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Hot rolled 1D No.1 surface 4mm 6mm 8mm 10mm sus ss plate 304 304L 310S 316 316L 321 stainless steel sheet
The corrosion resistance of stainless steel plate mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, manganese, etc.) and internal organizational structure, the main role is chromium element.
Chromium has high chemical stability, forming a passivation film on the surface of the steel, isolating the metal from the outside world, protecting the steel from oxidation and increasing the corrosion resistance of the steel. The corrosion resistance of the passivation film decreases when it is damaged.
It is required to withstand corrosion of various acids, such as oxalic acid, sulfuric acid-ferric sulfate, nitric acid, nitric acid-hydrofluoric acid, sulfuric acid-copper sulfate, phosphoric acid, formic acid, acetic acid and so on.
Widely used in: chemical industry, food, medicine, paper making, petroleum, atomic energy, construction, kitchenware, tableware, vehicles, household appliances, etc.
Stainless steel plate surface finish at the same time
If the surface finish is different, even if the same heating, the rough and fine surface of the oxide scale will be different. For example, in the place where the local defects have been cleaned and the place where they have not been cleaned, the condition of the oxide scale is different, which causes the uneven surface of the workpiece after pickling.
The total heat transfer coefficient of metal depends on other factors besides the thermal conductivity of the metal. In most cases, the film heat dissipation coefficient, rust and metal surface condition. Stainless steel keeps surfaces clean, so it can transfer heat better than other metals with higher thermal conductivity. Liaocheng Suntory stainless steel provides eight, stainless steel plate technical standards, stainless steel plate corrosion resistance, bending processing performance and toughness of welding parts, and welding parts of the high strength stainless steel plate and its manufacturing method. Specifically, the content of C: 0.02%, N: 0.02%, Cr: More than 11% of Si, Mn, P, S, Al, Ni with appropriate content less than 17%, And meet 12≤Cr Mo 1.5Si≤17, 1≤Ni 30(C N) 0.5(Mn Cu)≤4, Cr 0.5(Ni Cu) 3.3Mo≥16.0, 0.006≤C N≤0.030 stainless steel plate heated to 850 ~ 1250℃, Then heat treatment with cooling rate above 1℃/s is carried out. In this way, it can become a high strength stainless steel plate with martensite structure of 12% volume fraction, high strength of more than 730MPa, corrosion resistance and bending performance, and excellent toughness in the heat affected zone of welding. Using Mo, B, etc., can significantly improve the stamping performance of welding parts.
