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http://www.efunda.com/processes/surface/surface.cfm
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Surface Treatment Code Method and Application Surface Condition
No.1 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.
No.2D 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.
No.2B 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.
No.3 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.
No.4 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.
BA 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.
HL 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.
Dull 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.
現(xiàn)在不銹鋼的發(fā)展，已使不銹鋼的耐蝕性、外觀、加工性、強(qiáng)度等特性遠(yuǎn)遠(yuǎn)超過其它材料，而且，不銹鋼的許多表面處理法，可以取得豐富多彩的顏色及形狀，這為不銹鋼的發(fā)展作出很大的貢獻(xiàn)。
不銹鋼制造過程中的表面處理法以及機(jī)械研磨表面處理法
表面 特征 制造法概要 用途
NO.1 銀白色，無光澤 熱軋到規(guī)定厚度，再經(jīng)退火和除鱗的一種粗糙、無光表面 不需要有表面光澤的用途
NO.2D 銀白色 冷軋后進(jìn)行熱處理和酸洗，有時在毛面輥進(jìn)行最終的一道輕軋的一種無光表面加工 2D產(chǎn)品用于對表面要求不嚴(yán)的用途，一般用材，深沖用材
NO.2B 光澤強(qiáng)于NO.2D NO.2D處理后，經(jīng)過拋光輥進(jìn)行最終一道輕度冷軋，以取得適當(dāng)光澤。這是最常用的表面加工，該加工也可作為拋光的第一步。 一般用材
BA 光亮如鏡 無標(biāo)準(zhǔn)，但通常是光亮退火的表面加工，表面反射性很高。 建筑材料，廚房用具
NO.3 粗研磨 將NO.2D和NO.2B材，用100~200#（單位）的砥粒研磨帶，進(jìn)行研磨 建筑材料，廚房用具
NO.4 中間研磨 將NO.2D和NO.2B材，用150~180#砥粒研磨帶進(jìn)行研磨而獲得的拋光表面，這是通用的，有鏡面反射的帶有可見‘晶?！墓饬帘砻?同上
NO.240 細(xì)研磨 將NO.2D和NO.2B材，用240#砥粒研磨帶進(jìn)行研削 廚房用具
NO.320 極細(xì)研磨 將NO.2D和NO.2B材，用320#砥粒研磨帶進(jìn)行研削 同上
NO.400 光澤接近于BA
將NO.2B材，用400#拋光輪進(jìn)行研削 一般用材，建筑用材，廚房用具
HL 發(fā)紋研磨 適當(dāng)粒子大小的研磨材料進(jìn)行發(fā)紋研削（150~240#）其砥粒很多 樓房，建筑用材
NO.7 接近于鏡面研磨 用600#回轉(zhuǎn)拋光輪進(jìn)行研磨 美術(shù)用，裝飾用
NO.8 鏡面研磨 鏡子用拋光輪進(jìn)行磨