20 1 manganese content is high, and the surface is bright (dark black). Because of its relatively low cost, this kind of stainless steel is the most widely used stainless steel material in the low-end decoration market, but compared with 304 and 3 16, these two kinds of stainless steel have higher manganese content and are easy to rust. So it is usually used in the non-hardcover area of high-end projects.
The scientific name of 304 stainless steel is "Cr-Ni stainless steel". It is a national certified food-grade stainless steel, which is widely used in industrial production, building decoration, catering, medical treatment and other industries. This is also a stainless steel model that designers are familiar with. Good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good hot workability such as stamping and bending, without heat treatment and hardening (non-magnetic, service temperature-196℃-800℃).
3 16 Stainless Steel: "Anti-marine corrosion and corrosive industrial atmosphere". The main applications are pulp and paper equipment, food industry, surgical equipment, dyeing equipment, film cleaning equipment, pipelines and heat exchangers for external materials of buildings in coastal areas. The price of stainless steel is directly related to corrosion resistance, so the price of 3 16 stainless steel is naturally more expensive than other commonly used decorative stainless steels.