1. ** Dab tsi yog khoom siv s235? **
S235 yog ib qib kev tsim qauv hlau raws li European Cov Qauv Kawm Ntawv raws li European Cov Qauv Kawm 10025 (yav dhau los Fe 360 hauv Cov Qauv Qub). Nws kos npe rau qhov tsis - almoy txheej txheem steel nrog rau ib qho xwm txheej muaj zog ntawm 235 mpawmacals) ntawm ib tug tuab ntawm 16 hli lossis tsawg dua. Nws yog feem ntau siv nyob rau hauv kev tsim kho dav dav, thav duab, thiab lwm yam kev thov ua kom muaj zog tsis yog thawj qhov yuav tsum tau ua. Qhov tseem ceeb tsim "S235" implies tus qauv qib theem tsis muaj kev cuam tshuam cov kev cuam tshuam tshwj xeeb.
2. ** Dab tsi yog sib npaug rau S235JR cov khoom? **
Qhov "JR" Suffix hauv S235JR qhia tau tias cov hlau tau raug sim ntawm ** Chav Chav (20℃F) ** Nrog qhov tsawg kawg ntawm kev nqus lub zog hluav taws xob. Qhov tseem ceeb sib npaug suav nrog:
* ** AVTM A36 (USA): ** Qhov no yog qhov sib npaug zoo tshaj plaws. Ob qho tib si yog General - lub hom phiaj qauv cov hlau nrog cov txiaj ntsig zoo sib xws thiab cov tensile lub zog. A36 tau pom dav dav raws li kev hloov pauv tau nrog S235JR rau ntau daim ntawv thov, tab sis cov tshuaj sib txawv me muaj sib txawv muaj nyob.
* ** JIS SS400 (Nyiv): ** Feem ntau siv Japanese cov khoom siv hlau qauv rau S235JR.
* ** GB / T 700 Q235B (Suav teb): ** Cov kev cuam tshuam ntawm Suav (** tshwj xeeb Q235A (Tsis muaj kev lees paub cov khoom cuam tshuam cuam tshuam) yog los ze dua rau qhov pib ntawm S235.
* ** DIN ST37 {{- 2 (Lub teb chaws Yelemees - Txheej Txheem Tshiab - Cov Qauv Qub Feem Ntau Siv Interchangeagesly nrog S235JR.
* ** BS 4360 Qib 4360 (UK - tus qauv qub dua): ** Ib tug laus dua British sib npaug.
** CEEB TOOM TSEEM CEEB: ** "Kev sib txig sib luag" nyob ntawm cov khoom ntiag tug ntawm daim ntawv thov (tshwj xeeb yog kev nyuaj). ASTM A36 thiab GB / T 700 Q235B yog cov nquag siv kev sib txig sib luag.
3. ** Yog suav cov hlau zoo siab? **
Suav cov hlau zoo "zoo dua **. Suav teb yog lub ntiaj teb loj tshaj steel tsim thiab muaj:
* ** High {- Cov neeg tsim khoom zoo: ** HBIS), thiab HBISE ua cov qauv hlau, xws li ISO, ASO, ETTM, en, JIS). Cov hlau no tau xa tawm thoob ntiaj teb thiab siv hauv kev thov cov ntawv thov zoo li tsheb, khoom siv, thiab khoom tseem ceeb.
* ** QIB COV NEEG ZOO TSHAJ PLAWS ZOO: ** Tseem muaj ntau cov mills me me tsim cov hlau feem ntau rau kev ua lag luam hauv tsev. Qhov tsis zoo los ntawm cov mills tuaj yeem tsis raug cai, qee zaum tsis muaj tshuaj lom neeg tswj, cov khoom siv neeg kho tshuab, nto tiav, lossis muaj kev phom sij. Cov teeb meem zoo li tsis txaus dazidation ua rau porosity lossis brittleness tau tshaj tawm.
* ** Cov yam ntxwv muaj txiaj ntsig zoo: ** Qhov zoo nyob ntawm cov zeb zeb loj, cov qauv uas lawv ua raws li, lawv cov txheej txheem tswj, thiab kev ua lag luam zoo. Cov txiv neej suav tseem muab cov kev lag luam thoob ntiaj teb tsim kev lag luam siab feem ntau ua rau cov siab tawv- Cov hlau zoo sib piv rau ntawm Tebchaws Europe, Nyij Pooj, lossis Asmeskas. Vim kev rau siab rau cov khoom siv tshwj xeeb thiab zeb yog qhov tseem ceeb heev.
4. ** Dab tsi yog qhov txawv ntawm S235 thiab S355 steel? **
Thawj qhov sib txawv yog ** lub zog **:
* ** S235: ** Tsawg kawg cov paib lub zog =}}}}} ** (tsawg dua lossis sib npaug nrog 16 hli thickness). Yam tsawg kawg tensile lub zog=360-510 mpa.
* ** S355: ** Tsawg kawg cov paib lub zog =}}}}} ** 355 mpa ** (tsawg dua lossis sib luag rau 16 hli thickness). Yam tsawg kawg tensile lub zog=470-630 mpa.
* ** ** SELITENTS: ** S355 yog muaj zog dua S235. Qhov no tso cai rau:
* Cov txheej txheem sib dua (siv cov khoom siv tsawg dua rau tib lub load - cov kabmob muaj peev xwm).
* Ntau dua load - Cov kabmob muaj peev xwm rau cov qauv ntawm tib lub loj / qhov hnyav.
* Siv hauv cov ntawv thov ntau dua (piv txwv li, txuas hniav, thaj chaw ntawm thaj yeeb, tshuab hnyav, cov tshuab hnyav).
* ** S355 feem ntau muaj cov ntsiab lus ntau dua (zoo li cov pa roj av, manganese, silican) thiab / lossis kev tswj hwm kev ua kom ua tiav lub zog dua. Qhov no tuaj yeem cuam tshuam me ntsis lossis daim ntawv tsim nyog piv rau S235, txawm hais tias ob leeg yog feem ntau pom zoo rau kev siv vuam.
5. ** Dab tsi yog qhov txawv ntawm Astm A36 thiab S235JR? **
ASTM A36 (US) thiab S235JR (Tebchaws Europe) yog ** cov qauv sib txawv zoo sib xws
* ** Cim lub zog tshwj xeeb: **
* ** A36: ** Qhia rau tus * Tsawg kawg nkaus tensile lub zog * (250 mpa) tab sis tsis khi lub zog kom tuab (nws yog ib qho yuav tsum tau muaj nuj nqis).
* ** S235JR: ** TSHWJ XEEB A * Tsawg Tshaj Tawm Lub Zog * (235 MPa) uas tau hais meej meej tau hais tseg * Rau tuab rau 16mm *. Qhov muaj zog zog zog yuav txo qis me ntsis rau cov ntu thicker. Nws tseem qhia txog qhov tsawg kawg tensile lub zog (360-510 mpa).
* ** TEJ YAM PHIAJ: **
* ** A36: ** Puas yog * tsis * ib txwm xav tau Charpy V - cov kev cuam tshuam} tsis tshua muaj feem ntawm lub hauv paus tshwj xeeb. Cov kev ntsuas cuam tshuam yuav tau hais txog qhov xav tau ntxiv los ntawm tus neeg yuav khoom.
* ** S235JR: ** LUB "JR" Suffix * Mordation * Charpy V {} Cov Lus Cuam Tshuam Kev Ntsuas Nruab Nrab (20 degree) nrog qhov tsawg tshaj plaws lub zog nqus ntawm 27 Joules.
* ** QAUV KEV: **
* ** A36: ** muaj qhov tseem ceeb tshaj plaws rau carbon, mangelese, phosphorus, thiab leej faj, manganese (lwm yam tshaj li lub rooj sib tham / tawm los).
* ** S235JR: ** Muaj cov kev txwv ntau tshaj plaws rau cov pa roj carbon, leej faj, thiab phosphorus, thiab phosphorus, thiab hais txog cov ntsiab lus tsawg kawg nkaus (0.60% rau cov 40 hli).
* ** SIV QHOV TSEEM CEEB: ** Txawm tias muaj cov txuj ci sib txawv, lawv cov ntaub ntawv zoo li qub (duab zoo li lossis sib npaug heev. A36 feem ntau ua pov thawj lub zog muaj zog nyob ib ncig ntawm 250 MPa, zoo sib xws S235JR. Kev lees paub tej yam nyuaj (JR) yog qhov tseem ceeb tshaj plaws sib txawv rau cov ntawv thov uas tsawg}} kub ua tau qhov kev txhawj xeeb. Rau kev tsim kho dav dav ntawm huab cua kub, lawv tau txiav txim siab ncaj qha ncaj qha.
