S275J0 yog tus qauv European (EN 10025-}2) tsis yog- alloy structural steel paub rau nws cov weldability zoo, lub zog (tsawg kawg 275 MPa tawm los), thiab cuam tshuam toughness mus rau 0 degree, qhia los ntawm "J0". Nws yog ntau yam khoom siv kub-kub siv hauv kev tsim kho, txuas hniav, tshuab, thiab kev tsim vaj tsev dav dav, muab kev sib npaug ntawm kev ua tau zoo thiab kev yooj yim, feem ntau muab cov khoom siv rau kev tsim kho.
Cov yam ntxwv tseem ceeb
TxujTS EN 10025-2 (Tebchaws Europe tus qauv).
Hom: Tsis yog - alloy structural steel.
Lub zog: Yam tsawg kawg nkaus tawm lub zog ntawm 275 MPa (megapascals).
Impact Test: Yuav tsum muaj Charpy qhov kev ntsuam xyuas yam tsawg kawg 27 Joules ntawm 0℃(zero degrees Celsius).
Weldability: Yooj yim weldable, ua rau nws haum rau ntau yam kev tsim kho.
Daim ntawv thov: Lub tsev, txuas hniav, kev tsim kho dav dav, engineering machinery (excavators, cranes), thiab lwm yam khoom siv.
Cov npe
S: Steel Qauv.
275: Yam tsawg kawg nkaus tawm lub zog (MPa).
J0: Kev ntsuas cuam tshuam ntawm 0 degree.
Cov Qauv & Cov Qauv
Muab khoom raws li daim hlau, ntawv, seem, tuav, thiab rods.
Feem ntau xa tuaj rau hauv cov xwm txheej zoo li qub lossis tsis kho rau kev tsim kho, tab sis kuj tuaj yeem quenched thiab tempered.
Tshuaj muaj pes tsawg leeg
| Variant | Ntxig | Weldability | C % | Mn% | P % | S % | Cu% | N % | |
|---|---|---|---|---|---|---|---|---|---|
| SIB 1312 | CC | CEVmax | Min | - | - | - | - | - | - |
| Pcmmax | Max | 0.17 | 1.40 | 0.040 | 0.040 | - | 0.0120 | ||
| S235JR EN10025-2 (ref.) | Std | CEV 0.35max | Min | - | - | - | - | - | - |
| pwm 0.25max | Max | 0.17 | 1.40 | 0.035 | 0.035 | 0.55 | 0.0120 |
S235JR: C max 0.20% rau qhov ntau thiab tsawg tshaj 40 hli. Tsuas yog CEV xav tau hauv tus qauv
Tus nqi ntawm S275J0 steel yog cuam tshuam los ntawm kev sib xyaw ua ke ntawm cov khoom lag luam thoob ntiaj teb, cov nqi tsim khoom, thiab cov khoom lag luam- cov hloov pauv tshwj xeeb. Txawm hais tias muaj ntau tus neeg tsav tsheb zoo ib yam li lwm cov qauv hlau, qhov "J0" qhov yuav tsum tau ua kom muaj zog ntxiv ib qho nqi me ntsis ntawm cov qauv qib xws li S275JR.
Primary Price Influencers:
| Qeb | Tej yam tshwj xeeb |
|---|---|
| 1. Cov nqi raw khoom | Hlau Ore & Cov Nqi Them Nqi: Cov qauv ntsuas thoob ntiaj teb (piv txwv li, hlau ore yav tom ntej, shredded seem indexes) teeb tsa tus nqi. Cov nqi khib nyiab hnyav hnyav rau hluav taws xob arc rauv (EAF) ntau lawm, muaj nyob hauv Europe. |
| 2. Ntau lawm & Zog | Tus nqi zog: Steelmaking yog lub zog- hnyav heev. Volatility nyob rau hauv hluav taws xob, natural gas, thiab thee nqi ncaj qha cuam tshuam rau melting, dov, thiab normalizing (kub kho rau S275J0) cov nqi. |
| 3. Kev Lag Luam Dynamics | Kev xav tau-Supply Balance: Kev thov siab los ntawm kev tsim kho, kev tsim kho vaj tse, thiab cov tshuab siv hnyav hauv huab cua txias tuaj yeem ua kom nruj cov khoom siv. Lub caij nyoog spikes (piv txwv li, ua ntej-kev tsim kho lub caij ntuj no) yuav cuam tshuam rau cov nqi hauv cheeb tsam. |
| Txoj Cai Kev Lag Luam Thoob Ntiaj Teb: Cov nqi se, quotas, lossis tiv thaiv- cov dej num pov tseg (piv txwv li, EU kev tiv thaiv) ntawm cov khoom siv hlau cuam tshuam rau kev lag luam hauv kev sib tw thiab nqi. | |
| 4. Khoom Specifications | Daim ntawv pov thawj toughness ("J0"): Yuav tsum tau kuaj Charpy ntawm 0℃ntxiv kev tswj xyuas zoo thiab cov nqi kuaj tsis zoo rau cov qib tsis yog- kuaj lossis "JR" qib. |
| Form & Dimensions: Cov nqi sib txawv raws li cov khoom lag luam- daim hlau, nplooj ntawv, kab teeb, lossis cov ntu kev cai-nrog cov profiles nyuaj ua kom them nqi siab dua. | |
| Quantity & Order Size: Kev txiav txim ntau (tag nrho cov tsheb thauj khoom / zeb tonnes) tau txais cov luv nqi tseem ceeb piv rau cov khw muag khoom me me. | |
| Certification & Traceability: Cov kev xav tau ntxiv (piv txwv li, EN 10204 3.1/3.2 daim ntawv pov thawj, cov ntaub ntawv tshuaj tshwj xeeb) nce nqi tswj hwm thiab kuaj. | |
| 5. Logistics & Geography | Cov Nqi Tsheb Thauj Mus Los: Qhov deb ntawm zeb / chaw pabcuam mus rau qhov chaw ua haujlwm, cov nqi roj ntxiv, thiab cov khoom thauj khoom muaj feem cuam tshuam rau tus nqi xa tawm. |
| Cov Kev Lag Luam Hauv Cheeb Tsam: Cov nqi sib txawv thoob plaws EU, UK, North America, thiab Asia vim yog cov khoom siv hauv zos, cov nqi hluav taws xob, thiab kev tswj hwm ib puag ncig (xws li EU cov se ciam teb carbon). | |
| 6. Macroeconomic Factors | Cov txiaj ntsig hloov pauv: Raws li cov khoom siv raw tau pauv hauv USD, qhov tsis muaj zog euro lossis phaus tiv thaiv tus duas nce nqi rau cov neeg yuav khoom nyob sab Europe. |
| Inflation & Interest Rate: General inflation nce ntau lawm thiab nqi zog; Cov paj laum ntau dua tuaj yeem ua rau kev tsim kho kev xav tau, cuam tshuam tsis ncaj qha rau cov nqi. |
Vim li cas S275J0 yuav raug nqi ntau dua S275JR:
Txhim khu kev tswj tau zoo:Lub guaranteed cuam tshuam toughness ntawm0 degreeyuav tsum tau muaj kev tswj xyuas cov tshuaj lom neeg, ua kom zoo li qub / kev kho cua sov, thiab kev sim batch.
Limited Production Volume:S275J0 feem ntau yog tsim nyob rau hauv me me, tshwj xeeb batch piv rau siab -cov khoom ntim qib zoo li S235JR.
Certification Nyiaj siv ua haujlwm:Mill daim ntawv pov thawj nrog cov txiaj ntsig kev ntsuas cuam tshuam ntxiv kev tswj hwm thiab cov nqi kuaj.
1. S275J0 steel yog dab tsi?
S275J0 yog ib qho uas tsis yog- alloy structural steel qib ib EN 10025-2, nrog rau qhov tsawg kawg nkaus lub zog ntawm 275 MPa thiab lav qhov cuam tshuam toughness ntawm 0℃.
2. Qhov 'J0' hauv S275J0 txhais li cas?
Lub 'J0' qhia tias Charpy V- ntsuas qhov cuam tshuam ntawm 0 degree, kom ntseeg tau tias lub zog nqus tsawg kawg ntawm 27 Joules siv rau hauv qhov chaw txias.
3. Qhov txawv ntawm S275JR thiab S275J0 yog dab tsi?
S275JR raug kuaj xyuas ntawm +20 degree, thaum S275J0 raug kuaj ntawm 0 degree, ua J0 haum rau cov qauv raug rau ze - khov kub.
4. Cov ntawv thov tseem ceeb ntawm S275J0 yog dab tsi?
Nws yog siv rau hauv cov khoom siv rau cov txuas hniav, cov tsev, thiab sab nraum zoov infrastructure nyob rau hauv temperate climates qhov twg kub yuav poob mus rau 0 degree.
5. Lub zog tawm ntawm S275J0 yog dab tsi?
Qhov tsawg kawg nkaus yield zog yog 275 MPa rau thicknesses mus txog 16 hli, nrog txo qhov tseem ceeb rau thicker seem raws li tus qauv.
6. S275J0 puas tuaj yeem welded?
Yog lawm, S275J0 muaj weldability zoo. Txawm li cas los xij, preheating lossis tswj cov txheej txheem yuav raug pom zoo rau cov ntu tuab lossis vuam hauv cov xwm txheej txias.
7. Puas yog S275J0 sib npaug rau ASTM A572 Qib 50?
Tsis ncaj. Txawm hais tias ob qho tib si muaj lub zog zoo sib xws (~ 345 MPa rau A572 Gr 50 vs . 275 MPa rau S275J0), A572 Qib 50 muaj lub zog ntau dua thiab cov kev xav tau sib txawv.
8. Cov tshuaj muaj pes tsawg leeg ntawm S275J0 yog dab tsi?
Nws feem ntau muaj max 0.21% Carbon, max 1.50% Manganese, thiab tswj qib ntawm phosphorus thiab sulfur (piv txwv li, P Tsawg dua lossis sib npaug li 0.035%, S Tsawg dua lossis sib npaug li 0.035%).
9. Puas yog S275J0 corrosion resistant?
Tsis yog, S275J0 tsis yog corrosion- tiv taus thiab yuav tsum muaj cov txheej txheem tiv thaiv xws li pleev xim lossis galvanizing rau sab nraum zoov.
10. Qhov txawv ntawm S275J0 thiab S355J0 yog dab tsi?
S355J0 muaj qhov siab tshaj qhov ua tau zoo tshaj plaws (355 MPa) tab sis zoo sib xws cuam tshuam toughness ntawm 0 degree, ua rau nws muaj zog rau txias - huab cua kev siv.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
