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Surface Treatment Code
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Method and Application
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Surface Condition
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No.1
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This is a product that has undergone annealing and pickling treatment after hot rolling. It is used in cold rolling materials, industrial tanks, and industrial chemical devices. |
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No.2D
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No. 2D is a non-glossy cold-rolled product that has undergone annealing and pickling treatment after cold rolling. Used in petrochemical plants, automobile parts, building materials, and pipes. |
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No.2B
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No. 2B is the type that had skin-pass (temper-rolling) performed on No.2D. It has better gloss and surface flatness compared to No.2D. It is the standard surface class with improved mechanical properties. It is applicable for almost all uses. |
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No.3
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No. 3 is polished with 100~120 mesh abrasive. It has a variety of uses including building exterior and interior, casings for various kinds of home appliances, and kitchen installations. |
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No.4
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No. 4 is polished with 150~180 mesh abrasive. Compared to No.3, this product has a finer abrasion condition. Its surface is an attractive silvery-white and is used for bathtubs, building exterior and interior,and food industry. |
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BA
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BA is bright and highly reflective surface produced by bright annealing after cold rolling. BA is used in home appliances, small-sized mirrors, kitchenware, building materials and others that require reflective properties. |
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HL
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HL is a type of surface with continuous striped pattern acquired by polishing the surface with No.4 abrasive. It is widely used for building exterior and interior. HL is also used in sashes and doors. |
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Dull
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Dull surface is matte finish produced by reducing gloss from No.2B and creating roughness on the surface. It is widely used in building exterior and interior, roofing and elevators that require reduced light reflection. |
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