### 1. Dab tsi yog Q235B sib npaug rau ASTM?
Qhov ze tshaj Astm sib npaug rau Q235b yog ** ASTM A36 **. Ob qho tib si yog ib qho, dav - hom phiaj qauv cov khoom siv hlau uas muaj zog sib xws, tshwj xeeb tshaj yog lub zog. Txawm li cas los xij, lawv tsis zoo ib yam. Cov tshuaj lom neeg cov tshuaj lom neeg txawv, nrog Q235B muaj ib qho kev paub txog cov ntsiab lus carbon thiab raug tua lossis ua rau A36 muaj cov ntsiab lus ntawm cov pa roj carbon ntau thiab sib txawv rau manganese. Rau feem ntau cov ntawv thov kev tsim kho, lawv raug txiav txim siab sib raug zoo, tab sis rau cov ntawv thov tseem ceeb, cov qauv tshwj xeeb yuav tsum tau sab laj.
### 2. Dab tsi yog qhov sib txawv ntawm ASTM A thiab ASTM B?
Thawj qhov sib txawv ntawm cov khoom uas lawv them:
* ** ASTM A ** cov qauv npog ** cov hlau ferrous thiab cov khoom **. Qhov no suav nrog txhua hom hlau thiab hlau, xws li cov hlau, alloy hlau, hlau stainless, thiab hlau {1} bued supalloys. Piv txwv yog Astm A36 (cov hlau carbon) thiab ASTM A240 (cov hlau stainless).
* ** ASTM B ** cov qauv npog ** cov hlau tsis muaj hlau thiab cov khoom lag luam **. Qhov no suav nrog cov hlau thiab cov alloys uas tsis muaj hlau los ua lawv tus tub ntxhais kawm tseem ceeb, xws li tooj liab, Alickel, Titanium, thiab zinc. Piv txwv yog Astm B88 (tooj liab lub raj dej) thiab ASTM B209 (aluminium alloy ntawv thiab phaj).
### 3. Dab tsi yog qhov sib txawv ntawm SPCC thiab Q235B?
Spcc thiab Q235b yog qhov sib txawv hauv lawv daim ntawv thov thawj tswj thiab daim ntawv:
* ** Spcc ** yog JIS tus qauv JIS tus qauv (G3141) rau ** txias {{1} {dov steel ntawv **. Nws yog General {{3} Phaj Qaum Kev Lag Luam Steel nkag rau hauv ntawv lossis coil daim ntawv, feem ntau siv rau stamping, kev sib sau ua ke, thiab khoov, thiab khoov, thiab khoov, thiab khoov, thiab dabtsi yog khoov. Nws tsis muaj lub meej mom lub zog hauv nws qhov tseem ceeb tsim thiab nws cov nplaim yog du thiab haum rau kev pleev xim lossis plating.
* ** Q235B ** yog suav GB qauv rau ** kub - rolled qauv qauv hlau **. Nws yog muab nyob rau hauv daim hlau, ntu (zoo li i - - nqaj thiab cov ces kaum), thiab cov ceg). Nws yog tsim los rau tsev qauv qauv, txuas hniav, thiab lwm yam kev siv tshuab cov khoom siv tshuab ua lub zog yog qhov tseem ceeb.
Nyob rau hauv luv luv, Spcc yog txias -}}}}}}}} Koj puas yog ib qho kub {2} {rolled * cov qauv * steel rau kev tsim kho.
### 4. Yog Q235 Hlau Zoo?
Yog, Q235 hlau feem ntau suav tias yog cov khoom siv zoo thiab ntseeg tau rau nws cov hom phiaj npaj. Nws cov txiaj ntsig suav nrog:
* ** Lub zog zoo thiab ductility: ** Nws muaj qhov sib npaug zoo ntawm lub zog thiab muaj peev xwm tsim thiab welded, ua rau nws ntau heev.
* ** Nws zoo tshaj Veldability: ** Nws yog ib qho ntawm cov hlau vuam feem ntau, cov hlau uas tseem ceeb rau kev tsim kho.
* ** Tus nqi {-}}}}}}}} {{{1} -} cov roj carbon hlau, nws yog qhov pheej yig thiab dav.
* ** Daim ntawv thov thoob plaws: ** Nws yog qhov feem ntau cov qauv siv qauv tsim qauv hauv Suav teb rau cov tsev, cov choj, thiab cov qauv dav dav.
Txawm li cas los xij, nws "kev ua siab zoo" nyob ntawm daim ntawv thov. Nws muaj tsawg corrosion resistance (nws yuav xeb tshwj tsis muaj kev tiv thaiv) thiab tsis haum {{2} - sov daim ntawv thov qhov twg aliroy.
### 5. Dab tsi yog tus qauv Indian sib npaug ntawm Q235B hlau?
Tus qauv Indian sib npaug ntawm Q235b yog ** yog 2062 E250 **. Qhov "E250" txhais tau tias tsawg kawg yog 250 MPa, uas yog sib npaug rau Q235b muaj lub zog, xav txog qhov sib txawv ntawm cov qauv kev ntsuas thiab kev nyab xeeb. Ob qho tib si tsis - Alloy alllo qauv hlau siv rau zoo sib xws cov ntawv thov zoo li vaj tse thiab choj. Qib A lossis B ntawm yog 2062 E250 tuaj yeem raug xaiv raws li kev ua tau zoo thiab kev ntsuam xyuas kom phim Q235B.
