AISI ASTM SS SUS BA 2B HL 8K No.1 Mirror Stainless Steel Sheet 202 430 304l 310s 304

Main processing method

(1) Polishing a Cloth paper polishing: sticking with an adhesive, making a jointless polishing material and rotating it, and polishing the steel strip and steel plate is called NO.3 and NO.4 processing.
b Polishing process: stack the disc-shaped cloth with uniform abrasive with adhesive agent to make it into a series shape, and make it rotate for polishing process. This polishing is mainly to give luster to the product. Due to the low abrasiveness, the rough surface should be fully removed before machining. c Hairline (HL) processing: processing with a fixed cloth paper polishing belt or a low-speed pass through the strip. This method mostly uses building materials. In this state, since it is easy to be rusted by small salt particles outside the house, it is sometimes coated. (2) Rolled (reinforced or embossed) surface: Because it is not annealed, it is sometimes only used in the state of degreasing cold rolling, mainly used as springs and high-strength materials, and the embossing of rollers with unevenness is also the same kind. Example: (SUS301) bomb
Hardened material for spring 1/2H (1/2 hardening) 310HV or more 3/4H (3/4 hardening) 370HV or more H (full hardening) 430HV or EH (special hardening) 490HV or more The pre-painting process must be done during the first layer processing, followed by the primer coating. The surface coating uses silicon-modified acrylic paint, silicon-denatured polyester paint, fluorine paint, and silicon paint. (4) Electroplating: Stainless steel itself has excellent corrosion resistance, so electroplating is rarely used to improve corrosion resistance, but sometimes electroplating has to be used for decoration. When electroplating stainless steel, the passive film is first removed and its regeneration must be prevented.

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