astm a500 vs a572 ua
A500 tus qauv zoo yog feem ntau muab faib ua peb qib: A, B, thiab C. Rau A500 square thiab rectangular raj, feem ntau siv qib yog A500B. Qib no ntawm cov hlau yuav tsum tau zoo weldability thiab machinability, thiab muaj kev xav tau siab rau tensile lub zog thiab yield zog. Tshwj xeeb, lub zog tensile ntawm A500B yuav tsum nyob nruab nrab ntawm 400 thiab 550 MPa, thiab lub zog tawm los yuav tsum tsis pub tsawg dua 240 MPa. Cov khoom no muab A500B zoo kev nyab xeeb thiab ruaj khov hauv tsev thiab kev tsim vaj tsev.
Thaum lub sij hawm tsim cov txheej txheem, A500 square thiab plaub lub raj xav tau kev soj ntsuam nruj, suav nrog kev tshuaj xyuas qhov muag, ntsuas qhov ntev, thiab ntsuas cov cuab yeej cuab tam. Cov neeg tsim khoom yuav tsum muab cov ntaub ntawv pov thawj zoo sib xws los xyuas kom meej tias cov ntaub ntawv ua tau raws li cov qauv. A500 square thiab plaub lub raj feem ntau yog tsim los siv cov txheej txheem kub dov lossis txias txheej txheem, uas ua kom lawv cov qauv sab hauv tsis sib xws thiab tuab, yog li txhim kho lawv cov load-cov kabmob muaj peev xwm.
A572 tus qauv zoo yog qhov nyuaj, feem ntau muab faib ua ntau theem, xws li A572 Qib 42, Qib 50, thiab Qib 55. Qib 50 yog qib siv dav tshaj plaws, haum rau siab -load structural applications vim nws lub zog siab thiab zoo weldability. A572 yuav tsum muaj lub zog tensile ntawm 450 thiab 620 MPa thiab lub zog tawm los ntawm tsis pub tsawg dua 345 MPa, muab lub zog zoo thiab tawv, ua rau nws tsim nyog rau cov tsev nyob rau hauv cov xwm txheej hnyav xws li av qeeg thiab cua tsis kam.
Thaum tsim A572 square thiab lub raj, ntxiv rau cov kev xav tau ntawm lub cev ua haujlwm, cov tshuaj muaj pes tsawg leeg ntawm cov khoom kuj tseem ceeb heev. Piv txwv li, A572 xav tau ntau dua ntawm cov ntsiab lus xws li manganese thiab silicon, uas txhim kho lub zog thiab kav ntev ntawm cov hlau. Cov neeg tsim khoom ntawm A572 yuav tsum tsim kom muaj cov qauv tshuaj ntsuam xyuas nruj kom ntseeg tau tias txhua pawg ntawm cov khoom ua tau raws li qhov xav tau kev ua tau zoo.
Hauv kev siv tswv yim, kev xaiv ntawm A500 thiab A572 feem ntau nyob ntawm cov kev cai tshwj xeeb engineering. Yog tias qhov project muaj qhov yuav tsum tau muaj zog tsawg thiab yog tus nqi -sensitive, A500B yuav yog qhov kev xaiv pheej yig dua. Txawm li cas los xij, hauv cov haujlwm uas yuav tsum tau tiv thaiv cov khoom loj lossis muaj qhov tshwj xeeb ib puag ncig, A572 yog qhov tseem ceeb tshwj xeeb. Kev kho deg ntawm cov hlab plaub kuj yog qhov tseem ceeb cuam tshuam rau lawv lub neej kev pabcuam. Txawm hais tias nws yog A500 lossis A572, kev kho saum npoo zoo tiv thaiv corrosion thiab txuas cov khoom siv lub neej. Cov kev kho saum npoo uas muaj xws li kub-dip galvanizing thiab pleev xim; ntau txoj kev tuaj yeem xaiv raws li qhov yuav tsum tau ua ntawm qhov project.
A500 thiab A572 structural raj Hoobkas
