4140 High Tensile Steel
Khoom Piav Qhia 4140 Chemical Composition Physical Properties 4140 Mechanical Properties Nyob rau hauv cov nqe lus ntawm nws cov tshuaj muaj pes tsawg leeg, 4140 steel muaj ib tug sib npaug ntawm cov alloying ntsiab xws li chromium, molybdenum, thiab manganese. Cov ntsiab lus no ua haujlwm synergistically los txhim kho nws ...
Hauj lwm lawm
Khoom Description
4140 Tshuaj muaj pes tsawg leeg
| Element | Cov ntsiab lus (%) |
|---|---|
| Chromium, Cr | 0.80 - 1.10 |
| Manganese, Mn | 0.75 - 1.0 |
| Carbon, C | 0.380 - 0.430 |
| Silicon, Sib | 0.15 - 0.30 |
| Molybdenum, Mo | 0.15 - 0.25 |
| Sulfur, S | 0.040 |
| Phosphorus, P | 0.035 |
| Hlau, Fe | Tshuav |
Lub cev muaj zog
| Cov khoom | Metric | Imperial |
|---|---|---|
| Qhov ntom | 7.85 g / cm²3 | 0.284 lb/in³ |
| Melting point | 1416 degree | 2580 degree F |
4140 Mechanical Properties
| Cov khoom | Metric | Imperial |
|---|---|---|
| Tensile zog | 655 MPa ua | 95 000 psi |
| Yield zog | 415 MPa rau | 60 200 psi |
| Bulk modulus (tseem ceeb rau steel) | 140 GPa | 20 300 TZS |
| Shear modulus (zoo rau steel) | 80 gpa ua | 11600 Nws |
| Elastic modulus | 190-210 GPa | 27557-30458 tsi |
| Poisson tus ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation ntawm tawg (hauv 50 mm) | 25.70% | 25.70% |
| Hardness, Brinell | 197 | 197 |
| Hardness, Knoop (hloov los ntawm Brinell hardness) | 219 | 219 |
| Hardness, Rockwell B (hloov los ntawm Brinell hardness) | 92 | 92 |
| Hardness, Rockwell C (hloov los ntawm Brinell hardness. Tus nqi qis dua li HRC ntau, rau kev sib piv nkaus xwb) | 13 | 13 |
| Hardness, Vickers (hloov los ntawm Brinell hardness) | 207 | 207 |
| Machinability (raws li AISI 1212 li 100 machinability) | 65 | 65 |
Nyob rau hauv cov nqe lus ntawm nws cov tshuaj muaj pes tsawg leeg, 4140 steel muaj ib tug sib npaug ntawm cov alloying ntsiab xws li chromium, molybdenum, thiab manganese. Cov ntsiab lus no ua haujlwm sib koom ua ke los txhim kho nws qhov nyuaj, toughness, thiab tsis kam hnav thiab corrosion. Qhov kev faib ua feem ntawm cov ntsiab lus no tau ua tib zoo tswj thaum lub sijhawm tsim khoom kom ntseeg tau tias kev ua tau zoo thiab txhim khu kev qha.
Kev tsim khoom ntawm 4140 siab tensile steel muaj cov txheej txheem siab heev thiab kev tswj xyuas nruj. Nws feem ntau dhau los ua cov txheej txheem xws li kev kho cua sov, uas tuaj yeem txhim kho nws cov cuab yeej cuab tam los ntawm kev ua kom zoo dua microstructure ntawm cov hlau. Qhov no ua rau cov khoom siv muaj zog, ductility, thiab toughness, ua rau nws haum rau ntau yam kev thov.
Thaum nws los txog rau kev siv, 4140 steel yog dav siv hauv kev lag luam tsheb rau kev tsim khoom xws li crankshafts, axles, thiab gears. Nws lub zog tensile siab thiab kev qaug zog zoo ua rau nws muaj peev xwm tiv taus lub voj voog thiab kev ntxhov siab hauv cov khoom no. Nyob rau hauv kev lag luam aerospace, nws yog siv nyob rau hauv fabrication ntawm structural Cheebtsam thiab tsaws iav vim nws lub zog thiab kev cia siab rau. Tsis tas li ntawd, nyob rau hauv kev lag luam roj thiab roj, 4140 steel yog ua hauj lwm nyob rau hauv zus tau tej cov drill dab tshos thiab lub taub hau cov cuab yeej, qhov twg nws muaj peev xwm tiv taus cov kev ua hauj lwm hnyav thiab high pressures.
Hauv kev xaus, 4140 siab tensile steel yog cov khoom tseem ceeb hauv kev lag luam niaj hnub no. Nws qhov tshwj xeeb ua ke ntawm cov khoom thiab ntau yam ua rau nws yog qhov kev xaiv tseem ceeb rau ntau yam kev siv. Kev tshawb fawb txuas ntxiv thiab kev txhim kho hauv kev tsim cov hlau yuav ua rau muaj kev txhim kho ntxiv ntawm 4140 steel thiab nthuav dav nws siv hauv kev lag luam tshiab thiab tsim tshiab, pab txhawb kev thev naus laus zis thiab kev loj hlob ntawm kev lag luam.
Cim npe nrov: 4140 siab tensile steel, Tuam Tshoj 4140 siab tensile steel lwm tus neeg, hoobkas
