Heroes: I urgently need to know whether SUS41 screw will rust when it is tested by salt spray, what is the standard and how to deal with it if it is rusted.

SUS41 stainless steel belongs to Japanese standard martensitic stainless steel, and the implementation standard: JIS G433-215

SUS41 is a nickel-free stainless steel, which is martensitic stainless steel with good hardenability. It has high hardness, toughness, good corrosion resistance, thermal strength and cold deformation performance, and good shock absorption. Tempering at high or low temperature is required, but tempering at 37-56℃ should be avoided. It is mostly used to manufacture parts that are resistant to corrosion by atmosphere, steam, water and oxidizing acid.

the chemical composition of p>SUS41 is as follows: