Taw qhia
Stainless hlau yog cov hlau alloy siab uas muaj kev tiv thaiv corrosion ntau dua li lwm cov hlau vim muaj cov chromium ntau ntau ntawm 4 txog 30%.Stainless hlau tau muab faib ua martensitic, ferritic thiab austenitic raws li lawv cov qauv crystalline.Hauv addititon, lawv tsim lwm pab pawg hu ua nag lossis daus-hardened steels, uas yog kev sib xyaw ntawm martensitic thiab austenitic steels.
Cov ntaub ntawv hauv qab no yuav muab cov ntsiab lus ntxiv txog qib 347H stainless hlau, uas yog me ntsis tawv dua qib 304 steel.
Tshuaj muaj pes tsawg leeg
Cov lus hauv qab no qhia cov tshuaj muaj pes tsawg leeg ntawm qib 347H stainless hlau.
| Element | Cov ntsiab lus (%) |
|---|---|
| Hlau, Fe | 62.83-73.64 ib |
| Chromium, Cr | 17–20 : kuv |
| Nickel, Nia | 9–13 |
| Manganese, Mn | 2 |
| Silicon, Sib | 1 |
| Niobium, Nb (Columbium, Cb) | 0.320—1 |
| Carbon, C | 0.04-0.10 Nws |
| Phosphorus, P | 0.040 ib |
| Sulfur, S | 0.030 Nws |
Lub cev muaj zog
Lub cev lub cev ntawm qib 347H stainless hlau tau muab rau hauv cov lus hauv qab no.
| Cov khoom | Metric | Imperial |
|---|---|---|
| Qhov ntom | 7.7-8.03g / cm3 | 0.278 - 0.290 lb/in³ |
Mechanical Properties
Cov khoom siv hluav taws xob ntawm qib 347H stainless hlau tau nthuav tawm hauv cov lus hauv qab no.
| Cov khoom | Metric | Imperial |
|---|---|---|
| Tensile zog, qhov kawg | 480 MPa rau | 6 9600 psi |
| Tensile zog, tawm los | 205 MPa | 29 700 psi |
| Rupture zog (@750 ° C / 1380 ° F, lub sij hawm 100,000 teev) | 38-39 MPa, | 5510-5660 psi |
| Elastic modulus | 190-210 GPa | 27557 – 30458 TZS |
| Poisson tus piv | 0.27-0.30 Nws | 0.27-0.30 Nws |
| Elongation thaum so | 29% | 29% |
| Hardness, Brinell | 187 | 187 |
Post lub sij hawm: Mar-30-2023