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HR - Hot Rolled
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Hot Rolled (HR) Grit: n/a RA Range: n/a |
| Rough, dull surface appearance. Most scale removed by pickling. Applies to all steel plate 3/16" and thicker. Specify where surface finish is a low priority. | |
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2B - Mill Finish
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Mill Finish (2B) Grit: n/a RA Range: n/a |
| A smooth, bright, moderately reflective finish suitable for "as is" specifications or as a preliminary finish for further polishing. Available only in 1/4" or thinner sheet material.. | |
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No. 3 Finish
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No. 3 Grit: 120 RA Range: 40-50 |
| A semi-polished surface achieved by finishing with the equivalent of a 120-grit abrasive. This finish has a pronounced grit line. Typically used with a No. 3 weld finish. |
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No. 4 Finish
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No. 4 Grit: 100 RA Range: 15-30 |
| A sanitary, general purpose, bright finish with visible grain which prevents mirrorlike reflectivity. Use where sanitary surfaces are required. Meets current 3A standards. Typically used with a No. 4 weld finish. | |
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No. 6 Finish
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No. 6 Grit: 240 RA Range: 10-15 |
| Polished finish achieved with the equivalent of a 240-grit abrasive. Finer grit lines and higher reflectivity than No. 4 finish. Improved product release, cleanability, and appearance. Typically used with a No. 6 weld finish. | |
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No. 7 Finish
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No. 7 Grit: 320 RA Range: <10 |
| Highly reflective surface obtained with the equivalent of a 320-grit abrasive. Minimal grit lines. Used where product-contact surfaces are critical. Typically used with a No. 7 weld finish. | |
