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304 stainless steel plate corrosion resistance
304 stainless steel plate corrosion resistance

The corrosion resistance of 304 stainless steel plate mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, etc.) and internal structure. The main role is chromium. Chromium has high chemical stability and energy. A passivation film is formed on the steel surface to isolate the metal from the outside world, protect the steel plate from oxidation, and increase the corrosion resistance of the steel plate. After the passivation film is destroyed, the corrosion resistance decreases.

In automatic flaw detection, the lift-off effect of the 310s304 stainless steel tube and the influence of the uninterrupted coupling layer on the flaw detection are often the most difficult problems. The descaling and rough rolling of the 304 stainless steel tube should be closed in the last pass. On the one hand, the final The thin slab thickness in one pass and the large temperature drop result in high rolling unit rolling force; on the other hand, the closed descaling water is conducive to the formation of oxide film on the surface of the strip, which is effective in the subsequent finishing rolling.

304 stainless steel plate resistance to stress corrosion cracking
The ability to resist stress corrosion cracking, especially in the environment containing chloride ions, even the duplex alloy 304 stainless steel tube with the lowest alloy content has a higher resistance to stress corrosion cracking than austenitic 304 stainless steel plate. Stress corrosion is The common austenitic 304 stainless steel plate is difficult to solve the raised problem. Therefore, when cross-rolling the 310s304 stainless steel tube, it is necessary to pay attention to the horizontal deformation. The smaller the ellipticity, the minimum heating temperature of the tube blank is 1000~1060 ℃.

Classification of stainless steel plate thickness:
(1) Thin plate (0.2mm-4mm) (2) Medium plate (4mm-20mm) (3) Thick plate (20mm-60mm) (4) Extra thick plate (60-115mm)

Kuanyu Stainless Steel Co., Ltd.
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  • jack 10:12 AM, Today
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