GB/T20878-2007 da belgilangan zanglamaydigan po'lat zanglamaydigan po'lat va korroziyaga chidamliligi bilan tavsiflangan po'latdir, tarkibida xrom kamida 10,5 foiz va uglerod miqdori ko'pi bilan 1,2 foizni tashkil qiladi. Zanglamaydigan po'lat - zanglamaydigan va kislotaga chidamli po'latning qisqartmasi. Havo, bug 'va suv kabi zaif korroziy muhitga chidamli yoki zanglamaydigan xususiyatga ega bo'lgan po'lat zanglamaydigan po'lat deb ataladi; Kimyoviy korroziyaga chidamli po'lat (kislota, ishqor, tuz va boshqa kimyoviy ishlov berish) kislotaga chidamli po'latdir.
Due to the difference in chemical composition, their corrosion resistance is different. Ordinary stainless steel is generally not resistant to chemical medium corrosion, while acid resistant steel is generally stainless. The term "stainless steel" not only refers to one kind of stainless steel, but also refers to more than 100 kinds of industrial stainless steels. Each type of stainless steel developed has good performance in its specific application field. The key to success is to understand the purpose first, and then determine the correct steel grade. There are usually only six types of steel related to the application field of building construction. They all contain 17~22 percent chromium, and better steel grades also contain nickel. The addition of molybdenum can further improve the atmospheric corrosion, especially the corrosion resistance to the atmosphere containing chloride.
Umuman olganda, zanglamaydigan po'latning qattiqligi alyuminiy qotishmasidan yuqori va zanglamaydigan po'latning narxi alyuminiy qotishmasidan yuqori.
