According to the microstructure characteristics of steel, they can be divided into 5 types: austenite, austenite ferrite, ferrite, martensite and precipitation hardening.
Can withstand oxalic acid, sulfuric acid iron sulfate, nitrate, nitrate acid and hydrofluoric acid, sulfuric acid copper sulfate, phosphoric acid, formic acid and acetic acid and various acid corrosion, widely used in chemical, food, medicine, papermaking, petroleum, atomic energy industry, as well as construction, kitchen utensils, cutlery, household appliances, vehicles of all kinds of parts.
In order to ensure the mechanical properties of all kinds of Stainless Steel Sheet yield strength, tensile strength, elongation and hardness meet the requirements, steel plate before delivery must be annealing, solid solution treatment, aging treatment and other heat treatment.
Stainless Steel Sheet has a smooth surface, high plasticity, toughness and mechanical strength, corrosion of acid, alkaline gas, solution and other media. It is a kind of alloy steel which is not easy to rust, but not absolutely rusty.
The corrosion resistance of stainless steel mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, etc.) and internal structure, and chromium is the main element. Chromium has a high chemical stability, can form passive film on the steel surface, so that the metal is isolated from the outside world, protect the Steel Sheet is not oxidized, increase the corrosion resistance of Steel Sheet. When the passivation film is destroyed, the corrosion resistance will decrease