1. Content of alloying elements
Generally speaking, the content of chromium in 10.5% steel is not easy to rust.
The higher the content of chromium and nickel, the better the corrosion resistance, such as 304 material nickel content in 8-10%, chromium content up to 18-20%, such stainless steel in general will not rust.
2. The smelting process of the manufacturer will also affect the corrosion resistance of stainless steel
The smelting technology is good, the equipment is advanced, the craft is advanced big stainless steel factory whether in the alloy element control, the impurity removal, the billet cooling temperature control can be guaranteed, therefore the product quality is stable and reliable, the inner quality is good, not easy to rust.
On the contrary, some small steel plant equipment backward, backward technology, smelting process, impurities can not be removed, the production of products will inevitably rust.
3. External environment, dry and ventilated environment is not easy to rust
And the air humidity is big, continuously cloudy and rainy weather, or the environment area that contains ph in the air is big is easy to rust.
304 stainless steel, if the surrounding environment is too bad will rust.
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Post time: Dec-16-2019