S690Qyog lub siab -lub zog quenched thiab tempered structural steel nrog qhov tsawg kawg nkaus tawm lub zog ntawm 690 MPa, muab kev sib npaug ntawm lub zog, toughness, thiab weldability rau hnyav- cov ntaub ntawv siv xws li cranes, cov khoom siv mining, thiab cov qauv sab nrauv.
S890Qyog ib qho ultra-siab- lub zog quenched thiab tempered structural steel nrog qhov tsawg kawg nkaus tawm lub zog ntawm 890 MPa, tsim rau hnyav hnyav- cov ntaub ntawv tseem ceeb xws li cov crane booms siab heev, tsheb tub rog, thiab siab - kev ua tau zoo machinery, txawm hais tias nws yuav tsum tau nruj dua vim vuam thiab fabrication kom qis dua.
Kev sib piv ntawm S890Q thiab S690Q cov chaw ntawm kev lag luam -tawm ntawm qhov kawg ntawm lub zog thiab tag nrho cov khoom tsim tau, toughness, thiab tus nqi. Ob leeg yog quenched thiab tempered structural steels raws li EN 10025-6, tab sis lawv ua hauj lwm sib txawv ntawm cov ntaub ntawv muaj zog.
Nov yog qhov sib piv ncaj qha:
| Yam | S690Q | S890Q |
|---|---|---|
| Yield zog | 690 MPa ua(yam tsawg kawg) | 890 MPa ua(tsawg kawg) - ~ 29% muaj zog |
| Tensile zog | ~ 770–940 MPa | ~ 940-1100 MPa |
| Ductility (Elongation) | Siab (~ 14-16%) | Tsawg (~ 10-12%) - nkig ntau dua |
| Impact Toughness | Feem ntau zoo dua ntawm qhov kub qis rau cov qib sib npaug (piv txwv li, QL) | Tsawg toughness ntawm tib qhov kub; rhiab heev rau notches thiab tawg |
| Weldability | Cov txheej txheem nyuaj tab sis tsim tau zoo; preheat ~ 100-150 degree | nyuaj dua; yuav tsum tau nruj dua preheat (feem ntau 150-200 degree), nruj tswj ntawm cov cua sov input, siab dua ntawm HAZ softening / cracking |
| Machineability | Yooj yim tab sis tswj tau nrog cov cuab yeej tsim nyog | nyuaj heev; Cov cuab yeej siv siab dua, yuav tsum muaj kev teeb tsa thiab ua kom txias |
| Qhov hnyav-Saving Potential | Qhov tseem ceeb vs. steel me me (~ 50% sib dua rau tib lub load) | Heev - tso cai ntxiv ~ 20-25% qhov hnyav txo vs. S690Q |
| Nqi | Siab, tab sis kuj muaj ntau dua | High-premium khoom nrog ntau complex alloying / ua |
| Cov ntawv thov tseem ceeb | cranes, cov khoom siv mining, cov qauv hnyav hauv cov huab cua txias | Ultra-high-kev ua tau zoo crane booms, advanced mining laum rigs, tub rog tsheb ntas, tshwj xeeb offshore Cheebtsam |
Key Engineering Trade-offs:
Lub zog vs. Toughness:
S890Q muab lub zog ntau dua tab sis nrog txo qhov toughness thiab ductility. Qhov no ua rau S890Q muaj kev cuam tshuam ntau dua rau cov pob txha tawg yog tias tsis tsim thiab tsim kom zoo.
Fabrication Complexity:
Vuam thiab machining S890Q yog xav tau ntau dua S690Q. Nws yuav tsum tau nruj dua preheat, txo cov cua sov input, thiab feem ntau tshaj tawm -weld kev kho cua sov kom tsis txhob tawg los yog softening nyob rau hauv lub tshav kub-cuam tshuam cheeb tsam.
Design Philosophy:
S690Qfeem ntau yog siv los ua tus neeg ua haujlwm muaj zog muaj zog rau ntau yam kev siv hnyav.
S890Qyog cov khoom siv niche xaiv tsuas yog qhov kev txo qhov hnyav yog qhov tseem ceeb (xws li, mobile crane booms qhov twg ntxiv qhov ntev / muaj peev xwm tau txais) thiab qhov kev sib tw nqi thiab kev tsim khoom tuaj yeem tsim nyog.
Kev txiav txim siab nyiaj txiag:
S890Q tseem kim dua ob qho tib si hauv cov khoom siv thiab kev tsim khoom. Nws feem ntau yog siv rau cov khoom tseem ceeb es tsis yog tag nrho cov qauv.
Thaum xaiv qhov twg:
Xaiv S690Qrau feem ntau cov ntawv siv zog uas xav tau zoo toughness, weldability, thiab sib npaug ntawm tus nqi thiab kev ua haujlwm.
Xaiv S890Qthaum lub zog-rau-qhov hnyav tshaj qhov sib piv yog tus tsav tsim dhau los, thiab pab pawg neeg tsim khoom tuaj yeem tswj hwm nws cov kev tsim cov nyom thiab kev nkag siab ntau dua rau kev ntxhov siab.
Hauv luv luv, S890Q thawb lub hnab ntawv kev ua tau zoo dua li S690Q tab sis ntawm tus nqi ntawm cov khoom siv tawv dua, txo cov tawv tawv, thiab tus nqi siab dua.
S890Q steel yog dab tsi?
S890Q yog qhov siab heev - lub zog quenched thiab tempered structural steel nrog qhov tsawg kawg nkaus yield zog ntawm 890 MPa, tsim rau huab load- cov ntaub ntawv bearing.
Dab tsi yog cov khoom ntawm S890Q steel?
Nws muaj lub zog tshwj xeeb, zoo toughness ntawm qhov kub thiab txias, thiab weldability nrog cov txheej txheem tsim nyog, txawm hais tias nws yog nkig ntau dua li qis dua - qib steels.
S890Q steel siv nyob qhov twg?
S890Q yog siv rau hauv hnyav- lub luag haujlwm crane booms, cov cuab yeej mining siab heev, siab - kev ua tub rog tsheb, thiab cov khoom siv tshwj xeeb uas muaj zog tshaj plaws - rau - qhov hnyav piv yog qhov tseem ceeb.
S890Q piv rau S690Q li cas?
S890Q muaj lub zog tawm los ntau dua (890 MPa vs . 690 MPa) tab sis qis toughness thiab weldability, ua rau nws tsim nyog rau kev xav tau ntau dua, lub teeb yuag.
Cov txheej txheem vuam dab tsi yuav tsum tau ua rau S890Q?
Vuam S890Q yuav tsum nruj preheating (feem ntau 150-200 degree), qis-hydrogen electrodes, tswj cov cua sov input, thiab tom qab-weld kev nyuaj siab nyem kom tsis txhob tawg.
Puas yog S890Q steel corrosion resistant?
Tsis yog, S890Q tsis yog corrosion- tiv taus thiab yuav tsum muaj cov txheej txheem tiv thaiv xws li pleev xim lossis galvanizing siv rau hauv qhov chaw raug.
Cov qauv dab tsi npog S890Q steel?
Nws yog feem ntau tau teev tseg raws li European tus qauv EN 10025-6 rau quenched thiab tempered high-strength structural steels.
S890Q puas tuaj yeem ua tau yooj yim?
Machining S890Q yog qhov nyuaj vim nws qhov nyuaj thiab lub zog; nws yuav tsum tau siv cov cuab yeej muaj zog, qeeb ceev, thiab ua kom txias txaus.
Tus nqi ntawm S890Q steel phaj yog dab tsi?
S890Q yog kim kim dua li qis dua - qib zog, nrog rau cov nqi sib txawv raws li tuab, ntau, thiab cov ntawv pov thawj yuav tsum tau ua.
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.
