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Blasting - Polishing - Passivation - for ASME Pressure Vessels - ASME Reactors - Heat Exchanagers - Columns & Towers Fabrication

Tank & Pressure Vessel Finishes

Material Finish Options for Fabricated Tanks,
Vessels, and Equipment

Tank & Pressure Vessel Finishes

Bendel's Industrial products can be fabricated with any of the following material finish options. These designations apply to stainless steel sheet, plate, pipe, and bar.  Questions?  Send us an inquiry here or contact us by phone to learn more: (+1) 866.596.5112

HR - Hot Rolled
1 - 2D_Hot Rolled Tank finish Example_
2 - 2B_mill_finish
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.

2B  - Mill Finish
2 - 2B_Mill Finish Example_
2 - 2B_mill_finish
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..

HR - Hot Rolled
3 - No 3 Semi Polished Tank Finish Example_
3 - no._3_semi_polished_finish
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.

No. 4 Finish
4 -no._4_polish - Sanitary Finish Example_
4 - no._4_sanitary_bright_finish
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

No. 6 Finish
no.7_polish tank finish example
6 - no._6_high_reflective_smooth_finish
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.

No. 7 Finish
6 - no 7 & no_8_polish - highly reflective tank finish example_
7 no._7_and_8_highly reflective_mirror_finish
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.


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