ASTM A514 Qib Q ASTM A514 / A514M Taw Qhia
Qhov nrov tshaj plaws ASTM A514 Qib Q ASTM A514 / A514M steel qib yog A514-B, A514-Q, thiab A514-H. Cov qhabnias no txawv ntawm lawv qhov kev ua tau zoo thiab kev cia siab rau. Qib A514-B yog qib feem ntau thiab feem ntau siv rau cov txuas hniav, cov tsev, thiab cov khoom siv. Qib A514-Q feem ntau yog siv rau cov hlab ntsha siab thiab cov tso tsheb hlau luam thiab qib A514-H feem ntau yog siv rau hauv kev tsim cov mining, roj kav dej, thiab kev siv sab nrauv.
Peb lub tuam txhab yog thoob ntiaj teb cov khoom siv raw hlau thiab steel khoom.ASTM A514 Qib Q ASTM A514 / A514Myog ib qho ntawm peb cov khoom tseem ceeb steel. Lwm yam tshaj li cov khoom tshiab, peb kuj muaj cov khoom loj ASTM A514 / A514M kom tau raws li qhov xav tau ntawm cov neeg siv khoom sai. ASTM A514 Qib Q ASTM A514 / A514M muaj nyob hauv ntau qhov ntau thiab tsawg thiab tuaj yeem ua raws li cov neeg siv khoom xav tau. Tsis tas li ntawd, peb muab cov kev pabcuam ua haujlwm, xws li: txiav, khoov, drilling, vuam thiab lwm yam kev pabcuam.
Daim ntawv thov:High yield zog alloy steel phaj rau tempering thiab quenching rau vuam.
Thaum tshav kub kub kho:1523 degree - 1288 degree .
ASTM A514 Qib Q ASTM A514 / A514M Chemical Element
ASTM A514 Qib Q ASTM A514 / A514M yog cov hlau thiab carbon thiab lwm yam khoom. Vim nws lub zog tensile siab thiab tus nqi qis, nws yog ib qho tseem ceeb ntawm cov khoom siv hauv tsev, infrastructure, cov cuab yeej, nkoj, tsheb, tshuab, khoom siv. ASTM A514 Qib Q ASTM A514 / A514M tshuaj lom neeg muaj pes tsawg leeg txiav txim siab los ntawm kev tsom xam ladle yuav tsum ua raws li cov lus teev tseg hauv qab no.
| Element | Min | Max | Zoo sib xws |
|---|---|---|---|
| V | 0.0300 | 0.0800 | - |
| Si | 0.1500 | 0.3500 | - |
| S | - | 0.0350 | - |
| P | - | 0.0350 | - |
| Ni | 1.2000 | 1.5000 | - |
| Mo | 0.4000 | 0.6000 | - |
| Mn | 0.9500 | 1.3000 | - |
| Cr | 1.0000 | 1.5000 | - |
| C | 0.1400 | 0.2100 | - |
ASTM A514 Qib Q ASTM A514 / A514M Mechanical Properties
Cov khoom siv tseem ceeb yog elasticity, plasticity, nruj, aging rhiab heev, lub zog, hardness, cuam tshuam toughness, qaug zog thiab tawg toughness.
Elasticity:Cov khoom siv hlau deforms thaum nws raug rau sab nraud quab yuam. Thaum lub zog sab nraud raug tshem tawm, nws tuaj yeem rov qab tau nws qhov qub.
Plasticity:Lub peev xwm ntawm ASTM A514 Qib Q ASTM A514 / A514M los tsim cov deformation mus tas li yam tsis muaj kev puas tsuaj rau sab nraud.
Kev nruj:Lub peev xwm ntawm ASTM A514 Qib Q ASTM A514 / A514M los tiv thaiv elastic deformation nyob rau hauv kev ntxhov siab.
Lub zog:Lub peev xwm ntawm ASTM A514 Qib Q ASTM A514 / A514M los tiv thaiv deformation thiab tawg nyob rau hauv sab nraud rog.
Hardness:Lub peev xwm ntawm ASTM A514 Qib Q ASTM A514 / A514M los tiv thaiv lub siab ntawm cov khoom nyuaj rau hauv nws.
Impact toughness:Lub peev xwm ntawm ASTM A514 Qib Q ASTM A514 / A514M los tiv thaiv kev puas tsuaj hauv kev cuam tshuam kev thauj khoom.
Fatigue zog:Qhov siab tshaj plaws uas tsis ua rau pob txha tawg thaum ASTM A514 Qib Q ASTM A514 / A514M raug rau ntau qhov rov ua dua lossis hloov pauv.
Fracture toughness:Kev ntsuas kev ua tau zoo siv los cuam tshuam ASTM A514 Qib Q ASTM A514 / A514M muaj peev xwm tiv thaiv kev tawg tsis ruaj khov thiab nthuav dav
| Yield Rp0.2(MPa) |
Tensile Rm(MPa) |
Kev cuam tshuam KV/Ku (J) |
Elongation A (%) |
Kev txo qis hauv ntu ntu ntawm pob txha Z (%) |
Raws li-kub-kho mob | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 627 (Ntau dua lossis sib npaug) | 712 (Ntau dua lossis sib npaug) | 33 | 41 | 14 | Kev daws thiab Kev laus, Annealing, Ausaging, Q + T, thiab lwm yam | 211 |
ASTM A514 Qib Q ASTM A514 / A514M Lub cev muaj zog
Lub cev lub cev ntawm ASTM A514 Qib Q ASTM A514 / A514M feem ntau npog cov qauv ntawm elasticity, coefficient ntawm thermal expansion, thermal conductivity, tshwj xeeb thermal muaj peev xwm, hluav taws xob tsis kam nqi, ntom, poisson tus piv, thiab lwm yam.
| Kub (degree) |
Modulus ntawm elasticity (GPa) |
Lub ntsiab lus coefficient ntawm thermal expansion 10-6/( degree ) ntawm 20 (degree) thiab | Thermal conductivity (W / m· degree) |
Tshwj xeeb thermal muaj peev xwm (J / kg · degree) |
Tshwj xeeb hluav taws xob resistivity (Ω mm² / m) |
Qhov ntom (kg/dm³) |
Poisson tus coefficient, ν |
|---|---|---|---|---|---|---|---|
| 22 | - | - | 0.23 | - | |||
| 242 | 878 | - | 11.3 | 433 | - | ||
| 286 | - | 31 | 43.2 | 112 | 411 |
