Stainless steel non-standard screws are suitable for materials: 200 and 300 series stainless steel (201, 202, 204, 301, 302, 303, 304, 305, 309, 310, 316, 317, 321, 347, XM7, XM15J1, etc.). Passivation of stainless steel: "Stainless steel passivation solution" can effectively protect the metal matrix, prolong the anti-rust or anti-oxidation ability of stainless steel, increase the anti-rust ability by more than 3 times, improve the salt spray resistance test time, and prolong the service life of the workpiece.

Advantages of passivation solution:

1. After passivation, it does not change any size and color of the workpiece, and effectively protects the beautiful appearance and precision of the workpiece.

2. The use cost is low, the liquid medicine can be reused, and the anti-rust grade of materials can be changed from second to stronger (201 to 304, 30 to 316...) to increase the added value of products and effectively reduce the cost of enterprises.

3. Strong corrosion resistance after passivation, 201 series materials pass more than 48 hours, 304 series materials 200~1500 hours salt spray test.

4. The operation is simple, the stainless steel passivation solution has stable performance, and it only needs to be soaked at room temperature.

5, Safe and environmentally friendly, odorless and friendly to the operating environment.

6. It does not affect the electrical conductivity of the material, does not change the composition of the material, and does not affect the bonding properties of spraying.

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