaum sab xis nqaj hlau, yog ib tug series ntawm high - zoo carbon structural steel profiles characterized los ntawm lawv symmetrical sib npaug -sided L{6}}zoo li tus ntoo khaub lig- seem. Cov qauv tsim qauv classic no ua kom muaj kev thauj khoom zoo tshaj -cov kabmob muaj peev xwm, kev faib tawm tsis sib xws, thiab cov qauv tsim muaj zog, ua rau cov khoom siv ntau yam thiab tseem ceeb hauv ntau yam kev lag luam, kev tsim kho, thiab kev tsim khoom. Tsim los ntawm kev kub siab- dov technology thiab nruj ua raws li Suav teb cov qauv (GB/T 700 rau carbon structural steels), peb lub vaj huam sib luag steel siv siab - purity carbon steel billets, guaranteeing zoo ib yam khoom zoo, superior processability, thiab txhim khu kev qha kev ua tau zoo kom tau raws li cov kev cai ntawm lub kaum sab xis beam thiab structural daim ntawv thov.

Raws li lub kaum sab xis ntawm lub kaum sab xis steel, qhov sib npaug ntawm lub kaum sab xis yog txhais los ntawm ob qhov zoo tib yam - ntev ceg (flanges) txuas ntawm lub kaum sab xis ntawm 90-degree txoj cai, ib qho qauv uas ua kom zoo dua nws txoj kev khoov, torsional, thiab shear rog- qhov tseem ceeb zoo rau nws lub luag hauj lwm raws li lub hauv paus ntsiab lus, kev txhawb nqa thiab cov qauv ntawm cov kab. Cov txheej txheem tsim khoom siv cov txheej txheem kub kub- dov tshuab, uas suav nrog cov cua kub carbon steel rau qhov kub siab tshaj qhov recrystallization point (feem ntau 800-1050 degree) ua ntej precision dov thiab shaping. Cov txheej txheem thermal no ua kom cov txheej txheem sab hauv ntawm cov hlau, ua rau lub ntsej muag du, nruj qhov ntev ntev, thiab txhim kho ductility. Cov khoom no ua kom yooj yim rau ntawm qhov chaw ua haujlwm, suav nrog kev txiav, khoov, vuam, thiab drilling, tsis muaj kev puas tsuaj rau cov hlau cov qauv kev ncaj ncees lossis cuam tshuam nws cov khoom siv kho tshuab.

Plaub qib steel qib -Q195, Q235, Q245, thiab Q275- yog txhua tus qauv carbon structural steels, cais los ntawm lawv cov yield zog ("Q" nyob rau hauv qib sawv cev rau "yield zog" nyob rau hauv Suav cov qauv), nrog txawv mechanical zog kom hloov mus rau txawv load yuav tsum thiab daim ntawv thov scenarios. Txhua qib tswj hwm tus nqi zoo tshaj -kev ua tau zoo thiab kev ua tau zoo, ua rau lawv siv dav dav thiab teeb pom kev zoo- mus rau - cov ntaub ntawv nruab nrab-lub luag haujlwm.

Q195 yog qhov qis tshaj - qib zog hauv cov koob no, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 195MPa thiab lub zog tensile ntau ntawm 315-430MPa. Nws muaj cov ntsiab lus carbon tsawg (qhov siab tshaj 0.12%), zoo heev formability, thiab weldability, thiab yog lub teeb yuag thiab nqi-zoo. Cov qib no feem ntau yog siv rau hauv lub teeb-cov khoom siv hauv lub cev, xws li cov hlua me me, cov guardrails, lub teeb steel thav duab rau cov qauv uas tsis yog- cov khoom thauj khoom, thiab cov khoom siv hauv cov tshuab thiab cov khoom siv.

Q235 yog qhov dav siv dav tshaj plaws - hom phiaj carbon steel qib, nrog qhov tsawg kawg nkaus lub zog ntawm 235MPa thiab lub zog tensile ntau ntawm 375-500MPa. Nws muaj cov ntsiab lus carbon nruab nrab (siab tshaj 0.22%), zoo toughness, thiab sib npaug formability thiab weldability. Q235 sib npaug ntawm lub kaum sab xis steel ua cov khoom tseem ceeb hauv kev tsim kho, tshuab, thiab kev tsim kho vaj tse, feem ntau siv hauv purlins, girts, nqaj txhawb nqa, lub hauv paus, thiab cov khoom siv dav dav uas yuav tsum tau muaj peev xwm txhim khu kev qha.

Q245 yog qhov nruab nrab- lub zog carbon steel qib, nrog qhov tsawg kawg nkaus lub zog ntawm 245MPa thiab lub zog tensile ntau ntawm 410-550MPa. Nws muaj zog me ntsis siab dua Q235, thaum tuav zoo ductility thiab weldability. Cov qib no yog tsim rau nruab nrab -cov haujlwm ua haujlwm, xws li thauj khoom- bearing brackets, beam Cheebtsam nyob rau hauv lub teeb muaj rhiav, piping txhawb, thiab thav duab thav duab uas yuav tsum tau muaj zog dua Q235 tab sis tsis xav tau tus nqi ntawm high-alloy steels.

Q275 yog qhov siab tshaj - qib zog hauv cov koob no, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 275MPa thiab lub zog tensile ntau ntawm 490-630MPa. Nws muaj cov ntsiab lus ntawm cov pa roj carbon ntau dua (qhov siab tshaj 0.27%), muab kev txhim kho hardness thiab load-cov kabmob muaj peev xwm. Q275 vaj huam sib luag lub kaum sab xis yog qhov zoo tagnrho rau cov khoom hnyav{10}}cov haujlwm ua haujlwm, xws li cov kab teeb tseem ceeb, cov kabmob thauj khoom, cov khoom siv hluav taws xob txhawb nqa, thiab cov khoom siv uas muaj cov khoom loj zoo li qub lossis dynamic loads.

Tag nrho plaub qib ntawm lub kaum sab xis steel muaj nruj tswj hwm cov khoom tsis zoo (phosphorus ≤0.045% thiab sulfur ≤0.045%), tiv thaiv cov khoom siv brittleness thiab ua kom ntev ntev -lub sij hawm ua haujlwm ntev nyob rau hauv ib puag ncig hnyav, nrog rau sab nraum zoov, ntub dej, thiab chaw tsim khoom. Raws li lub kaum sab xis kab hlau, nws qhov sib npaug -ib sab tsim ua kom muaj zog sib kis, ua rau nws haum rau ob qho tib si - cov khoom siv thiab kev sib dhos rau hauv cov txheej txheem nyuaj (xws li cov kab sib txuas thiab cov thav duab). Nrog txhim khu kev qha zoo, ntau yam kev ua tau zoo, thiab tus nqi-kev ua tau zoo, Q195, Q235, Q245, thiab Q275 sib npaug ntawm lub kaum sab xis steel ua tau raws li qhov xav tau ntawm ntau tus neeg siv khoom thoob ntiaj teb, muab cov qauv siv tau zoo thiab kev lag luam rau ntau yam kev tsim kho thiab kev tsim khoom.