Alloy 28 ndi chitsulo chosapanga dzimbiri chosapanga dzimbiri cha austenitic chomwe chimatha kukana zotayira zosiyanasiyana.Chifukwa cha zomwe zili mu chromium ndi molybdenum, aloyiyo imapereka kukana kwa oxidizing komanso kuchepetsa zidulo ndi mchere.Kukhalapo kwa mkuwa kumawonjezera kukana kwake kwa sulfuric acid.Aloyi imagwiritsidwa ntchito mumakampani opanga mankhwala ndi petrochemical.Machubu a aloyi amagwiritsidwa ntchito kuzizira kwambiri kuti agwiritse ntchito pobowo m'zitsime za gasi wowawa kwambiri.
Aloyi | % | Ni | Cr | Fe | Mo | C | P | Mn | Si | S | Cu |
028 | Min. | 30 | 26 | bala | 3.0 | 0.6 | |||||
Max. | 34 | 28 | 4.0 | 0.03 | 0.03 | 2.5 | 1.0 | 0.03 | 1.4 |
Kuchulukana | 8.0g/cm³ |
Malo osungunuka | 1260-1320 ℃
|
Mkhalidwe | Kulimba kwamakokedwe Rm N/mm² | Zokolola mphamvu Rp 0. 2N/mm² | Elongation Monga% | Brinell kuuma HRB |
Yankho mankhwala | 500 | 214 | 40 | 80-90 |