Dab tsi yog cov khoom ntawm S690Q steel?
S690Q steel yog siab -lub zog, nplua- cov qauv hlau (HSLA) uas yog quenched thiab tempered (Q) rau tshwj xeeb lub zog (tsawg kawg 690 MPa tawm los) thiab toughness, siv nyob rau hauv hnyav- daim ntaub ntawv xws li txuas hniav, cranes, thiab machinery qhov twg yuag yuag 5, EN6-10 cov qauv kev ua haujlwm siab. Nws lub npe tawg ua 'S' (Structural), '690' (min tawm lub zog hauv MPa), thiab 'Q' (Quenched & Tempered).
Cov yam ntxwv tseem ceeb
Siab zog:Yam tsawg kawg nkaus lub zog ntawm 690 MPa, nrog lub zog tensile ib txwm nyob nruab nrab ntawm 770-940 MPa, muab lub peev xwm thauj khoom zoo heev.
Toughness:Zoo cuam tshuam toughness, feem ntau lav ntawm qhov kub thiab txias mus rau -20 degree.
Cov nplej zoo:Ua tiav los ntawm kev kho cua sov, pab txhawb rau nws lub zog thiab toughness.
Weldability:Pom tau tias muaj qhov zoo weldability rau nws cov chav kawm muaj zog, txawm tias cov txheej txheem zoo li preheating feem ntau xav tau, tshwj xeeb tshaj yog rau cov phaj tuab.
Tsawg Alloy:Kev tswj cov tshuaj muaj pes tsawg leeg uas txhawb nqa nws cov kev ua haujlwm siab.
Daim ntawv thov
Cov cuab yeej siv hnyav (excavators, loaders)
Cov choj thiab cov qauv hauv ntug dej hiav txwv (drilling rigs, windmill txhawb nqa)
cranes thiab lifting khoom
Cov hlab ntsha siab
Siab - thauj khoom cov qauv hauv ntau lub tshuab
Lub npe tawg
S:Cov qauv hlau
690:Yam tsawg kawg nkaus tawm lub zog (690 MPa)
Q:Quenched thiab Tempered (kub kho mob)
Dab tsi yog cov khoom ntawm S690Q steel?
1. High Strength: Nws muaj qhov tsawg kawg nkaus yield zog ntawm 690 MPa thiab ib tug raug tensile zog ntau yam ntawm 770-940 MPa. Qhov no ua rau nws muaj zog dua li ob npaug ntawm cov qauv hlau (xws li S355).
2. Zoo Toughness: Raws li qib quenched thiab tempered (Q), nws muaj kev cuam tshuam zoo heev, tshwj xeeb tshaj yog nyob rau qhov kub thiab txias. Sub-qib xws li S690QL qhia txog qhov hnyav dua ntawm -40℃lossis -60℃.
3. Zoo Weldability: Txawm tias nws lub zog siab, nws yog tsim los rau weldable. Qhov no yuav tsum tau ceev faj cov txheej txheem (siv qis -hydrogen electrodes, preheating, thiab tswj cov cua sov input) kom khaws nws cov khoom nyob rau hauv tshav kub- thaj tsam cuam tshuam.
4. Hardness: Nws muaj ib tug siab hardness, feem ntau nyob rau hauv qhov ntau ntawm 240-300 HBW (Brinell Hardness).
5. Ductility: Nws tswj cov qib tsim nyog ntawm ductility, nrog qhov tsawg kawg nkaus elongation ntawm kev tawg ntawm ib ncig ntawm 14%, tso cai rau qee qhov deformation ua ntej tsis ua haujlwm.
6. Fatigue Resistance: Nws nthuav tawm lub zog qaug zog zoo, ua rau nws haum rau dynamic thiab thauj khoom -cov kabmob xws li cranes thiab cov khoom thauj.
Key Takeaway: S690Q yog lub siab -lub zog, qis- alloy (HSLA) steel uas ua tiav nws qhov tshwj xeeb sib npaug ntawm lub zog thiab tawv los ntawm quenching thiab tempering txheej txheem kho cua sov. Nws yog feem ntau xaiv qhov uas txo qhov hnyav thiab cov khoom tuab yog qhov tseem ceeb yam tsis muaj kev cuam tshuam cov qauv kev ncaj ncees.
Cov ntaub ntawv technical
TS EN 10025-6 S690Q quenched thiab tempered steel phaj Cov tshuaj muaj pes tsawg leeg
| Qib | C % | Si% | Mn% | P % | S % | N % | B % | Cr% |
| S690Q | 0.200 | 0.800 | 1.700 | 0.025 | 0.015 | 0.015 | 0.005 | 1.500 |
| Cu% | Mo% | Nb% | Ni% | Ti % | V % | Zr% | ||
| 0.500 | 0.700 | 0.060 | 2.000 | 0.050 | 0.120 | 0.150 |
EN10025-6 S690Q quenched thiab tempered steel phaj mechanical zog
| Qib | Thickness | Min Yield | Tensile | Elongation | Min Impact Zog | |
| S690Q | 8mm-50mm | Min 690 Mpa | 770-940 Mpa | 14% | -20 | Min 30 J |
| 51mm-100 hli | Min 650 Mpa | 760-930 Mpa | 14% | -20 | Min 30 J | |
| 101mm-150mm | Min 630 Mpa | 710-900 Mpa | 14% | -20 | Min 30 J |
S690Q steel yog dab tsi?
S690Q yog qhov siab - lub zog quenched thiab tempered structural steel qib nrog qhov tsawg kawg nkaus tawm lub zog ntawm 690 MPa, feem ntau siv rau kev thov kev tsim kho thiab nqa daim ntawv thov.
Dab tsi yog cov khoom ntawm S690Q steel?
S690Q muaj lub zog siab, zoo toughness ntawm qis kub, thiab zoo weldability vim nws quenched thiab tempered microstructure.
Qhov txawv ntawm S690QL thiab S690Q yog dab tsi?
S690QL yog sub-qib nrog qhov ntsuas qis- qhov kub thiab txias cuam tshuam, thaum S690Q yog qib pib; ob leeg sib koom tib yam tsawg kawg nkaus tawm lub zog.
S690Q steel siv nyob qhov twg?
Nws yog feem ntau siv rau hauv cov tshuab hnyav, mobile cranes, cov khoom siv mining, thiab cov khoom siv ua haujlwm siab heev uas lub zog siab - rau - qhov hnyav piv yog qhov tseem ceeb.
Yuav ua li cas weld S690Q steel?
Vuam S690Q feem ntau yuav tsum muaj tsawg -hydrogen electrodes, preheating, thiab tswj cov cua sov input kom tswj nws cov khoom siv kho tshuab thiab tiv thaiv kev tawg.
Cov tshuaj muaj pes tsawg leeg ntawm S690Q yog dab tsi?
S690Q muaj cov khoom xws li carbon, manganese, silicon, thiab micro- alloys xws li niobium, vanadium, thiab titanium, nrog cov kev txwv meej kom ntseeg tau nws cov khoom.
Puas yog S690Q steel corrosion resistant?
Tsis yog, S690Q tsis yog qhov muaj zog corrosion-resistant; nws yuav tsum tau tiv thaiv txheej los yog pleev xim rau siv nyob rau hauv corrosive ib puag ncig.
Dab tsi yog cov txheej txheem machining rau S690Q?
Machining S690Q yuav tsum muaj cov cuab yeej muaj zog, ua kom txias txaus, thiab qeeb qeeb vim nws lub zog siab thiab tawv.
Tus nqi ntawm S690Q steel phaj yog dab tsi?
Tus nqi ntawm S690Q sib txawv raws li thickness, ntau, thiab kev ua lag luam, tab sis nws yog feem ntau kim tshaj li cov qauv steel vim nws cov kev ua haujlwm siab heev.
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.
