SA514 Qib Eyog lub siab -lub zog, quenched thiab tempered alloy steel phaj paub rau zoo heev toughness, weldability, thiab tej yam kuj, tshwj xeeb tshaj yog nyob rau hauv qis kub, siv nyob rau hauv cov khoom hnyav, kev tsim kho, thiab mobile platforms. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 100 ksi (txog 2.5 "tuab) thiab 90 ksi (dhau 2.5" mus rau 6" tuab), muaj cov khoom siv tshwj xeeb ntxiv xws li Chromium thiab Molybdenum rau kev txhim kho kev ua tau zoo hauv kev thov cov qauv siv.
Cov yam ntxwv tseem ceeb
High Strength: Muab siab yield thiab tensile lub zog rau lub teeb yuag tsis tau muaj zog Cheebtsam.
Toughness: Zoo heev cuam tshuam toughness, txawm nyob rau hauv ib puag ncig txias, ua rau nws zoo tagnrho rau qis - kub kev pab cuam.
Weldability: Tsim los rau kev siv cov qauv, nws yog weldable nrog preheat kom zoo thiab txwv cua sov input.
Chemical Composition: Muaj Chromium (1.40-2.00%) thiab Molybdenum (0.40-0.60%), nrog rau cov pa roj carbon, Manganese, Silicon, Titanium, thiab Boron.
Dab tsi yog qhov Yield Strength ntawm SA514 Qib E?
Lub zog tawm los ntawm SA514 Qib E nyob ntawm qhov tuab ntawm cov khoom siv, uas yog tus yam ntxwv tseem ceeb ntawm qhov siab -lub zog, quenched thiab tempered alloy steel.
Ntawm no yog cov ncauj lus kom ntxaws specifications raws li ASTM A514 / A514M tus qauv:
SA514 Qib E Yield Strength (tsawg kawg)
| Khoom Thickness (t) | Yam tsawg kawg nkaus Yield Strength (0.2% Offset) |
|---|---|
| Phaj mus txog 1.25 nti (31.75 mm) incl. | 100 ksi (690 MPa) |
| Phaj tshaj 1.25 rau 2.5 nyob rau hauv (31.75 mus 63.5 mm) incl. | 90 ksi (620 MPa) |
Cov ntsiab lus tseem ceeb & Cov ntsiab lus:
1. Thickness yog qhov tseem ceeb:Raws li koj tuaj yeem pom, lub zog tawm los txo qis rau cov ntu tuab. Qhov no yog vim hais tias cov khoom thicker cools qeeb qeeb thaum lub sij hawm quenching txheej txheem, uas ua rau ib tug me ntsis hardened microstructure. Nco ntsoov qhia qhov tuab thaum thov lossis siv qib no.
2. Tensile zog:Rau kev ua tiav, lub zog tensile ntau rau SA514 Qib E yog:
Mus txog 1.25 in: 110-130 ksi (760-895 MPa)
Tshaj 1.25 rau 2.5 nyob rau hauv: 100-130 ksi (690-895 MPa)
3. Cov ntawv thov ib txwm:SA514 Qib E paub txog nws lub zog zoo heev - rau - qhov hnyav piv thiab feem ntau yog siv rau hauv kev thov cov qauv siv xws li:
Cov cuab yeej siv hnyav (cranes, booms, thav duab)
Cov cuab yeej siv mining
Txuas hniav (tshwj xeeb tshaj yog qhov txo qhov hnyav yog qhov tseem ceeb)
Kev tsim kho siab - nce siab
Lwm yam khoom siv uas yuav tsum tau muaj zog heev thiab toughness.
4. Weldability:Thaum nws yog weldable, nws yuav tsum tau nruj me ntsis ua raws li cov pre{0}} cua sov, ncej- vuam cua sov, thiab cov txheej txheem vuam tshwj xeeb (feem ntau siv qis- hydrogen electrodes) vim nws cov hardenability siab thiab carbon sib npaug (CE). Kev vuam tsis raug tuaj yeem ua rau tawg hauv tshav kub- thaj chaw cuam tshuam (HAZ).
5.Alternative Designation:Qib no feem ntau raug xa mus rau kev lag luam raws li "T1" steel, lub npe lag luam los ntawm nws tus tsim tawm thawj. Txawm li cas los xij, "T1" qee zaum siv dav dav, yog li kev qhia meej ASTM A514 Qib E yog qhov tseem ceeb rau kev yuav khoom.
Cov ntsiab lus:
Rau feem ntau daim ntawv thov (phaj thickness Tsawg dua los yog sib npaug rau 1.25 nti), qhov tsawg kawg nkaus yield zog ntawm SA514 Qib E yog 100 ksi (690 MPa). Ib txwm paub meej tias qhov yuav tsum tau ua tuab tuab thiab sab laj qhov kev tshaj tawm tshiab ntawm ASTM A514 tus qauv lossis koj tus neeg muab khoom siv rau cov ntawv thov tseem ceeb.
ASME SA514 Gr.E / SA514 Qib E Alloy Steel Phaj Chemical Composition
| Qib | C | Mn | P | S | SI | Ni | Cr | Mo | V | Ti | Zr | Cu | B |
| SA514 Gr.E | 0.12-0.20 | 0.40-0.70 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua los yog sib npaug li 0.04 | 0.20-0.35 | ~ | 1.40-2.00 | 0.40-0.60 | ~ | 0.04-0.10 | ~ | 0.20-0.40 | 0.0015-0.005 |
ASME SA514 Gr.E/SA514 Qib E Alloy Steel Phaj Mechanical Property
| Qib | Thickness nti | Yield zog | Tensile zog | Elongation hauv 50mm | Hardnee Brinell |
| SA514 Gr.E | tsawg dua 3/4 nti | 690mpa ua | 760-895 hli | 18% | 235 |
| tshaj 3/4 rau 2 1/2 | 690mpa ua | 760-895 hli | 18% | ~ | |
| tshaj 2 1/2 txog 6 nti | 620mpa ua | 690-895 | 16% |
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1. Dab tsi yog SA514 Qib E Hlau?
SA514 Qib E yog siab - lub zog, quenched thiab tempered alloy steel phaj nyob rau hauv ASTM A514 / SA514 specification, tsim rau cov ntawv thov uas yuav tsum tau muaj ib tug sib npaug ntawm high yield zog thiab zoo heev toughness.
2. Dab tsi yog qhov Yield Strength ntawm SA514 Qib E?
Qhov tsawg kawg nkaus yield zog ntawm SA514 Qib E yog 100 ksi (690 MPa) rau thicknesses txog 2.5 nti (63.5 hli). Rau cov phaj tuab, qhov tsawg kawg nkaus yield zog txo.
3. Qhov txawv ntawm SA514 Qib E thiab Qib F yog dab tsi?
Thawj qhov sib txawv yog cov tshuaj muaj pes tsawg leeg. Qib E feem ntau muaj cov qib sib txawv ntawm cov khoom sib txawv (xws li Chromium, Molybdenum, thiab Boron) piv rau Qib F, uas tuaj yeem cuam tshuam rau hardenability, weldability, thiab cov ntawv thov tshwj xeeb, txawm tias ob leeg muaj 100 ksi min yield.
4. Puas yog SA514 Qib E Weldable?
Yog, tab sis nrog cov txheej txheem nruj. Nws yuav tsum tau preheating, siv tsawg -hydrogen electrodes, thiab tswj cov cua sov input los tiv thaiv kev tawg thiab tswj cov khoom siv hluav taws xob hauv tshav kub- thaj chaw cuam tshuam (HAZ).
5. Dab tsi yog SA514 Qib E siv rau?
Nws yog siv rau hauv cov txheej txheem kev nyuab siab heev rau kev tsim kho hnyav thiab cov khoom siv mining, xws li crane booms, excavator caj npab, thiab thav duab uas yuav tsum muaj zog thiab toughness.
6. Cov tshuaj muaj pes tsawg leeg ntawm SA514 Qib E yog dab tsi?
Nws cov ntsiab lus muaj xws li Carbon (~ 0.15-0.21%), Manganese (~ 0.80-1.10%), Silicon (~ 0.40-0.80%), Chromium (~ 0.50-0.80%), Molybdenum (~ 0.18-0.28%), Vanadium (~ 0.08%), thiab 0. (0.0005-0.005%).
7. Qhov Hardness ntawm SA514 Qib E yog dab tsi?
Brinell hardness ntau yam rau SA514 Qib E yog 235-293 HBW (kwv yees li 22-30 HRC), zoo ib yam li lwm qib zoo li Qib F, vim nws kuj yog ib qho quenched thiab tempered steel.
8. Ua li cas SA514 Qib E piv rau T1 Hlau?
SA514 Qib Eyogib hom T1 steel. "T1" yog lub npe lag luam keeb kwm rau A514 / SA514 quenched thiab tempered steels. Qib E yog ib qho tshuaj muaj pes tsawg leeg sib txawv raws li tus qauv no.
9. SA514 Qib E puas tuaj yeem txiav nplaim taws?
Yog, nws tuaj yeem raug nplaim taws, tab sis nws yuav tsum tau tswj cov txheej txheem. Preheating ua ntej txiav thiab qeeb, tswj kom txias (feem ntau los ntawm kev siv cov cua sov torches) yog tsim nyog los tiv thaiv kev tsim ntawm nyuaj, tawg - rhiab zones raws ntug txiav.
10. Qhov sib npaug ntawm SA514 Qib E Hauv Tebchaws Europe yog dab tsi?
Tsis muaj qhov ncaj, zoo tib yam European sib npaug. Cov qib ze tshaj plaws nyob rau hauv cov nqe lus ntawm lub zog siab thiab quenched & tempered mob yog S690QL los yog S690QL1 (EN 10025-6), txawm tias lawv cov tshuaj muaj pes tsawg leeg sib txawv.
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.
