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Performance characteristics of stainless steel screws
- Sep 10, 2018 -

1, stainless steel screws are iron alloy family, each chromium content is more than 12%. Chromium is an anticorrosive ingredient, so all stainless steels have strong corrosion resistance. In general, the higher the content of chromium, the better corrosion resistance.

2. The use of nickel in stainless steel screw fasteners used to rely on the use of nickel in the process of using stainless steel as the material, but in the case of rising global nickel prices, fastener prices have also been greatly affected. In order to alleviate the pressure of cost and improve the competitiveness of fasteners, the fasteners manufacturers especially look for replacement materials and produce low-nickel stainless steel fasteners.

3. Stainless steel screw fastener if the use of stainless steel as the main material, but also to understand the magnetic stainless steel itself. Stainless steel is generally considered to be non-magnetic, but in fact, austenite series materials after a certain processing technology, it is possible to appear a certain magnetic, but if this is considered magnetic is to judge the quality of stainless steel fasteners is not correct.

4. All stainless steel contains carbon and iron as well as iron. But the carbon content is very low and is carefully controlled. The reason is that carbon can combine with chromium to form carbides, making the effect of the chromium component on the formation of corrosion resistance very small. Therefore, in order to achieve the effect of anticorrosion, when the carbon content increases, the chromium content should be increased correspondingly.

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