Okwu mmalite
Igwe igwe anaghị agba nchara bụ ihe nchara dị elu nke nwere nguzogide corrosion dị elu karịa nchara ndị ọzọ n'ihi ọnụnọ nke chromium buru ibu na nso 4 ruo 30%.A na-ekewa igwe anaghị agba nchara n'ime martensitic, ferritic na austenitic dabere na nhazi kristal ha.Na addititon, ha na-etolite otu ọzọ a maara dị ka mmiri ozuzo siri ike, nke bụ ngwakọta nke martensitic na austenitic steels.
Akwụkwọ data na-esonụ ga-enye nkọwa ndị ọzọ gbasara ọkwa 347H igwe anaghị agba nchara, nke siri ike karịa ọkwa 304 ígwè.
Ngwakọta kemịkalụ
Tebụl na-esonụ na-egosi ihe mejupụtara kemịkalụ nke ọkwa 347H igwe anaghị agba nchara.
| Ihe | Ọdịnaya (%) |
|---|---|
| Iron, Fe | 62.83 - 73.64 |
| Chromium, Cr | 17-20 |
| Nickel, Nne | 9-13 |
| Manganese, Mn | 2 |
| Silik, Si | 1 |
| Niobium, Nb (Columbium, Cb) | 0.320-1 |
| Carbon, C | 0.04 - 0.10 |
| Phosphorous, P | 0,040 |
| Sulfur, S | 0,030 |
Njirimara anụ ahụ
Enyere akụrụngwa anụ ahụ nke ọkwa 347H igwe anaghị agba nchara na tebụl na-esote.
| Njirimara | Metric | Imperial |
|---|---|---|
| Njupụta | 7.7 - 8.03 g / cm3 | 0.278 – 0.290 lb/n³ |
Ihe eji arụ ọrụ
The n'ibu Njirimara nke ọkwa 347H igwe anaghị agba nchara na-egosipụta na-esonụ tebụl.
| Njirimara | Metric | Imperial |
|---|---|---|
| Ike tensile, kacha | 480 MPa | 69600 psi |
| Ike tensile, mkpụrụ | 205 MPa | 29700 psi |
| Ike mgbawa (@750°C/1380°F, oge awa 100,000) | 38-39 MPa, | 5510-5660 psi |
| Modulu nke na-agbanwe agbanwe | 190-210 GPA | 27557 – 30458 ksi |
| Oke Poisson | 0.27 - 0.30 | 0.27 - 0.30 |
| Elongation na ezumike | 29% | 29% |
| Obi ike, Brinell | 187 | 187 |
Oge nzipu: Mar-30-2023