qw 355mb, qw 355mc, thiabqw 355MDyog High-Strength Low-Alloy (HSLA) structural steels teev nyob rau hauv Suav teb Standard GB/T 1591-2018. Tag nrho peb qib muaj qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa; Txawm li cas los xij, lawv qhov kev sib txawv tseem ceeb yog nyob rau hauv lawv qhov kev cuam tshuam toughness thiab qis - qhov kub thiab txias ua haujlwm-qhov sib txawv ntawm cov ntawv sau B, C, thiab D hauv lawv cov npe.
Raws li cov khoom lag luam zoo tshaj plaws ntawm -cov hlau zoo, Gnee yuav muab koj cov ncauj lus kom ntxaws ntawm qhov sib txawv ntawm peb cov ntaub ntawv no, txhawm rau pab cov neeg yuav khoom thoob ntiaj teb kom yooj yim xaiv cov khoom tsim nyog tshaj plaws rau lawv cov kev xav tau.
Taw Qhia Rau Q355MB vs. Q355MC vs. Q355MD
Q355MB, Q355MC, thiab Q355MD yog cov tib series (raws li GB/T 1591-2018 tus qauv) ntawm qis- alloy high-strength steel qauv. Tag nrho peb yog muab los sivTMCP(Thermo-Mechanical Control Process) thev naus laus zis, cov txheej txheem uas ua rau muaj txiaj ntsig zoo tshaj plaws los ua kom muaj txiaj ntsig ntxiv dag zog. Cov ntsiab lus tshwj xeeb tau piav qhia hauv qab no:
qw 355mbyog Suav qis- alloy, siab - lub zog steel qauv txhais los ntawm GB/T 1591-2018 tus qauv. Nrog rau qhov tsawg kawg nkaus lub zog ntawm 355 MPa, qib steel no muaj npe nrov rau nws cov weldability zoo, toughness, thiab durability, thiab yog dav siv nyob rau hauv engineering machinery, choj kev tsim kho, thiab siab nkoj tsim.
qw 355mcyog Suav -tsim siab- lub zog qis- alloy (HSLA) cov qauv hlau, txhais los ntawm GB/T 1591-2018 tus qauv, thiab tsim tshwj xeeb los xa cov khoom txias txias, khoov, thiab vuam kev ua tau zoo. Cov qib steel no muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab tau siv dav hauv kev tsim cov khoom siv tsheb thiab tsheb.
qw 355MDyog lub siab -lub zog qis- alloy (HSLA) cov qauv steel phaj tsim tshwj xeeb rau kev siv hnyav-cov haujlwm uas yuav tsum tau ua kom qis qis- kub toughness thiab weldability. Txhais los ntawm Suav tus qauv GB/T 1591-2018, qib steel no muaj qhov ua tau zoo ntawm 355 MPa thiab nquag siv hauv kev tsim cov choj, nkoj, thiab cov phiaj xwm loj loj.
Q355MB vs. Q355MC vs. Q355MD: Kev sib xyaw tshuaj lom neeg
Qhov tseem ceeb sib txawv ntawm cov tshuaj muaj pes tsawg leeg yog nyob rau hauv qhov tseeb hais tias, raws li qib nce qib ntawm qib B mus rau qib D, kev tswj cov pa roj carbon (C), sulfur (S), thiab phosphorus (P) yuav nruj dua, aiming los txhim kho qis -kub toughness.
| Element | Q355MB (Tswj) | Q355MC (Tswj) | Q355MD (Tswj) |
|---|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.18% | Tsawg dua lossis sib npaug li 0.16% | Tsawg dua lossis sib npaug li 0.16% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.50% | Tsawg dua lossis sib npaug li 0.50% | Tsawg dua lossis sib npaug li 0.50% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.60% | Tsawg dua lossis sib npaug li 1.60% | Tsawg dua lossis sib npaug li 1.60% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.025% | Tsawg dua lossis sib npaug li 0.025% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.025% | Tsawg dua lossis sib npaug li 0.020% | Tsawg dua lossis sib npaug li 0.020% |
| Microalloys (Nb + V + Ti) | Tsawg dua lossis sib npaug li 0.15% | Tsawg dua lossis sib npaug li 0.15% | Tsawg dua lossis sib npaug li 0.15% |
Q355MB vs. Q355MC vs. Q355MD: Mechanical Properties Compration
Raws li GB/T 1591-2018 tus qauv, cov khoom siv kho tshuab ntawm Q355MB, Q355MC, thiab Q355MD-tshwj xeeb ntawm lub zog thiab ductility-yuav luag zoo ib yam. Lawv qhov txawv txav yog nyob rau hauv lawv qhov cuam tshuam toughness ntawm qhov kub thiab txias.
| Khoom | Q355MB (B Qib) | Q355MC (C qib) | Q355MD (D qib) |
| Yield zog | Ntau dua lossis sib npaug li 355 MPa | Ntau dua lossis sib npaug li 355 MPa | Ntau dua lossis sib npaug li 355 MPa |
| Tensile zog | 470 - 630 MPa | 470 - 630 MPa | 470 - 630 MPa |
| Impact Temp | +20 degree | 0 degree | -20 degree |
| Impact Zog | Ntau dua lossis sib npaug rau 34J (lossis Ntau dua lossis sib npaug rau 27J) | Ntau dua lossis sib npaug rau 34J (lossis Ntau dua lossis sib npaug rau 27J) | Ntau dua lossis sib npaug rau 34J (lossis Ntau dua lossis sib npaug rau 27J) |
Vim li cas TMCP Cov Teeb Meem rau Q355MB vs. Q355MC vs. Q355MD?
Thermo-Mechanical Control Process (TMCP) yog ib qho tseem ceeb rau qib steel Q355MB, Q355MC, thiab Q355MD, vim nws ua rau cov hlau no ua kom muaj zog siab (nrog rau lub zog tawm ntawm 355 MPa) thiab tshwj xeeb qis-kub toughness yam tsis tau tso siab rau cov ntsiab lus siab alloy lawv ncaj qha{6}.
Txawm hais tias Q355B / C / D series steels tuaj yeem ua tau raws li - dov los yog normalized mob, steel qib bearing "M" kev xaiv yog nruj me ntsis yuav tsum tau muab nyob rau hauv TMCP tus me nyuam tus mob; Cov txheej txheem no optimizes steel lub microstructure kom tau raws li qhov xav tau ntawm ntau yam kev thov nruj heev scenarios.
Cov laj thawj tseem ceeb vim li cas TMCP yog qhov tseem ceeb:
Ua kom qis qis-Tsub Toughness (Q355MC/MD)
Txo Carbon sib npaug thiab txhim kho Weldability
Txo kev ntxhov siab sab hauv
Kev sib raug zoo ntawm Mechanical Properties
Q355MB vs. Q355MC vs. Q355MD: Cov ntawv thov tseem ceeb
Tag nrho peb ntawm cov qib steel no yog siv rau hauv kev tsim vaj tsev hnyav; Txawm li cas los xij, lawv qhov "MB," "MC," thiab "MD" kev faib tawm txiav txim siab lawv qhov tshwj xeeb tsim nyog rau qhov chaw txias txias los yog kom tau raws li cov kev cai nruj dua.
Q355MB (General-Lub Hom Phiaj Siab-Steel Strength Structural Steel)
Kev tsim kho & Infrastructure: Cov qauv tsim rau cov tsev siab -nce, loj- lub ru tsev, thiab cov chaw ua si.
Choj Engineering: Main girders, crossbeams, thiab kev txhawb nqa cov khoom siv rau cov kav hlau.
Machinery & Tsheb: Chassis thav duab rau hnyav engineering machinery, trailer, thiab tsheb ciav hlau.
Q355MC (High-Weldability & Prefabricated Steel Qauv)
Complex Welded Structures: Cov khoom siv rau cov tshuab hnyav uas xav tau kev vuam dav.
Industrial Plant Structures: Heavy-cov kab ke ua haujlwm thiab kab teeb hauv lub Hoobkas qhov chaw xav tau siab tau muab tso rau ntawm cov qauv kev ncaj ncees thiab txias- ua haujlwm.
Lub Hwj Chim Siab (Tsawg-Siab): Cov khoom siv qhov chaw vuam zoo thiab qhov hnyav yog qhov tseem ceeb.
Q355MD (Txias-Kev nyab xeeb & siab- cuam tshuam-Resistance Structural Steel)
Offshore Cua Structures: Tsim nyog ua lwm txoj hauv kev rau cov qib European S355M / ML rau kev tsim cov hauv paus thiab cov qauv tsho rau sab nrauv cua ua liaj ua teb.
Polar/Northern Region Kev Tsim Kho: Cov khoom siv rau kev tsim kho tej yaam num nyob rau hauv txias - cheeb tsam huab cua.
Heavy Mining Equipment: Cov khoom siv tshwj xeeb tsim los rau kev ua haujlwm nyob rau hauv qis - qhov kub thiab txias ua haujlwm.
Q355MB vs. Q355MC vs. Q355MD: Daim Ntawv Qhia Txiav Txim
1. Kev khiav hauj lwm ib puag ncig kub
Kev nyab xeeb huab cua / Sab hauv ib puag ncig: Xaiv Q355MB.
Kev nyab xeeb txias / Sab nraum zoov lub caij ntuj no ib puag ncig: Xaiv Q355MC.
Polar Ib puag ncig / Sub-zero Industrial Ib puag ncig: Xaiv Q355MD.
2. Component Criticality (Impact Resistance)
Siab -Ib Cheeb Tsam: Rau cov khoom siv hauv cranes, txuas hniav, lossis cov tshuab mining uas yuav tsum tau ua kom muaj kev cuam tshuam loj, Q355MD yuav tsum raug xaiv; nws superior toughness pab tiv thaiv brittle puas.
Static Structures: Rau cov tsev lossis cov qauv kev ua haujlwm nrog cov kev xav tau qis dua ntawm kev cuam tshuam, Q355MB lossis Q355MC tuaj yeem xaiv.
3. Weldability
Ua tsaug rau Thermo-Mechanical Control Process (TMCP), tag nrho cov M-series steels muaj cov weldability zoo heev, feem ntau nthuav dav vuam kev ua tau zoo dua piv rau cov tsis yog-M qib steels. Txawm li cas los xij, rau cov qauv tseem ceeb uas yuav tsum tau vuam thiab yuav ua haujlwm nyob rau hauv qis - qhov kub thiab txias, Q355MD tseem yog thawj qhov kev xaiv.
4. Nqi thiab Muaj
Feem ntau hais lus, Q355MB yog tus nqi ntau tshaj - kev xaiv zoo.
Raws li Q355MD yuav tsum tau ua kom tau raws li cov kev ntsuas nruj dua thiab ua tiav, nws cov nqi kuj tseem siab dua.
Vim li cas Partener Nrog GNEE?
✅High -Zoo Manufacturing thiab Durability
GNEE cov hlau phaj muaj cov yam ntxwv siab - lub zog, ua rau lawv tiv taus siab thiab ntau yam kev ntxhov siab. GNEE nruj me ntsis ua raws li cov qauv kev tswj hwm nruj kom ntseeg tau qhov kev ntseeg tau ntawm nws cov khoom.
✅ Kev Pabcuam Kev Cai
GNEE muaj cov kev pab cuam txiav, siv peb loj - nplai CNC nplaim taws thiab ntshav txiav tshuab muaj peev xwm ua cov hlau ua ntau hom kev cai. Tsis tas li ntawd, GNEE tuaj yeem muab kev cai - steel loj - kho kom haum rau cov thicknesses tshwj xeeb thiab dav - kom ua tau raws li qhov tshwj xeeb ntawm cov haujlwm ib leeg.
✅ Cov kws tshaj lij thiab cov ntawv pov thawj
Raws li cov chaw tsim khoom muaj npe nrov, GNEE muab cov kws tshaj lij kev cob qhia thiab muaj ntau tshaj 15 xyoo ntawm kev paub hauv steel ntau lawm. GNEE zoo siab txais tos thib peb -kev tshuaj ntsuam xyuas los txheeb xyuas cov tshuaj muaj pes tsawg leeg thiab cov khoom siv tshuab ntawm nws cov khoom hlau.
✅Txhim khu kev xa khoom thiab kev pabcuam
GNEE tuav cov khoom lag luam kom paub meej kom xa sai thiab txo cov neeg siv sijhawm tos. Tsis tas li ntawd, GNEE cov khoom raug xa tawm mus rau ntau dua 60 lub teb chaws thoob ntiaj teb, thiab lub tuam txhab muab cov kev pabcuam ntim khoom xa tawm los lav qhov kev nyab xeeb ntawm cov khoom.
Hu rau tam sim no kom tau txais Q355MB Siab-Lub zog qis-Alloy Structural Steel
|
Khoom npe |
Tsawg- alloy siab - lub zog steel |
|
Qauv nab npawb |
Q355MB/MC/MD/ME/MF |
|
Dav |
45mm-2200mm, Raws li koj qhov kev thov |
|
Kev kho saum npoo |
Liab qab, Dub, Oiled, Txhaj Tshuaj Txhaum Cai, Coated, Galvanized, lossis raws li koj qhov kev thov |
|
Khoom siv |
Carbon Steel |
|
Txuj |
ASTM, GB, EN, BS, JIS, thiab lwm yam |
|
Kev Pabcuam |
Vuam, Punching, txiav, dabtsi yog khoov, decoiling |
|
Ntev |
1-12m raws li kev cai |
|
Thickness |
Kub Rolled Thickness: 2.75mm-100mmCold Rolled Thickness: 0.2mm-3mm |
|
Ntim |
Bundled nrog muaj zog steel strips los yog nrog waterproof packing cov ntaub ntawv |
|
Qauv |
Txais |
|
OEM & ODM kev cai |
Txais |
Cov ntawv "M" thiab "B/C/D" sawv cev rau Q355MD?
Q stands rau lub zog tawm los (los ntawm Suav lo lus Qu Fu).
355 qhia qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa.
M stands rau Thermomechanically Rolled (TMCP), uas yog tus xa khoom.
B, C, thiab D yog xa mus rau cov qhab nia zoo raws li qhov cuam tshuam ntawm qhov kub thiab txias (+20℃, 0℃, thiab -20℃feem).
Hauv qhov chaw twg kuv yuav tsum xaiv Q355MD tsis yog Q355MB?
Koj yuav tsum xaiv Q355MD yog tias tus qauv yuav siv rau hauv cov huab cua txias (qhov twg qhov kub thiab txias poob qis) lossis yog tias nws raug rau cov khoom hnyav thiab kev co. Qhov -20℃cuam tshuam qhov yuav tsum tau muaj ntawm MD muab cov npoo kev nyab xeeb tiv thaiv cov pob txha tawg.
Q355MD puas tuaj yeem hloov Q355MC lossis Q355MB?
Yog lawm, Q355MD tuaj yeem hloov Q355MC thiab Q355MB vim tias nws ua tau raws thiab dhau qhov yuav tsum tau ua kom nruj ntawm lwm ob. Nws yog qhov hloov pauv "siab dua- rau- qis dua". Txawm li cas los xij, tej zaum nws yuav kim dua me ntsis vim muaj kev tswj hwm nruj dua.
Dab tsi yog cov qhab nia sib npaug thoob ntiaj teb rau Q355MD?
Raws li European tus qauv EN 10025-4, qhov sib npaug ze tshaj plaws yog S355M (rau MC) thiab S355ML (rau MD). Hauv Teb Chaws Asmeskas tus qauv ASTM, nws zoo ib yam li A572 Qib 50 lossis A709 Qib 50, txawm hais tias TMCP cov txheej txheem ua tiav yog qhov tshwj xeeb hauv Suav thiab European cov qauv.