Alloy 28 waa bir aan lahayn austenitic austenitic ah oo aad u alloyed oo bixisa iska caabin noocyo kala duwan oo warbaahin ah.Marka loo eego waxa ku jira chromium iyo molybdenum, daawadu waxay bixisaa iska caabin labada oksidizing iyo yaraynta asiidhka iyo cusbada.Joogitaanka naxaasta waxay kordhisaa caabbinta sulfuric acid.Daawaha waxa loo isticmaalaa warshadaynta kiimikaad iyo kiimikaad batroolka.Tuubooyinka daawaha waa qabow laga soo shaqeeyay ilaa heerar sare oo xoog ah oo loogu talagalay adeegga godka hoose ee ceelasha gaaska dhanaan ee dhexdhexaadka ah
Alloy | % | Ni | Cr | Fe | Mo | C | P | Mn | Si | S | Cu |
028 | Min. | 30 | 26 | bal | 3.0 | 0.6 | |||||
Max. | 34 | 28 | 4.0 | 0.03 | 0.03 | 2.5 | 1.0 | 0.03 | 1.4 |
Cufnaanta | 8.0 g/cm³ |
barta dhalaalaysa | 1260-1320 ℃
|
Xaalada | Xoog xajin Rm N/mm² | Xoog soo saar Rp 0. 2N/mm² | Dheeraynta Sida% | adkaanta brinell HRB |
Daaweynta xalalka | 500 | 214 | 40 | 80-90 |