P690QL 1 yog siab -yield, quenched thiab tempered (Q + T) zoo-grain steel qib siv rau lub hom phiaj siab, ua raws li covTS EN 10028-6txheem.
Lub npe tawg
P: Steel rau lub hom phiaj siab.
690: Yam tsawg kawg nkaus yield zog ntawm 690 MPa (rau thickness Tsawg dua los yog sib npaug rau 50mm).
Q: Quenched thiab Tempered tus me nyuam mob.
L1: Tsawg-kub zoo, sim rau kev cuam tshuam lub zog ntawm-40 degree.
Hlau Number: 1.8881.
Cov tshuaj muaj pes tsawg leeg ntawm steel P690QL1 (1.8881): EN 10028-9-2003
| Raws li EN 10216-3: 2014: 1.2=< Mn=<1.7; P=<0.025; S=<0.015; Al=<0.02; |
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Cu | Zr | B |
| max 0.2 hli | max 0.8 hli | max 1.7 Nws | max 2.5 hli | max 0.02 Nws | max 0.008 Nws | max 1.5 hli | max 0.7 hli | max 0.12 | max 0.015 | max 0.06 | max 0.05 Nws | max 0.3 hli | max 0.15 Nws | max 0.005 Nws |
Mechanical zog ntawm steel P690QL1 (1.8881)
| Nominal thickness (hli): | rau 100 | 100 - 150 |
| Rm- Tensile zog (MPa) (+ QT) | 770-940 | 720-900 |
| Nominal thickness (hli): | rau 50 | 50 - 100 | 100 - 150 |
| ReH- Yam tsawg kawg nkaus tawm lub zog (MPa) (+ QT) | 690 | 670 | 630 |
| Nominal thickness (hli): | rau 20 | 20 - 40 | 40 - 50 | 50 - 65 | 65 - 80 | 80 - 100 |
| Rp0.20.2% pov thawj lub zog (MPa) (+ QT) | 690 | 650 | 615 | 580 | 540 | 500 |
| KV- Impact zog (J) transverse, (+QT) | -40 degree 27 |
-20 degree 31-40 |
0 degree 39-60 |
+20 degree 43 |
| KV- Impact zog (J) longitud., (+QT) | -30 degree 40 |
-20 degree 47 |
-10 degree 53 |
0 degree 60 |
+20 degree 65 |
| A- Min. elongation ntawm pob txha (%) (+ QT) | 14-16 |
Tej kev siv
Cov hlau no yog tsim los rau siab - ib puag ncig kev ntxhov siab uas txo qhov hnyav thiab kev nyab xeeb yog qhov tseem ceeb:
Cov nkoj siab: Loj - lub tank ntim rau cov pa roj lossis kua dej.
Boilers: High-siab muaj boiler Cheebtsam.
Lub zog tiam: Penstocks rau hydroelectric fais fab chaw nres tsheb thiab nuclear reactor Cheebtsam.
Kev lag luam tshuaj: High-siab reactors thiab kub exchangers.
Kev txiav txim siab
Weldability: Thaum weldable, lub zog siab yuav tsum tau tswj nruj ntawm cov txheej txheem vuam.
Preheating(feem ntau yog 130℃-150 degree) feem ntau yog tsim nyog los tiv thaiv qhov txias txias.
Kev kho cua sov: Xa hauv lub xeev Quenched thiab Tempered. Tom qab kub sib sau los yog Post-Weld Heat Treatment (PWHT) yuav tsum tau ua tib zoo tswj kom tsis txhob txo cov khoom siv tshuab.
Tiv tauj peb ntawm beam@gneesteelgroup.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.
Qhov kev pabcuam kub ntawm P690QL1 yog dab tsi?
Qhov kev pabcuam kub ntawm P690QL1 feem ntau yog -20℃txog 500 degree. Tshaj li qhov no, nws cov khoom siv kho tshuab tuaj yeem poob qis, yog li nws yuav tsum tau siv nyob rau hauv qhov ntsuas kub ntawm qhov kev siv hauv engineering.
Qhov txawv ntawm P690QL1 thiab Q690 steel yog dab tsi?
P690QL1 yog European tus qauv hlau (EN 10025-6), thaum Q690 yog Suav tus qauv hlau (GB/T 1591). Cov yav tas los muaj kev nruj dua qhov kub thiab txias cuam tshuam rau qhov yuav tsum tau muaj zog, thiab cov tshuaj lom neeg muaj pes tsawg leeg thiab cov qauv ntsuas kuj txawv me ntsis.
Puas yog P690QL1 yog quenched thiab tempered steel?
Yog lawm, P690QL1 yog quenched thiab tempered siab -lub zog steel. Quenching (ceev txias tom qab cua sov rau austenitizing kub) thiab tempering (cua sov rau ib tug tej yam kub thiab txias) muab nws zoo heev zog thiab toughness txuam.
Qhov siab tshaj plaws thickness ntawm P690QL1 daim hlau yog dab tsi?
Qhov siab tshaj plaws thickness ntawm P690QL1 daim hlau tuaj yeem ncav cuag 150 hli (nyob ntawm cov tuam ntxhab). Cov phaj tuab xav tau kev kho cua sov nruj kom ntseeg tau tias cov khoom siv kho tshuab tsis sib xws thoob plaws hauv cov tuab.
Yuav khaws cov ntaub ntawv P690QL1 li cas?
P690QL1 yuav tsum tau muab cia rau hauv qhov chaw qhuav, zoo- lub tsev tso cua kom tsis txhob ya raws thiab xeb. Nws yuav tsum tau muab tso kom deb ntawm cov khoom corrosive thiab stacked zoo kom tsis txhob deformation thiab puas.
Cov txheej txheem machining zoo li cas rau P690QL1?
P690QL1 yog tsim rau tig, milling, drilling, sib tsoo thiab lwm yam machining txoj kev. Siab -cov cuab yeej ceev hlau lossis cov cemented carbide yuav tsum tau siv, thiab cov kev txiav kom raug yuav tsum tau teeb tsa kom ntseeg tau tias kev ua haujlwm tau zoo thiab qhov chaw zoo.
P690QL1 puas tuaj yeem siv los ua cov hlab ntsha siab?
Yog lawm, P690QL1 tuaj yeem siv los ua cov hlab ntsha nruab nrab thiab qis. Nws lub zog siab thiab zoo toughness tuaj yeem ua tau raws li qhov siab - bearing yuav tsum tau ntawm cov hlab ntsha, tab sis nws yuav tsum tau dhau nruj soj ntsuam thiab ntawv pov thawj.
P690QL1 puas tuaj yeem siv rau hauv kev lag luam sab nrauv?
Yog lawm, P690QL1 yog dav siv nyob rau hauv offshore engineering. Nws lub zog siab, zoo heev cuam tshuam toughness thiab corrosion kuj tuaj yeem tiv taus qhov hnyav marine ib puag ncig (high humidity, ntsev tsuag, cua thiab yoj loads).
Dab tsi yog qhov preheating kub rau P690QL1 vuam?
Lub preheating kub rau P690QL1 vuam yog feem ntau 80-150 degree. Preheating tuaj yeem txo qhov kub ntawm qhov chaw vuam, tiv thaiv cov kab nrib pleb, thiab txhim kho qhov zoo ntawm qhov sib koom ua ke.
P690QL1 yog dab tsi?
Qhov saum npoo ntawm P690QL1 yuav tsum tsis muaj kab nrib pleb, folds, nti, delaminations thiab lwm yam tsis xws luag. Qhov chaw me me tuaj yeem kho tau los ntawm kev sib tsoo, tab sis lub thickness tom qab kho yuav tsum tsis txhob tsawg dua qhov tsawg kawg nkaus tus nqi.