Q355B steel phajyog qhov qis- alloy, siab- lub zog cov qauv carbon steel uas siv dav hauv kev tsim kho ua ntej, siab- cov qauv nce, thiab cov nroj tsuag muaj kev lag luam, thaum ua raws li GB / T 1591-2018 tus qauv.
Distinguished los ntawm nws superior weldability, siab tensile zog, thiab zoo heev durability, qib steel no yog ib tug zoo tagnrho cov ntaub ntawv rau fabricating kab, trusses, thiab beams, ua rau nws haum rau ntau yam loads - bearing structures thiab coj mus muag tsev daim ntaub ntawv.
Dab tsi yog High -Lub zog Q355B Steel Phaj?
High-lub zog Q355B steel phaj yog qis- alloy, siab- lub zog steel phaj txhais los ntawm Suav tus qauv GB/T 1591-2018; Cov qib steel no muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab weldability zoo heev. Raws li cov khoom siv ntau yam, Q355B tau siv dav hauv kev tsim kho, cov tshuab hnyav, lub tsev choj, thiab kev tsim nkoj, thiab feem ntau suav hais tias yog niaj hnub, kev ua tau zoo thiab hloov pauv rau Q235 thiab Q345 steels.
Tshuaj muaj pes tsawg leeg ntawm Q355B steel phaj
| Khoom siv | C | Si | Mn | P | S | Cr. | Ni | Cu | N |
| Q355B | Tsawg dua lossis sib npaug li 0.20% | Tsawg dua lossis sib npaug li 0.55% | Tsawg dua lossis sib npaug li 1.60% | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.30% | Tsawg dua lossis sib npaug li 0.30% | Tsawg dua lossis sib npaug li 0.40% | Tsawg dua lossis sib npaug li 0.012% |
Mechanical Properties ntawm Q355B steel phaj
| Khoom | Tus nqi / Ntau Yam (Metric) |
|---|---|
| Yield zog (0.2% offset) | 355 MPa (Min) |
| Tensile zog | 470 - 630 MPa |
| Elongation | Ntau dua lossis sib npaug li 20% |
| Impact Strength (Charpy) | Ntau dua lossis sib npaug li 27 J |
| Impact Test Temp | +20 degree |
Vim li cas thiaj xaiv Q355B Steel Phaj rau Prefabricated Steel Tsev?
Siab zog thiab Load-Bearing Capacity:Q355B muaj lub zog ua haujlwm siab (feem ntau yog 355 MPa) - kwv yees li 40% siab dua li cov hlau qis qis - carbon hlau. Kev siv Q355B tso cai rau txo qis ntawm tus ntoo khaub lig- qhov ntev ntawm cov khoom siv; qhov no tsis tsuas yog txo lub tsev lub tsheb tuag tab sis kuj ua rau kom siv tau qhov chaw sab hauv.
Seismic Resistance thiab Tsawg-Tub kub Toughness:Q355B nthuav tawm cov tawv tawv zoo heev (tus qauv "B" qhia tau hais tias muaj kev cuam tshuam hnyav ntawm 20 degree), ua kom nws nqus tau lub zog thaum muaj kev puas tsuaj ntuj xws li av qeeg thiab yog li ua kom muaj kev nyab xeeb ntawm cov qauv. Tsis tas li ntawd, cov hlau no khaws cov khoom siv kho tshuab ruaj khov hauv qhov chaw qis - qhov kub thiab txias, ua rau nws tsim nyog rau kev tsim kho cov haujlwm thoob plaws ntau thaj chaw.
Weldability zoo heev thiab kev ua tau zoo:Raws li qis- alloy cov qauv hlau, Q355B sib xyaw ua ke lub zog siab nrog zoo weldability. Cov cwj pwm no yog qhov tseem ceeb rau lub Hoobkas -raws li vuam thiab ntawm - cov txheej txheem kev teeb tsa ntawm qhov chaw koom nrog hauv kev tsim kho ua ntej, ua kom muaj kev ruaj khov thiab kev ncaj ncees ntawm kev sib txuas ntawm cov khoom.
Txhim kho kev tsim kho kom zoo:Raws li cov khoom tseem ceeb hauv prefabricated thiab modular tsim, Q355B raug txiav, vuam, thiab xeb tshem tawm nyob rau hauv lub Hoobkas ib puag ncig, tsuas yog hoisting thiab bolted kev twb kev txuas yuav tsum tau ua nyob rau hauv - site. Txoj hauv kev no tsis yog tsuas yog ua kom lub voj voog kev tsim kho tag nrho tab sis kuj txo qis ntawm -qhov chaw ua haujlwm siv zog thiab txo cov pa phem ib puag ncig.
Daim ntawv thov ntawm Q355B Steel Phaj rau Prefabricated Steel Tsev
Load-Cov Kabmob Cov Kabmob:Q355B ua lub luag haujlwm tseem ceeb rau kev tsim cov txheej txheem tseem ceeb ntawm cov tsev siab -nce thiab loj- nplai steel industrial nroj tsuag; Nws yog siv los tsim cov khoom tseem ceeb-cov kabmob xws li kab teeb thiab kab.
Prefabricated Composite Phab Ntsa:Hauv cov haujlwm tsim kho modular- suav nrog cov tsev kawm ntawv, tsev kho mob, cov tsev apartment complexes, thiab ntau-cov tsev pej xeem dab neeg-Q355B feem ntau yog siv los tsim "truss-stiffened, multi-kab noj hniav sib xyaw steel shear phab ntsa."
Portal Frame Structures:Hauv cov txheej txheem steel prefabricated xws li cov tsev khaws khoom thiab cov chaw ua haujlwm, Q355B steel phaj feem ntau ua tiav rau hauv H-beams los ua tus thawj thauj khoom-cov kabmob, ua haujlwm nrog C- thiab Z- ntu steel cov tswv cuab (purlins) kom yooj yim sib dhos ceev.
Tshwj xeeb Structures thiab Sab nrauv phab ntsa:Tshaj li cov txheej txheem tseem ceeb, Q355B steel daim hlau kuj tseem siv rau hauv kev tsim kho lub tsev ru tsev, pem teb slabs, thiab sab nrauv phab ntsa, ua kom lawv zoo- haum rau cov ntawv thov uas xav tau kev tsim kho siab.
S355JR vs. Q355B Steel Phaj: Yuav Xaiv Li Cas?
Ob qho Q355B thiab S355JR yog qis- alloy, siab - lub zog steels muaj cov khoom zoo sib xws. Tshwj xeeb, Q355B (Suav Standard GB / T 1591) yog qhov kev xaiv zoo tshaj plaws rau cov haujlwm nyob hauv Suav teb lossis Asia, qhov S355JR (European Standard EN 10025-2) yog qhov kev xaiv zoo tshaj plaws rau cov haujlwm nyob sab Europe. Hauv kev siv kev tsim kho dav dav, ob qib steel no tuaj yeem siv sib hloov tau, yog tias qhov cuam tshuam rau qhov yuav tsum tau muaj zog (ua tiav 27 J ntawm +20 degree) tau ua tiav.
Yuav xaiv li cas?
Qhov project qhov chaw thiab cov qauv:
Yog tias qhov project ua raws li Suav cov qauv (GB / T 1591), nws raug nquahu kom xaiv Q355B steel.
Yog tias qhov project nyob hauv Europe lossis ua raws li European cov qauv (EN 10025-2), S355JR steel yuav tsum raug xaiv.
Impact Toughness Requirements:
Ob qho ntawm cov qib uas tau hais tseg saum toj no yuav tsum tau kuaj xyuas qhov ntsuas kub ntawm +20 degree, nrog rau qhov tsawg kawg nkaus ntawm lub zog yuav tsum muaj ntau dua lossis sib npaug li 27 J.
Yog tias qhov project tsim cov kev cai nruj dua hais txog qhov qis- qhov kub thiab txias (yuav tsum tau kuaj ntawm 0℃lossis -20 degree), qib Q355C/D lossis S355J0/J2 yuav tsum tau teev tseg es tsis txhob Q355B/S355JR.
Welding thiab Processing:
Q355B steel nthuav dav weldability zoo heev, nrog kev ua haujlwm vuam piv rau S355JR.
Rau kev tsim cov khoom tseem ceeb, S355JR + N (Normalized) steel yog qee zaum muab kev nyiam los ua kom muaj qib siab dua ntawm cov khoom siv hauv microstructure.
Khoom siv thiab nqi:
Hauv kev lag luam Esxias, Q355B steel feem ntau muaj nyob rau ntawm tus nqi qis.
Hloov pauv, hauv kev ua lag luam European, S355JR steel feem ntau muaj nyob rau hauv cov khoom lag luam txaus los ntawm cov neeg muag khoom hauv zos.
Yog tias koj xav tau cov ntsiab lus ntxiv txog Q355B steel daim hlau, thov tsis txhob yig tiv tauj peb.
Raws li cov chaw tsim khoom lag luam ntawm Q355B steel daim hlau hauv Suav teb, GNEE boasts 20 xyoo ntawm kev lag luam dav dav. Peb cov warehouses tuav cov khoom muag sawv ntsug ntawm ntau tshaj 50,000 tons xyoo-ib puag ncig, kom ntseeg tau tias cov xaj tuaj yeem xa tuaj hauv tsawg li xya hnub. Hais txog kev lees paub zoo, peb yog ob tus neeg muab ntawv pov thawj - tuav API thiab ISO daim ntawv pov thawj - thiab peb txais tos kev tshuaj xyuas los ntawm thib peb - cov koom haum xws li SGS, BV, thiab Lloyd's.
Los ntawm kev xaiv peb Q355B steel phaj cov khoom, koj yuav tau txais txiaj ntsig los ntawm peb cov neeg siv khoom dav dav, -cov kev pabcuam txhawb nqa, nrog rau peb cov nqi ntau dua - ntxiv cov peev txheej ua haujlwm. Peb yuav zoo siab los muab tag nrho - spectrum kev txhawb nqa thiab kev pab rau koj qhov project.
Hu rau tam sim no kom tau txais Q355B steel phaj
| Hom | Q355B |
| Txuj | AISI, ASTM, BS, GB, DIN, JIS, thiab lwm yam |
| Daim ntawv pov thawj | ISO, SGS, CE |
| Ntev |
Kev tsim khoom raws li cov neeg siv khoom xav tau |
| Thickness | 8-160 hli |
| Dav | 2000-2500MM |
| Nto | Coated |
| Cov txheej txheem | Kub dov |
| Pob | Muaj nyob rau ntawm kev thov lossis Standard Export Packing |
| Daim ntawv thov | Siv dav hauv Kev Tsim Kho Vaj Tsev, Choj, Architecture, Tsheb Cheebtsam, hipping, Lub thawv siab siab, Boiler, Loj Structure steel thiab lwm yam. |
Dab tsi yog ASTM sib npaug ntawm Q355B steel?
Cov khoom sib npaug ASTM rau Q355B steel yog ASTM A572 Qib 50. ASTM A572 Qib 50 yog cov qauv hlau uas muaj lub zog siab thiab cov ntsiab lus tsis tshua muaj alloy uas tau siv dav hauv cov qauv siv.
Suav steel qib Q355B yog dab tsi?
Q355B steel phaj yog qis- alloy siab- lub zog steel phaj. Q355B steel phaj muaj kev ua haujlwm zoo heev, kev ua haujlwm tsis tshua muaj kub, thiab zoo heev plasticity thiab weldability. Q355B steel yog siv los ua cov thawv nruab nrab thiab qis qis, roj tank, tsheb, crane, mining machinery, chaw nres tsheb fais fab, choj, thiab lwm yam.
Qhov kev ntsuam xyuas cuam tshuam rau Q355B yog dab tsi?
Q355B square steel yeeb nkab muaj kev cuam tshuam zoo heev. Ntawm chav tsev kub ntawm 20 degree, nws qhov cuam tshuam absorbed zog tsis tsawg tshaj li 34J. Qhov txiaj ntsig no qhia txog cov khoom muaj peev xwm nqus tau lub zog thaum raug cuam tshuam rau kev thauj khoom thiab yog qhov ntsuas tseem ceeb rau kev ntsuas nws qhov kev tiv thaiv kom tawg tawg.