S690Qyog kub- dov hardened structural steel uas tau dhau los tom qab tempering kho thiab ua raws li EN 10025-6, DSTU EN 10025-6 tus qauv.
Txheem: Kub- cov khoom dov ua los ntawm cov qauv hlau. TS EN 10025-6: Cov txheej txheem xa khoom rau siab- tensile structural steel post-tempering thiab quenching.
Kev faib tawm: High - qib steel qauv.
Khoom: Zoo-grain steel ncej-quenching thiab tempering.
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) |
SWB 690V |
|
Fabkis (AFNOR) |
E690T |
Daim ntawv thov
S690Q steel yog siv nyob rau hauv cov qauv uas yuav tsum tau hnyav loads: mining thiab hnyav- khoom siv, crane khoom, offshore drilling platforms, txhawb cov qauv rau cua turbines, txuas hniav thiab trestles.
Vuam
S690Q steel yog haum rau vuam ua tsis tau preheating los yog tom qab kev kho cua sov. Nws yog organically weldable raws li nws tus cwj pwm thaum lub sij hawm thiab tom qab vuam nyob ntawm tsis tsuas yog nyob rau hauv cov khoom, tab sis kuj nyob rau hauv qhov ntau thiab tsawg thiab cov duab raws li zoo raws li cov khoom ua hauj lwm tej yam kev mob. Cov kev cai rau arc- vuam yuav tsum ua raws li EN 1011-2 tus qauv
Raws li cov khoom ntsuas thiab lub zog nce, txias -kev tawg yuav tshwm sim, tshwm sim los ntawm cov hauv qab no:
Qhov ntau ntawm diffusing hydrogen nyob rau hauv lub weld- seam hlau;
Qhov tseem ceeb nro- kev ntxhov siab ntau ntawm cov vuam seam.
Fragile qauv ntawm tshav kub- cuam tshuam cheeb tsam;
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 cov qauv tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
1.Dab tsi ntawm cov hlau yog S690?
S690Q yog ib qib siab - tawm los- lub zog cov qauv steel qib uas tau teev tseg hauv European tus qauv EN 10025-6, txhais tau tias nws yog ib qho muaj zog, zoo-grained steel siv rau hnyav loads, muab nyob rau hauv ib tug quenched thiab tempered (Q + T) mob rau kev txhim kho lub zog ntawm ib tug tsawg kawg nkaus thiab toughness 9. (megapascals). 'S' qhia txog cov qauv, '690' nws lub zog, thiab 'Q' nws cov kev kho cua sov.
2.Dab tsi yog qhov txawv ntawm S690Q thiab S690QL?
S690Q: Yam tsawg kawg nkaus toughness kuaj ntawm -20℃(30J nruab nrab). → Hom Kev Siv: Cranes nyob rau hauv huab cua sov, cov khoom siv hauv av. S690QL: Muaj ntawv pov thawj rau -40℃thiab qis dua (Ntau dua lossis sib npaug rau 40J cuam tshuam toughness). → Kev siv tseem ceeb: Arctic pipelines, offshore platforms, mining tsheb hauv Siberia.
3.Yog s690q yog cov hlau siab kawg?
Yog lawm, S690Q suav hais tias yog qhov siab - kawg, siab - lub zog cov qauv hlau (HSLA) paub txog nws lub zog zoo heev - rau- qhov hnyav piv, superior toughness, thiab kev ua tau zoo hauv qhov xav tau ib puag ncig, ua rau nws zoo tagnrho rau cov tshuab hnyav, cranes, txuas hniav, thiab lwm yam kev siv tseem ceeb uas cov hlau tsoos luv luv.