S690Qyog lub siab -lub zog, quenched thiab tempered structural steel muab ib tug zoo tshuav nyiaj li cas ntawm siab yield thiab tensile lub zog, toughness, thiab weldability. Nws yog dav siv nyob rau hauv cov ntaub ntawv hnyav xws li nqa cov khoom siv, cov tsev siab siab, offshore platforms, thiab mining machinery, qhov kev ua tau zoo ntawm cov khoom hnyav yog qhov tseem ceeb. Nws cov khoom yog ua tiav los ntawm kev tswj quenching thiab tempering, uas ua kom cov microstructure thiab ua kom cov yam ntxwv zoo sib xws thoob plaws cov khoom tuab.
Cov tshuaj muaj pes tsawg leeg ntawm S690Q steel raws li EN 10025-6,%
|
С |
Si |
Mn |
P |
S |
N |
B |
Cr |
Cu |
Mo |
Nb |
Ni |
Ti |
V |
Zr |
|
0,20 |
0,80 |
1,70 |
0,025 |
0,015 |
0,015 |
0,005 |
1,50 |
0,50 |
0,70 |
0,06 |
2,0 |
0,05 |
0,12 |
0,15 |
Mechanical zog ntawm S690Q steel
|
Nominal ntsuas, mm |
Yam tsawg kawg nkaus tawm lub zog, ReH (MPa) |
Qhov kawg tensile zog, Rm (MPa) |
Qhov tsawg kawg nkaus elongation ratio σ,% |
Brinell hardness tooj, HB (MPa) |
|
>3 Tsawg dua lossis sib npaug li 50 |
690 |
770-940 |
14 |
228-278 |
|
>50 Tsawg dua los yog sib npaug rau 100 |
650 |
760-930 |
14 |
225-276 |
|
>100 Tsawg dua los yog sib npaug rau 150 |
630 |
710-900 |
14 |
210-266 |
Analogues rau S690Q steel
|
Lub teb chaws Yelemees (DIN) |
TSI 690V |
|
Fabkis (AFNOR) |
E690T |
Cov ntawv thov tseem ceeb
Lifting & Heavy Machinery:
Siv dav rau crane booms, jibs, thiab nqa caj npab. Nws tseem yog ib qho tseem ceeb heev rau cov khoom hnyav - cov khoom siv mining xws li cov tsheb thauj khoom thiab cov excavators uas ntsib cov khoom hnyav hnyav.
Civil Infrastructure:
Ua haujlwm nyob rau hauv siab -cov tsev nce siab thiab ntev- txuas txuas txuas (piv txwv li, Hong Kong's Cross Bay Link) txhawm rau txhawb nqa hnyav axial loads thiab lateral force los ntawm cua lossis seismic.
Kev thauj mus los:
Siv nyob rau hauv trailer ncej thiab tshwj xeeb - lub hom phiaj tsheb kom maximize payload thaum txo lub tsheb tuag hnyav.
Zog & Offshore:
Pom muaj nyob rau hauv ntug dej hiav txwv drilling platforms, cua turbine txhawb cov qauv, thiab cov hlab ntsha siab vim nws cov load siab -cov kabmob muaj peev xwm thiab kev ua haujlwm zoo nyob rau hauv qhov hnyav marine ib puag ncig.
Core Zoo
Qhov hnyav txo:
Nws lub zog tawm los (690 MPa) yog ze li ob npaug ntawm cov qauv S355 steel, tso cai rau 20-40% qhov hnyav txuag los ntawm cov ntu nyias.
Enhanced Payload:
Hauv kev siv xov tooj ntawm tes, qhov hnyav ntawm cov qauv siv ncaj qha txhais mus rau 10-20% nce hauv cov peev txheej thauj khoom thiab kev siv roj zoo dua.
Nqi Efficiency:
Thaum tus nqi pib cov khoom siv ntau dua, tag nrho cov nqi ntawm cov phiaj xwm feem ntau txo qis los ntawm 10-25% vim yog txo cov tonnage steel, me me hauv paus yuav tsum, thiab txo nqi tsheb thauj mus los / txhim kho.
Ductility thiab Safety:
Txawm hais tias nws hardness, nws tswj qhov tsawg kawg nkaus elongation ntawm ~ 14%, muab lub zog nqus nqus thaum lub sij hawm seismic xwm txheej los tiv thaiv nkig tsis ua hauj lwm.
Sustainability:
Leaner designs ua rau txo qis cov khoom siv raw thiab txo cov pa roj carbon hneev taw, ua raws li 2026 eco- cov qauv kev tsim kho tus phooj ywg.
Tiv tauj peb ntawm beam@gneesteelgroup.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.
Cov txheej txheem vuam zoo li cas rau S690Q?
Txoj kev vuam tsim nyog rau S690Q suav nrog MMA, MIG / MAG, TIG, thiab submerged arc vuam. Kev sib piv qis - hydrogen electrodes raug pom zoo.
Puas yog S690Q xav tau tom qab-weld heat treatment (PWHT)?
PWHT tsis yog ib txwm yuav tsum tau tab sis raug qhia rau cov ntu tuab lossis siab - kev ntxhov siab pob qij txha txhawm rau txo cov kev ntxhov siab uas seem thiab txhim kho cov tawv nqaij.
Lub hardness ntawm S690Q yog dab tsi?
Qhov raug Brinell hardness ntawm S690Q yog 220-260 HBW. Hardness yuav txawv me ntsis nrog cov thickness thiab kev kho cua sov tsis.
S690Q puas tuaj yeem ua tshuab?
Yog lawm, S690Q tuaj yeem ua tshuab, tab sis nws xav tau cov cuab yeej ntse thiab cov kev txiav tsim nyog vim nws lub zog siab. Coolant yog qhov tseem ceeb.
Cov ntsiab lus carbon ntawm S690Q yog dab tsi?
Cov ntsiab lus carbon ntawm S690Q feem ntau yog 0.18-0.22%. Cov ntsiab lus tsis tshua muaj cov pa roj carbon monoxide ua kom muaj kev ruaj ntseg thaum tuav lub zog siab.
Puas yog S690Q sib nqus?
Yog lawm, S690Q yog hlau nplaum. Nws ferritic microstructure (tempered martensite) ua rau nws teb rau magnetic teb.
Dab tsi yog qhov cuam tshuam lub zog xav tau rau S690Q?
S690Q yuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm 30 J ntawm -20℃(Charpy V-notch test), kom ntseeg tau tias muaj zog nyob rau hauv dynamic loads.
S690Q puas tuaj yeem siv rau hauv cov qauv sab nrauv?
Yog lawm, S690Q yog tsim rau cov qauv offshore xws li platforms thiab tsho, raws li nws tiv taus siab loads thiab hnyav marine ib puag ncig nrog kev tiv thaiv kom raug.
Qhov txawv ntawm S690Q thiab S460Q yog dab tsi?
S690Q muaj lub zog tawm los ntau dua (690 MPa vs . 460 MPa rau S460Q) thiab siv rau kev thov ntau dua, hnyav- daim ntawv thov thauj khoom.
Yuav khaws S690Q daim hlau li cas los tiv thaiv corrosion?
Khaws S690Q daim hlau nyob rau hauv qhov chaw qhuav, zoo- qhov cua qhov chaw, kom deb ntawm cov dej noo thiab tshuaj lom neeg. Npog nrog cov ntawv tsis muaj dej kom tsis txhob xeb.