S690Q(1.8940) Steel Technical Specifications & Summary
Cov ntaub ntawv yooj yim - Qib: S890Q - Khoom Naj Npawb
1.8940 - Kev faib tawm: Alloy tshwj xeeb steel nrog cov lus qhia tsawg kawg nkaus rau lub zog ntawm qhov kub tsis qis dua -20℃- Qib sib npaug: Tsis muaj ntaub ntawv
Cov qauv siv tau
TS EN 10025-6: 2004 Kev xa khoom rau cov khoom kub dov ntawm cov qauv hlau (siab yield zog structural steels hauv quenched thiab tempered mob)
2. EN 10137-2: 1996: Kev xa khoom rau quenched thiab tempered daim hlau / dav flats ua los ntawm high yield zog cov qauv hlau
Cov tshuaj muaj pes tsawg leeg ntawm cov hlau S890Q (1.8940): EN 10025-6-2004
| Nominal thickness =< 50(mm) CEVmax=0.72 Nyob ntawm qhov tuab ntawm cov khoom thiab cov kev tsim khoom, cov chaw tsim khoom tuaj yeem ntxiv rau cov hlau ib lossis ob peb lub ntsiab lus alloying mus txog qhov siab tshaj plaws uas tau muab rau kom tau txais cov khoom teev tseg. Nb, Ti, V, Zr: Yuav tsum muaj tsawg kawg yog 0.015% ntawm cov nplej- ua kom zoo dua tam sim no.ALkuj yog ib qho ntawm cov ntsiab lus no. Qhov tsawg kawg nkaus cov ntsiab lus ntawm 0.015% siv rau soluble aluminium, tus nqi no yog suav tias yog attained yog tias tag nrho cov ntsiab lus txhuas yog tsawg kawg yog 0.018%; Nyob rau hauv cov ntaub ntawv ntawm kev tsis sib haum xeeb cov ntsiab lus ntawm soluble aluminium yuav tsum tau txiav txim |
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Cu | Zr | B | CEV |
| max 0.2 hli | max 0.8 hli | max 1.7 Nws | max2 ua | max 0.025 | max 0.015 | max 1.5 hli | max 0.7 hli | max 0.12 | max 0.015 | max 0.06 | max 0.05 Nws | max 0.5 hli | max 0.15 Nws | max 0.005 Nws | max 0.82 |
Mechanical zog ntawm steel S890Q (1.8940)
| Nominal thickness (hli): | 3 - 50 | 50 - 100 |
| Rm- Tensile zog (MPa) | 940-1100 | 880-1100 |
| Nominal thickness (hli): | 3 - 50 | 50 - 100 |
| ReH- Tsawg tshaj tawm lub zog (MPa) | 890 | 830 |
| KV- Impact zog (J) longitud., | 0 degree 40 |
-20 degree 30 |
| A- Min. elongation Lo=5,65 √ Yog li (%) | 11 |
Kub khocov xwm txheej
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Cov ntsiab lus tseem ceeb ntawm S890Q (1.8940)
S890Q (cov ntaub ntawv naj npawb 1.8940) yog quenched -tempered siab- tawm los- lub zog alloy tshwj xeeb steel ua raws li cov qauv zoo li EN 10025-6. Nws nta qis -carbon, qis- impurity muaj pes tsawg leeg (C Tsawg dua lossis sib npaug rau 0.2%, CEV Tsawg dua lossis sib npaug rau 0.82), ntsuas lub zog thiab kev ua haujlwm. Nws cov khoom sib txawv ntawm cov tuab: yield zog Ntau dua lossis sib npaug ntawm 890MPa (3-50mm) lossis Ntau dua lossis sib npaug ntawm 830MPa (50-100mm), tensile zog 880-1100MPa, thiab cuam tshuam lub zog 40J (0 degree) / 30J (-20 degree). Nws yog ib qho khoom siv rau cov khoom siv hnyav hnyav uas xav tau lub zog siab thiab qhov kub thiab txias toughness.
Cov tsiaj ntawv thiab cov lej hauv S890Q txhais li cas?
"S" sawv cev rau cov qauv hlau, "890" yog 890MPa yield zog, "Q" txhais tau tias quenched & tempered tus me nyuam mob.
Cov khoom siv hauv teb chaws twg S890Q cuam tshuam li cas? Nws ua raws li tus qauv twg?
Nws sib haum rau GB Q890 quenched -tempered siab- lub zog steel thiab ua raws li EN10025-6 European tus qauv.
Dab tsi yog qhov tseem ceeb welding ceev faj rau S890Q?
Preheat 100-150℃ua ntej welding, siv lub zog pulse, thiab xaiv ER69-G rov qab xaim los tiv thaiv kev tawg.
Dab tsi yog qhov tseem ceeb ntawm cov cuab yeej ntsuas ntawm S890Q?
Chav-kub tensile zog 940-1100MPa, -40℃cuam tshuam lub zog Ntau dua lossis sib npaug rau 40J, tawm los Ntau dua lossis sib npaug rau 890MPa (thickness Tsawg dua lossis sib npaug li 50mm).
Hauv cov teb twg yog S890Q feem ntau siv?
Nws yog siv rau engineering machinery caj npab, cua fais fab flanges, choj load-cov kabmob qhov chaw, thee mine hydraulic txhawb.