S890Q yog qib European qib siab- tawm los- lub zog cov qauv hlau tau teev tseg raws li EN 10025-6 tus qauv. Nws yog quenched (Q) thiab tempered (T) steel tsim rau kev siv siab load qhov twg qhov hnyav txo thiab siab zog yog qhov tseem ceeb.
1. Cov ntsiab lus tseem ceeb
Khoom siv: 1.8940.
Yield zog:Yam tsawg kawg nkaus 890 MPa (rau nominal thicknesses txog 50mm).
Tensile zog:Feem ntau yog nyob nruab nrab ntawm 940-1100 MPa.
Impact Testing:S890Q tshwj xeeb yuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm lub zog ntawm qhov kub tsis qis dua -20 degree. (Ceeb Toom: Ntau yam xws li S890QL thiab S890QL1 raug kuaj ntawm -40℃thiab -60 degree, ntsig txog).
2. Kev siv ntau
Vim nws lub zog siab -rau- qhov hnyav piv, S890Q yog siv rau hauv kev nyab xeeb- tseem ceeb thiab hnyav- lub luag haujlwm kev lag luam:
Lifting & Earthmoving:Booms rau mobile cranes, dumper lub cev, thiab chassis rau kev tsheb loj.
Structure Engineering:Choj Cheebtsam, cov qauv hauv ntug dej hiav txwv, thiab kev txhawb nqa cov txheej txheem.
Lub Zog & Siab Nkoj:Penstocks, kauv rooj rau cov nroj tsuag fais fab, thiab ruaj khov los yog thauj cov tso tsheb hlau luam.
S890Q yog qhov siab heev -lub zog quenched thiab tempered structural steel txhais los ntawm European tus qauv EN 10025-6. Nws cov khoom tau ua kom zoo rau kev thauj khoom hnyav heev- cov ntawv thov cov kabmob uas qhov siab tshaj plaws lub zog- rau qhov hnyav piv yog qhov tseem ceeb. Nov yog nws cov yam ntxwv tseem ceeb:
1. Mechanical Properties
Yam tsawg kawg nkaus Yield Strength (ReHReH): 890 MPa - nws lub ntsiab lus txhais, muab cov peev xwm tshwj xeeb.
Tensile Strength (RmRm): Feem ntau 940-1100 MPa.
Elongation ntawm So: Yam tsawg kawg 10-12% (nyob ntawm qhov tuab), qhia txog kev txwv tab sis txaus ductility.
Impact Toughness: Guaranteed Charpy V-notch values at specs low temperatures (piv txwv li, Ntau tshaj los yog sib npaug rau 27 J ntawm -40℃rau cov qib qis xws li S890QL). Qhov no ua kom muaj kev tiv thaiv rau cov pob txha tawg hauv qhov chaw txias.
Hardness: Feem ntau 280–360 HBW, ua rau nws hnav heev -resistant tab sis nyuaj rau tshuab.
2. Tshuaj muaj pes tsawg leeg
Cov ntsiab lus carbon tsawg (feem ntau Tsawg dua lossis sib npaug li 0.20%) ua ke nrog micro- alloying ntsiab xws li Niobium (Nb), Vanadium (V), Titanium (Ti), thiab Boron (B).
Ntxiv Nickel (Ni), Chromium (Cr), thiab Molybdenum (Mo) los txhim kho hardenability, toughness, thiab lub zog.
Kev tswj nruj ntawm Sulfur (S) thiab Phosphorus (P) kom ntseeg tau tias muaj kev sib txhuam thiab tawg tsis kam.
3. Cov yam ntxwv ntawm cov khoom tseem ceeb
Siab zog-rau-Qhov hnyav piv: Ua kom sib zog, sib zog ua kom ntau dua yam tsis muaj peev xwm thauj khoom.
Zoo Tsawg-Temperature Toughness: Thaum xaj raws li sub- qib xws li S890QL (rau -40 degree) lossis S890QL1 (rau -60℃).
Weldable nrog cov txheej txheem nruj: Yuav tsum tau tshwj xeeb qis - hydrogen consumables, preheating (feem ntau 150-200 degree), thiab tswj cov cua sov input kom tsis txhob hydrogen cracking thiab HAZ softening.
Tsis zoo Machinability: Siab hardness thiab lub zog xav tau cov cuab yeej muaj zog, qeeb nrawm, thiab ua kom txias txaus kom tsis txhob hnav cov cuab yeej ntau dhau.
4. Cov kev txwv
Lower Ductility & Fracture Toughness: Muab piv rau qis dua - lub zog steels (piv txwv li, S690Q), nws yog nkig thiab rhiab heev rau kev ntxhov siab ntau.
Tsis Corrosion-Resistant: Yuav tsum muaj cov txheej txheem tiv thaiv (galvanizing, pleev xim) rau sab nraum zoov lossis corrosive ib puag ncig.
Tus nqi siab: Vim muaj kev sib xyaw ua ke thiab kev kho cua sov zoo.
Yam Sub{0}}Qib & Daim Ntawv Thov
S890Q / S890QL / S890QL1: Siv nyob rau hauv super- hnyav mobile cranes, advanced mining laum rigs, siab - tsheb tub rog kev ua tau zoo, offshore mooring systems, thiab tshwj xeeb thauj khoom uas txo qhov hnyav yog qhov tseem ceeb.
Hauv cov ntsiab lus, S890Q ua lag luam tawm yooj yim ntawm fabrication thiab ductility rau qhov kawg ntawm lub zog, ua rau nws yog ib tug tshwj xeeb cov khoom rau engineered heev, hnyav-cov qauv tseem ceeb ua nyob rau hauv kev tswj tej yam kev mob.
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.
