ʻO Alloy 28 kahi mea kila austenitic i hoʻohuihui nui ʻia e hāʻawi ana i ke kūʻē ʻana i nā ʻano media corrosive.Ma muli o kāna mau mea i loko o ka chromium a me ka molybdenum, hāʻawi ka alloy i ke kū'ē i ka oxidizing a me ka hōʻemi ʻana i nā waikawa a me nā paʻakai.Hoʻonui ka noho ʻana o ke keleawe i kona kūʻē ʻana i ka sulfuric acid.Hoʻohana ʻia ka alloy i ka ʻoihana hana kemika a me ka petrochemical.Hoʻohana ʻia nā paipu huila a hiki i nā pae ikaika kiʻekiʻe no ka lawelawe ʻana i lalo i nā pūnāwai ʻawaʻawa hohonu.
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 |
ʻO ka mānoanoa | 8.0 g/cm³ |
Lae hehee | 1260-1320 ℃
|
Kūlana | Ka ikaika tensile Rm N/mm² | Hua ikaika Rp 0. 2N/mm² | ʻO ka lōʻihi E like me % | ʻO Brinell paʻakikī HRB |
Lapaʻau hoʻonā | 500 | 214 | 40 | 80-90 |