S355J0 H-beam steelyog siv dav siv qis - carbon structural steel qib raws li European tus qauv EN10025-2. Nws cov ntsiab lus qis carbon thiab tsis muaj cov ntsiab lus alloying muab:
Muaj zog tensile zoo
Zoo heev toughness thiab plasticity
Zoo machinability, weldability, thiab tag nrho cov khoom ua
Cov yam ntxwv no ua rau S355J0 H-beams zoo tagnrho rau kev cob qhia, txuas hniav, nkoj, siab- cov tsev nce siab, thiab kev siv cov qauv siv dav dav.
Chemical Composition (Max%)
| Qib Steel | C | Mn | Si | P | S | N | Cu | Lwm yam | CEV |
|---|---|---|---|---|---|---|---|---|---|
| S355J0 | 0.24 | 1.60 | 0.55 | 0.040 | 0.040 | 0.012 | 0.55 | – | ≤0.45 (≤30 mm), ≤0.47 (>30 hli) |
Notes: Values vary slightly with nominal thickness (≤16 mm, >16 mm, ≤40 mm, >40 mm).
Mechanical Properties
| Qib | Nominal Thickness (hli) | Yield zog ReH (MPa) | Tensile zog Rm (MPa) | Tsawg kawg Elongation A (%) | Notch Impact Test Temp (degree) | Min. Absorbed Zog J |
|---|---|---|---|---|---|---|
| S355J0 | Tsawg dua los yog sib npaug li 16 | 355 | 470–630 | 22 | +20 | 27 |
| S355J0 | >16–40 | 345 | 470–630 | 21 | +20 | 27 |
| S355J0 | >40–63 | 335 | 450–600 | 20 | +20 | 27 |
| S355J0 | >63–80 | 325 | 450–600 | 18 | +20 | 27 |
| S355J0 | >80–100 | 315 | 450–600 | 18 | +20 | 27 |
| S355J0 | >100–125 | 295 | 450–600 | 18 | +20 | 27 |
Qhov tsawg kawg nkaus elongation yog xam nrog Lo=5.65 × SoLo=5.65 \\times \\sqrt{So}Lo=5.65 ×So
Cov khoom siv
S355J0 H-beams tau siv dav hauv:
Industrial Plants & Rhiav: Cov qauv tsim rau cov tshuab, cov cuab yeej ua haujlwm, thiab cov kab ntau lawm
High-Rise Buildings & Choj: Load-cov kab thiab kab kab rau thaj chaw, kev lag luam, thiab pej xeem infrastructure
Shipping & Maritime Structures: Vessel tsim, docks, thiab chaw nres nkoj
Lifting & Tsheb thauj mus los Machinery: Crane gantries, forklift qauv, thiab cov khoom hnyav txhawb nqa
Foundations & Support Structures: Piles, base frames, and structural supports for industrial facilities
Muaj Tshuag Muaj: Katalor Enterprises tuav ntau tshaj 1,000 tons ntawm S355J0 H- kab teeb hauv Tshuag txhua hli, ua kom cov khoom sai sai rau cov haujlwm loj.
S355J0 steel yog dab tsi thiab nws siv qhov twg?
S355J0 yog cov qauv siv dav siv hauv qib steel ua raws li EN 10025-2. Nws muaj qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa thiab ua ke zoo zog nrog zoo weldability. Nws cov khoom siv sib npaug ua rau nws tsim nyog rau kev tsim kho lub hauv paus, txuas hniav, tshuab hnyav, thiab lwm yam kev siv cov txheej txheem uas ob qho tib si lub zog thiab lub zog yog qhov tseem ceeb.
Dab tsi yog cov yam ntxwv ntawm S355J0?
S355J0 steel muab qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab lub zog tensile feem ntau ntawm 470-630 MPa, nyob ntawm thickness. Nws muaj qhov zoo ductility, tso cai rau cov qauv kom nqus tau lub zog hauv kev thauj khoom yam tsis muaj qhov tsis ua tiav sai. Lub npe "J0" qhia tau hais tias cov hlau raug kuaj rau qhov cuam tshuam ntawm qhov hnyav ntawm 0 degree, ua kom muaj kev nyab xeeb ntawm qhov kub thiab txias.
S355J0 ua haujlwm li cas hauv qab vuam?
Ua tsaug rau nws cov ntsiab lus tsis tshua muaj carbon, S355J0 muaj weldability zoo heev. Nws tuaj yeem txuas tau siv cov txheej txheem ib txwm siv xws li SMAW, GMAW, lossis FCAW nrog tsawg kawg preheating hauv ntau daim ntawv thov. Kev tswj xyuas kom zoo ntawm cov khoom siv hluav taws xob sib txuas thiab kev sib txuas yog pom zoo kom tiv thaiv kom tsis txhob muaj kev sib tw hauv zos los yog cov kev ntxhov siab, tshwj xeeb tshaj yog rau cov phaj tuab lossis cov pob qij txha nruj heev.
Vim li cas qhov cuam tshuam toughness tseem ceeb rau S355J0?
Impact toughness yog ib qho tseem ceeb hauv kev tiv thaiv nkig tawg nyob rau hauv cov loads tam sim ntawd los yog qis - kub. S355J0 ua tau raws li EN 10025 qhov yuav tsum tau ua rau 0℃cuam tshuam kev sim, ua rau nws tsim nyog rau kev siv cov txheej txheem qhov twg txias txias - qhov kub thiab txias yuav tsum tau ua. Rau qhov chaw txias dua, lwm qib zoo li S355J2 lossis S355K2 yuav nyiam.
S355J0 piv nrog rau lwm yam steels li cas?
Piv nrog rau S275JR, S355J0 muaj lub zog tawm los ntau dua, tso cai rau cov seem me me, sib dua yam tsis muaj kev cuam tshuam cov qauv kev ntseeg siab. Nws kuj yog tsim nyog rau welded thiab fabricated lug vim nws ua ke ntawm lub zog, toughness, thiab weldability. Piv nrog rau siab -lub zog quenched-thiab- tempered steels xws li S690, S355J0 yooj yim dua rau fabricate thiab weld tab sis muaj zog qis dua, ua rau nws yooj yim dua rau kev tsim kho.
Dab tsi fabrication txiav txim siab yog pom zoo rau S355J0?
Thaum S355J0 yooj yim rau kev ua hauj lwm nrog ntau dua - lub zog steels, tseem yuav tsum tau ua tib zoo saib xyuas cov phaj tuab, txheej txheem vuam, thiab tshuaj xyuas cov pob qij txha tseem ceeb. Rau cov txheej txheem welded hnyav, tswj kev sib tshuam ntawm qhov kub thiab txias, tsis txhob muaj cua sov ntau dhau, thiab ua kom zoo tshaj plaws- kev tshuaj xyuas vuam yuav tuav cov khoom siv lub zog thiab tawv.