S355 JRyog qhov siab -lub zog, qis- carbon structural steel qib (EN 10025) paub txog nws qhov zoo weldability thiab toughness, nrog "S" rau structural, "355" rau nws qhov tsawg kawg nkaus 355 MPa yield zog, thiab "JR" qhia tau tias nws dhau los ntawm Charpy impact 7 Jopule℃ntawm chav tsev kub (2. Nws tau siv dav hauv kev tsim kho, txuas hniav, cov tshuab hnyav, thiab kev tsim nkoj rau kev thauj khoom -cov kabmob uas xav tau lub zog thiab ua haujlwm ntev.
Cov yam ntxwv tseem ceeb
Lub zog:Siab tensile thiab yield zog (Ntau dua los yog sib npaug rau 355 MPa).
Weldability:Zoo heev, vim muaj cov ntsiab lus carbon tsawg, ua rau nws yooj yim rau vuam.
Toughness:Kev cuam tshuam zoo, lav los ntawm kev xeem "JR".
Kev faib tawm:Tsis yog- alloy, kub- dov structural steel.
Kev tawg lub npe
S:Cov qauv hlau.
355:Yam tsawg kawg nkaus Yield Strength nyob rau hauv MPa (rau thicknesses tsawg dua los yog sib npaug rau 16 hli).
JR:Qhov tshwm sim ntawm Charpy impact test (27 Joules ntawm +20℃).
S355JR tsis muaj ib qho ncaj qha sib npaug hauv lwm cov qauv thoob ntiaj teb vim qhov sib txawv ntawm cov txheej txheem txheej txheem. Txawm li cas los xij, nws tuaj yeem ua haujlwm sib luag lossis hloov tau los ntawm ntau qib raws li lub zog, tawv, thiab kev siv. Qhov sib tw ze tshaj plaws feem ntau yog los ntawm ASTM (USA) thiab ISO cov qauv.
Qhov Chaw Ua Haujlwm Zoo Tshaj Plaws / Sib Tw:
| Txuj | Muaj peev xwm sib npaug / Match | Qhov Tseem Ceeb Zoo sib xws & Qhov txawv tseem ceeb |
|---|---|---|
| ASTM (USA) | ASTM A572 Qib 50 | Zoo sib xws yield zog (~ 345 MPa vs. S355JR's 355 MPa rau nyias seem). Qhov sib txawv tseem ceeb: A572 Qib 50 tsis muaj qhov yuav tsum tau ua kom muaj zog toughness tshwj tsis yog tias tau teev tseg, thaum S355JR xav tau 27J ntawm +20℃. |
| ASTM A992 (rau cov qauv duab) | Yield zog 345-450 MPa, siv rau lub tsev thav duab. suav nrog qhov yuav tsum tau ua kom tawv nqaij (Charpy qhov yuav tsum tau), ua kom nws sib tw ze dua hauv kev xav thiab thov rau kev tsim kho. | |
| ISO | ISO 630-2 E355B lossis E355C | Zoo sib xws lub zog thiab tshuaj muaj pes tsawg leeg. ISO "B" thiab "C" kev xaiv muaj xws li kev ntsuas cuam tshuam (ntawm +20℃thiab 0 degree, feem). E355B yog qhov sib tw thoob ntiaj teb ze. |
| JIS (Nyiv) | SM490YA or SM490 YB | Lub zog zoo sib xws (Ntau dua lossis sib npaug ntawm 325 MPa), tab sis JIS qib muaj cov tshuaj sib txawv thiab tsis tas yuav tsum muaj kev cuam tshuam Charpy hauv cov khoom txheem. |
| EN (Tebchaws Europe) | S355J0 los yog S355J2 | Tib lub zog tab sis qhov sib txawv ntawm qhov kub thiab txias (0℃thiab -20℃). Tsis sib npaug rau chav-kub-tsuas daim ntawv thov tshwj tsis yog tias qhov ntsuas kub qis dua tau txais. |
Kev txiav txim siab tseem ceeb rau "Equivalency":
Lub zog:Ua kom muaj zog tsawg kawg nkaus (355 MPa rau Tsawg dua lossis sib npaug ntawm 16 hli tuab, txo qis rau cov ntu tuab).
Toughness:S355JR qhov yuav tsum tau ua 27J ntawm +20℃("JR") yog ib qho tseem ceeb uas yuav tsum muaj feem ntau ploj hauv cov qib ASTM tshwj tsis yog cov xwm txheej ntxiv raug txiav txim.
Thickness nyhuv:Tsis zoo li qee qib ASTM (piv txwv li, A572 Gr 50, uas tuav 345 MPa txog 100 mm phaj), S355JR lub zog tawm lostxo nrog thicknessRaws li EN 10025-2. Qhov no yuav tsum suav rau hauv kev tsim.
Tshuaj muaj pes tsawg leeg:Thaum zoo sib xws, qhov tso cai ntau yam rau carbon, manganese, thiab impurities txawv ntawm cov qauv, cuam tshuam rau weldability thiab formability.
Codes & Pom Zoo:Kev hloov pauv tsis siv neeg. Nws yuav tsum tau kev pom zoo engineering thiab ua raws li txoj cai tsim qauv (xws li Eurocodes vs. AISC) thiab txhua qhov project specifications.
Cov qib sib npaug ntawm cov hlau S355JR (1.0045)
Ceeb toom! Tsuas yog siv tau
| EU EN |
Teb chaws USA - |
Lub teb chaws Yelemees DIN, NWS |
Nyiv JIS |
Fabkis AFNOR |
England BS |
Canada HG |
European qub EN |
Ltalis UNI |
Belgium NBN |
Spain UNE |
Tuam Tshoj GB |
Sweden SS |
Inter ISO |
Portugal NP |
Is Nrias teb YOG |
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1. S355JR steel yog dab tsi?
S355JR yog ib qho tsis yog- alloy structural steel qib ib EN 10025-2, nrog rau qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab lav qhov cuam tshuam toughness ntawm chav tsev kub (+20℃).
2. Lub zog tawm ntawm S355JR yog dab tsi?
Qhov tsawg kawg nkaus tawm lub zog ntawm S355JR yog 355 MPa rau nominal thickness mus txog 16 hli, txo rau thicker seem raws li EN 10025-2.
3. 'JR' hauv S355JR txhais li cas?
Lub 'JR' qhia tias Charpy V-qhov ntsuas qhov cuam tshuam ntawm +20 degree, kom ntseeg tau tias lub zog nqus tsawg kawg nkaus ntawm 27 Joules rau qhov yooj yim toughness.
4. Puas yog S355JR sib npaug rau ASTM A572 Qib 50?
Tsis raws nraim. Txawm hais tias ob qho tib si muaj lub zog zoo sib xws (~ 345 MPa rau A572 Gr 50 vs . 355 MPa rau S355JR), lawv muaj cov qauv sib txawv thiab muaj cov tshuaj sib txawv thiab cov kev xeem.
5. Cov ntawv thov tseem ceeb ntawm S355JR yog dab tsi?
Nws yog dav siv nyob rau hauv kev tsim kho hnyav, txuas hniav, cov tsev lag luam, cranes, machinery thav duab, thiab cov qauv sab nrauv uas xav tau lub zog siab dua S275 qib.
6. Qhov txawv ntawm S355JR thiab S355J2 yog dab tsi?
S355JR raug kuaj ntawm +20 degree, thaum S355J2 raug kuaj ntawm -20 degree, ua J2 haum rau kev siv huab cua txias.
7. S355JR puas tuaj yeem welded?
Yog lawm, S355JR muaj qhov zoo weldability siv cov kev sib txawv, txawm hais tias preheating yuav tsum tau rau cov seem tuab lossis cov kev pabcuam nruj.
8. Cov tshuaj muaj pes tsawg leeg ntawm S355JR yog dab tsi?
Cov ntsiab lus muaj xws li max 0.24% Carbon, max 1.60% Manganese, thiab tswj phosphorus / sulfur (piv txwv li, P Tsawg dua lossis sib npaug li 0.035%, S Tsawg dua lossis sib npaug 0.035%).
9. Puas yog S355JR corrosion resistant?
Tsis yog, nws tsis yog corrosion-resistant. Kev tiv thaiv txheej xws li pleev xim lossis galvanizing yog tsim nyog rau qhov chaw sab nraum zoov lossis corrosive.
10. Qhov txawv ntawm S355JR thiab S275JR yog dab tsi?
Qhov sib txawv tseem ceeb yog lub zog: S355JR muaj lub zog qis dua qhov qis dua (355 MPa vs . 275 MPa), tso cai rau cov qauv sib dua lossis muaj zog dua.
11. Dab tsi yog cov khoom siv kho tshuab ntawm S355JR?
Cov khoom tseem ceeb muaj xws li yield zog Ntau tshaj los yog sib npaug rau 355 MPa (t Tsawg dua los yog sib npaug rau 16mm), tensile zog 470-630 MPa, thiab elongation yam tsawg kawg nkaus ntawm 20-22% nyob ntawm thickness.
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.
