Sheet&Coil
Uses according to the Condition of the Surface
Uses according to the Condition of the Surface
| Surface Processing Mark |
Processing Method and Applicable Uses | Condition of the Surface |
|---|---|---|
| No.1 |
This steel product underwent heat processing and pickling after hot rolling, and is generally used for cold-rolling materials, industrial-use tanks, chemical industrial devices, etc. |
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| No.2D |
A cold-rolled mat steel product obtained through heat processing and the pickling process after cold rolling, it is used for petrochemical plants, vehicle parts, construction materials, pipes, etc. |
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| No.2B |
A cold-rolled steel product, its gloss and evenness is better compared to those of No. 2D. A representative surface-processing method whose machinery features have been improved, it can be used for almost all purposes. |
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| No.3 | Polished using 100- to 200-mesh polishing paper, this steel product can be variably used for interior and exterior construction materials, the exterior of various electronic goods, kitchen facilities that require an elegant gloss, etc. |
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| No.4 |
Polished using 150- to 180-mesh polishing paper, this steel product’s polished condition is finer than that of No. 3. It also has an elegant silver-colored surface and can be used for baths, interior and exterior construction materials, and food facilities. |
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| HL | Continuously polished using a polishing paper with an appropriate particle size, this steel product is most widely used for interior and exterior construction materials as well as for sashes, doors, and building panels. |
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| BA |
A steel product that underwent a brilliant annealing and heat process, and temper rolling, after cold rolling, it is used for home appliances, small mirrors, kitchen apparatuses, and construction materials that require a high reflection rate. |
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| DULL |
A steel product that has been provided with an irregular surface using a roll with fine irregularities on its surface, it can be used as interior and exterior materials for rail motors and buildings where the reflection of light should be reduced. |
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Uses according to Surface Condition
| Surface Mark | Condition of the Surface and the Processing Method | Uses |
|---|---|---|
| No.1 |
This steel product underwent heat processing and pickling or a similar process after cold rolling. |
It can be used as a material for products that do not need a glossy surface, such as industrial- facilities materials, building structure materials, chemical tanks, etc. |
| HD (High-Hardness Product) |
Cold-rolled through strain hardening, this steel product features high hardness |
can thus be used for high-hardness products, such as springs, knives, railroad cars, pressure boards, and disk breaks. |
| No.2D |
This steel product underwent heat processing and pickling or a similar process after cold rolling. |
It can be used for products that do not require gloss (for general use, construction use, DDQ, the defense industry, etc.). |
| No.2B |
Cold-rolled after being made to undergo a heating process, pickling, or a similar process to give it an appropriate gloss after cold rolling, this steel product’s gloss and surface evenness are better than those of No. 2D. |
A representative cold-rolled steel product for general use, it can be used for almost all purposes. |
| No.3 | This stainless steel has been polished using No. 100~No. 200 stainless steel, in accordance with the KS L6001 standards (as regards the particle size of the abrasive). | For construction use, kitchen facilities, electronic goods, exterior decorations, etc. |
| No.4 | Polished using No. 150~No. 280 stainless steel in accordance with the KS L6001 standards (as regards the particle size of the abrasive), this steel product’s polished condition is finer than that of No. 3. | For construction use, kitchen facilities, vehicles, medical equipment, food facilities, etc. |
| No.6 (#320) |
This steel product was polished using No. 320 stainless steel, in accordance with the KS L6001 standards (as regards the particle size of the abrasive). | For construction uses, pressure boards, etc. |
| BA | Made luminous through a heating process after cold rolling, this steel product has a high reflection rate and gloss. | It can be used for vehicle parts, home appliances, kitchen facilities, decoration products, construction uses, etc. |
| HL | This product was polished to give it a continuous pattern, using an abrasive (No. 4 stainless steel) with an appropriate particle size. | For general use (e.g., as exterior and interior construction materials) |
| VIBRATION | This steel product was polished using a random-direction HL, through multishaft horizontal polishing. | For construction uses, home appliances, decoration products, etc. |
| No.8 | This polished steel product has a considerable gloss and reflection rate, having gone through a continuous polishing process using a rotating BUFF with an over-800-mesh abrasive, which removed almost all traces of polishing on its surface (dry type). | For construction uses, reflection mirrors, pressure boards, decorations, etc. |
| MR | This polished steel product has a considerable gloss and reflection rate, having gone through a continuous polishing process using a rotating BUFF with an over-800-mesh abrasive, which removed almost all traces of polishing on its surface (dry type). | For construction uses, reflection mirrors, pressure boards, decorations, etc. |
| SM | This polished steel product has the highest reflection rate as it was polished using a rotating FELT with an over-1,500-mesh abrasive, which removed almost all traces of polishing on its surface (wet type). | For construction uses, reflection mirrors, pressure boards, decorations, etc. |
| EM | This product was cold-rolled using an embossing roll that engraved a pattern on it through etching or spark erosion. | For construction uses, interior materials of elevators, pressure boards, kitchen facilities, electronic parts, and decorations |
| ET | This cold-rolled steel product was provided with a solid pattern using the differentiated corrosion of acid after a pattern was printed on its surface using a screen. | For construction uses, interior materials of elevators, pressure boards, kitchen facilities, electronic parts, and decorations |
| COLOR | The various colors of this cold-rolled product were made chromogenic by controlling the passivated oxides layer formed on its surface using the reflection and interference actions of light. | For construction uses, high-standard exterior uses, kitchen facilities, etc. |
