Dab tsi yog qhov sib npaug ntawm S275 steel hauv Asmeskas cov qauv? Muaj kev sib piv sib piv thiab kev qhia

Nyob rau hauv lub ntiaj teb ntawm cov txheej txheem tsim thiab kev to taub hlau qib sib txawv thoob ntiaj teb yog qhov tseem ceeb rau cov haujlwm thoob ntiaj teb. Yog tias koj tab tom nrhiav rau "Dab tsi yog qhov sib npaug ntawm S275 hauv Asmeskas tus qauv," koj yuav cuam tshuam nrog cov kev tsim kho, lossis fabrication uas European thiab Asmeskas cov qauv xav tau dlhos.

S275, yog cov qauv txheej txheem hluav taws xob hauv qab European ENTER, yog siv dav rau nws cov nyiaj tshuav, weldability, thiab tus nqi- ua hauj lwm zoo.

Tab sis dab tsi yog nws cov kev sib tw ze tshaj plaws hauv Asmeskas Astm system? Hauv cov lus qhia ntxaws ntxaws no, peb yuav tshawb txog S275 hlau sib npaug hauv Asmeskas cov qauv, muab kev nkag siab los pab koj kom txiav txim siab txiav txim siab rau koj qhov project tom ntej.

Ua ntej dhia rau hauv "S275 sib npaug hauv Astm cov qauv," Peb tawg cia li S275 hlau yog dab tsi. S275 yog ib feem ntawm cov EN 10025-} 2 cov lus qhia, uas npog tsis {{} aleal qauv qauv hlau. Cov "s" sawv rau cov qauv, thiab "275" yog hais txog nws li tsawg zog lub zog ntawm 275 MPa (mpa.gnals) rau thicknesses txog li 16 hli. Cov qib no los hauv cov kev sib txawv uas zoo li S275JR, S275JR, S275J0, thiab S275J0, txhua tus nrog sib txawv me ntsis hauv kev cuam tshuam nyuaj thiab tshuaj lom neeg muaj pes tsawg leeg.

Cov khoom tseem ceeb ntawm S275 hlau muaj xws li:

• Tos lub zog: 275 Mpa (tsawg dua me ntsis rau cov tuab tuab).
• Lub zog tensile: 410-560 mpa.
• Elongation: tsawg kawg 20% ​​nyob rau hauv kev xeem ntev.
• Kev cuam tshuam hluav taws xob: sib txawv los ntawm sub - qib; Piv txwv li, S275JR tsis muaj kev xeem yuam kev, thaum S275J2 yuav tsum muaj 27 hli ntawm -20 degree.

• Chemically, S275 muaj cov ntsiab lus ntau rau cov roj carbon ntau tshaj plaws ntawm 0.25%, manganese nce txog 1.60%, thiab leej faj rau kev txhim kho wardability. Nws yog feem ntau siv nyob rau hauv kev ua haujlwm hauv kev ua haujlwm, txuas hniav, Machinery qhov chaw, thiab offshore qauv vim nws cov versatility. Yog tias koj tau nug cov qauv "S275 txheej txheem steel cov khoom thiab siv," Nco ntsoov tias nws tau ua raws li Eurocodes thiab yooj yim ntawm cov fabrication.

Thaum nug "American tus qauv sib npaug rau S275 hlau?" Nws yog qhov tseem ceeb kom nkag siab txog Asmeskas cov txheej txheem. Cov neeg Asmeskas haiv neeg rau kev sim thiab cov ntaub ntawv (ASTM) dominates, nrog cov qauv zoo li ASTM A36, A572, thiab A992 cov qauv sib dhos. Tsis zoo li cov kev ua kom pom tseeb rau cov txiaj ntsig muaj zog, cov qhab nia ntawm Astm feem ntau qhia meej ob qho txiaj ntsig thiab cov kev xav tau rau kev ua haujlwm thiab tawv.

ASTM cov qauv tau hais tawm dav nyob rau hauv North America rau kev tsim kho, kev kawm ua seismic zones, siab}} Cov ntawv thov Vaj tse, thiab cov ntawv thov muaj kev lag luam. Rau cov kev tshawb nrhiav rau "txawv ntawm EN 10025 thiab nco ntsoov tias ASTM nyhav uas Astm nyhav muaj kev ua kom dav dav tab sis kev ntsuas stricter hauv qee kis.

Qhov feem ntau tau lees txais "qib sib npaug ntawm S275 hauv Asmeskas tus qauv" yog ASTM A36. Qhov kev sib txig sib txig sib luag yog raws li cov khoom siv khomob sib xws, ua A36 ib qho mus {} {4 4}} binal candder engineering tej yaam num. Raws li kev lag luam hla {{}}}}} Cov khoom siv zoo li cov khoom siv hauv ntiaj teb thiab cov qauv hlau qauv kev sib hloov hauv ntiaj teb, S275JR yog qhov piv rau ATTM A36.

Ntawm no yog cov ncauj lus kom ntxaws "S275 vs ASTM A36 sib piv" kom tau hais txog vim li cas lawv muaj sib npaug:

Tshuaj Yeeb Nkab Sib Piv

Ob qib tsawg -} cov hlau hlau, txhawb kev weldability zoo yam tsis muaj preheating feem ntau.

Ntsiab lus:

• Cov pa roj carbon (c): S275 Max 0.25%; A36 Max 0.26% - Zoo heev, txo kev pheej hmoo ntawm brittleness.
• Manganese (MN): S275 Max 1.60%; Ib qho 36 0.80-1.20% - A36 muaj ntau qhov sib zog tab sis zoo sib xws ntawm lub zog.
• Phosphorus (p) thiab Sulphur (s): ob leeg txwv rau 0.040-0.050% Max, ua kom huv thiab xeb tsis kam.

Thaum cov no ua rau ATTM A36 qhov "zoo tshaj American sib npaug rau S275 qib qib," sib txawv me me, "sib txawv me ntsis muaj nyob. Piv txwv li, A36 tso cai rau cov ntsiab lus tooj liab ntau dua rau cov atmospheric zoo dua, uas tej zaum yuav zoo dua nyob rau sab nraum zoov Asmeskas cov phiaj xwm.

Yog tias koj tshawb rau "S275 steel hlau sib txuas kev xaiv" Nplooj Siab A36 Poob Luv ​​{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Xaiv cov:

ASTM A572 Qib 42: Muaj tsawg kawg cov paib ntawm 290 MPA, los ze rau S275 rau cov phiaj thicker. Nws yog ib kauj ruam yog tias koj xav tau "lub zog siab dua s275 hauv Astm."

ASTM A1011 SS Qib 40: Rau cov ntawv thiab coil daim ntawv, qhov sib phim S275 cov txiaj ntsig tab sis yog ntau dua rau cov ntawv thov kev lag luam.

API 5L Qib B: Hauv Pipeline Cov Ntsiab Lus, Qhov no tuaj yeem hloov chaw, txawm tias nws tsis yog cov txheej txheem ncaj qha.

Yuav tsum tau sab laj sib npaug sib npaug los ntawm cov chaw txhim khu kev qha zoo li Matmatch xws li tuab, kev kho kom sov, thiab ntawv pov thawj.

Hauv cov ntsiab lus, yog tias koj xav tsis thoob "Yuav siv ATTM A36 li S275 sib npaug hauv kev tsim kho Welded, kab teeb, thiab cov hlau. S275 yog nthuav dav nyob rau hauv European choj thiab cov tuam tsev, thaum A36 Dominates Asmeskas Infrastretretructure Zoo li Golden Girg retrofits.

Cov Kev Saib Xyuas Tseem Ceeb:

• Daim ntawv pov thawj thiab ua raws li: kom cov hloov chaw ua raws li cov lej ua haujlwm (piv txwv li, aws, aws rau vuam). Dual - Daim ntawv pov thawj hlau (en / ttm) muaj los ntawm mills zoo li cov pob zeb.
• Tus nqi thiab muaj: A36 yog qhov pheej yig dua thiab muaj ntau yam muaj nyob hauv Asmeskas, muaj feem txo lub sijhawm txhuas rau "S275 sib npaug steel tus neeg siv hauv Asmeskas."
• Cov kev txwv: rau tsawg - kub lossis siab - kev siv flowbe, s275J2 yuav xav tau Astm A36 nrog kev txwv ntxiv (S5 rau Charpy cuam tshuam).
• Kev Lom Zem: Ob leeg yog rov ua dua tshiab, tab sis tshawb xyuas rau eco {{}} Tus phooj ywg sib txawv yog tias koj cov lus nug suav nrog S275 hlau. "
• Cov kws tshaj lij feem ntau siv cov software nyiam autocad lossis tsom xam cov cuab yeej rau simulate kev ua tau zoo ua ntej hloov chaw.

To summarize, the "equivalent grade of S275 in American standard" is primarily ASTM A36, offering a reliable match for most structural needs with comparable strength, weldability, and versatility. Txawm hais tias koj yog tus kws ua choj sib piv "S275JR VS A36 steel khoom" lossis tus kws tshaj lij steel rau hauv European mus rau cov neeg Asmeskas hlau qib, "Cov lus qhia no muab qhov tob uas koj xav tau.

Txawm li cas los xij, ib txwm txheeb xyuas nrog cov ntawv ceeb toom khoom siv (MTS) thiab sab laj cov qauv kev nyiam cov qauv zoo li ASTM lossis EN rau cov lus qhia tshiab, raws li cov lus qhia tuaj yeem hloov zuj zus.

Yog muaj lus nug lossis lus nug, thov hu rau kuv

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