Isingeniso
Izinsimbi ezingagqwali ziyizinsimbi ezinengxubevange ephezulu ezinokumelana nokugqwala okuphezulu kunezinye izinsimbi ngenxa yokuba khona kwenani elikhulu le-chromium ebangeni elingu-4 kuye ku-30%.Izinsimbi ezingenasici zihlukaniswa zibe i-martensitic, i-ferritic ne-austenitic ngokusekelwe kusakhiwo sazo se-crystalline.Ku-addititon, bakha elinye iqembu elaziwa ngokuthi izinsimbi eziqinile zemvula, okuyinhlanganisela yezinsimbi ze-martensitic kanye ne-austenitic.
Idatha elandelayo izohlinzeka ngemininingwane eyengeziwe mayelana ne-grade 347H yensimbi engagqwali, eqine kancane kune-grade 304 steel.
Ukwakheka Kwamakhemikhali
Ithebula elilandelayo libonisa ukwakheka kwamakhemikhali ebangeni elingu-347H lensimbi engagqwali.
| Isici | Okuqukethwe (%) |
|---|---|
| Iron, Fe | 62.83 – 73.64 |
| I-Chromium, uCr | 17-20 |
| Nickel, Ni | 9-13 |
| IManganese, Mn | 2 |
| Silicon, Si | 1 |
| I-Niobium, Nb (Columbium, Cb) | 0.320 - 1 |
| Carbon, C | 0.04 - 0.10 |
| I-Phosphorous, P | 0.040 |
| Isibabule, S | 0.030 |
Izakhiwo Zomzimba
Izici ezibonakalayo zebanga 347H zensimbi engagqwali zinikezwe etafuleni elilandelayo.
| Izakhiwo | Imethrikhi | I-Imperial |
|---|---|---|
| Ukuminyana | 7.7 – 8.03 g/cm3 | 0.278 – 0.290 lb/in³ |
Izakhiwo Zemishini
Izakhiwo zemishini zebanga 347H zensimbi engagqwali ziboniswa kuthebula elilandelayo.
| Izakhiwo | Imethrikhi | I-Imperial |
|---|---|---|
| Amandla aqinile, ekugcineni | 480 MPa | Idatha ye-69600 |
| Amandla aqinile, isivuno | 205 MPa | 29700 psi |
| Amandla okuqhekeka (@750°C/1380°F, isikhathi amahora angu-100,000) | 38 - 39 MPa, | 5510 - 5660 psi |
| I-Elastic module | 190 - 210 GPA | 27557 - 30458 ksi |
| Isilinganiso sikaPoisson | 0.27 - 0.30 | 0.27 - 0.30 |
| Elongation ngesikhathi sekhefu | 29% | 29% |
| Ukuqina, Brinell | 187 | 187 |
Isikhathi sokuthumela: Mar-30-2023