The POSCO Quality

Stainless Steel

Stainless steel is a special steel featuring a splendid surface and good resistance to rust. As a high value-added product, stainless steel can be used for diverse areas without requiring any additional treatment.

Surface Treatment

* Compare the degree of reflection of objects with surface treatment.

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Finish Code Processing Method and Application Surface Condition
No.1 This finish is created through hot rolling, heat treatment and pickling. It is ideal for materials to be cold-rolled, industrial tanks and chemical facilities.
No.2D This finish is not reflective and is made through cold rolling, heat treatment and pickling. Its typical uses include petrochemical plants, auto parts, construction materials and pipes.
No.2B This finish is made by applying a light cold rolling pass to No.2D. It is more reflective and less rough and provides better mechanical properties than No.2D. It is commonly used for almost all applications.
No.3 This finish is made through polishing with 100-120 grit abrasives. Major applications are those requiring gorgeous reflective appearances, such as architectural materials, electronics and kitchen appliances.
No.4 This finish is made through polishing with 150-180 grit abrasives. High grit numbers create finer polishing lines and more reflective finishes than No.3. This finish is widely used for bathtubs, architectural materials and food processing.
HL Featuring a series of patterns, this finish is made through polishing with moderate grit abrasives. Its common uses include sashes, doors or other panels of buildings.
BA This finish is made through cold rolling, bright annealing, heat treatment and then a light cold rolling pass. It is widely used for applications where a highly reflective surface is desired, including home appliances, small mirrors, kitchen appliances and architectural materials.
DULL A dull surface is a matte finish produced by grinding with a fine rugged roll. Widely used for the exterior and interior of trains and buildings that require reduced light reflection.