Qhov txawv ntawm S235 thiab S355 yog dab tsi?
Qhov sib txawv tseem ceeb ntawm S235 thiab S355 cov qauv hlau nyob hauv lawv lub zog tawm los. S355 muaj qhov tsawg kawg nkaus tawm lub zog (355 MPa) dua li S235 (235 MPa), ua rau nws muaj zog thiab cov khoom siv nruj dua. Thaum lawv cov tshuaj muaj pes tsawg leeg yuav luag zoo ib yam, qhov sib txawv ntawm lub zog yog ua tiav los ntawm kev sib txawv dov thiab txias cov txheej txheem thaum tsim khoom.
Ntawm S235, lub cev kem nce mus txog 5% yas lim, thaum nyob rau ntawm S355, cov welds ntawm lub taub hau phaj ncav cuag qhov siab tshaj plaws kev ntxhov siab, ua rau lub cev tsis ua haujlwm tsawg dua. Txhawm rau kom tau txais tib lub sijhawm tiv thaiv ntawm S355 raws li ntawm S235, qhov sib koom ua ke tuaj yeem ua kom zoo rau cov khoom txuag.
S235 vs S355
S235:
Tawm Zog: 235 MPa
Tensile zog: 360-510 MPa
Feem ntau siv rau: Tsawg- qhov nyuaj siab nyob rau hauv steel thiab mechanical engineering, qhov twg lub zog siab tsis yog qhov tseem ceeb, raws li Murray Steel Products thiab thyssenkrupp Materials Processing.
S355:
Tawm Zog: 355 MPa
Tensile zog: 470-630 MPa
Feem ntau siv rau: Cov ntawv thov uas xav tau lub zog siab dua thiab thauj khoom- muaj peev xwm, xws li hauv kev tsim kho, kev tsim nkoj, thiab tshuab.
Dab tsi yog sib npaug rau S235 steel qib?
S235JR qib sib npaug yog GB Q235B, IS2062 qib B.
Dab tsi yog ASTM qib sib npaug ntawm S355?
ASTM A572-50 Cov Lus Qhia Tshwj Xeeb
Cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv tshuab ntawm S355 yog tswj hwm los ntawm EN Standards Txawm li cas los xij, qee qhov haujlwm yuav xav tau cov khoom siv raws li ASTM cov qauv. ASTM tau txheeb xyuas A572-50 raws li kev hloov pauv tau rau S355.
Dab tsi yog Suav sib npaug ntawm S235JR steel?
Q235B
Qhov ze tshaj Suav sib npaug rau S235JR (EN 10025-2) yog Q235B (GB/T 700-2006). Thaum cov qhab nia sib piv cov cuab yeej cuab tam, qhov sib txawv me me hauv kev sib xyaw thiab kev ua tau zoo yuav tsum tau ua tib zoo ntsuas rau kev ua raws cai thiab kev nyab xeeb.
