FAQs
No.
7 finish is produced by buffing a finely ground surface. The finish is high luster with grit lines still visible on the material. The result is highly reflective, almost mirror-like. Some common applications for No. 7 finishes include column covers, ornament trim, and wall panels.
What does 3.2 surface finish mean? ›
The standard surface finish for a machined part is usually 3.2 μm Ra. This is the least expensive, and typically the roughest machining surface finish recommended for parts intended to experience vibrations, heavy loads, or amounts of stress.
What is 652 finish? ›
BHMA Finish Chart
| US Finish | Description | A |
|---|
| 20 | Statuary Bronze, Light | 649 |
| 20A | Statuary Bronze, Dark | 650 |
| 26 | Bright Chromium Plated | 651 |
| 26D | Satin Chromium Plated | 652 |
19 more rows628 SATIN ALUM, CLEAR ANODIZED.
What is a #4 finish? ›
The #4 finish is often regarded as the industry standard for satin finishes. Its appearance is relatively smooth, characterized by a grain made up of short, parallel lines.
What is a 32 finish? ›
A surface finish of 32 means that the surface has an average roughness of 32 microinches. A roughness of 32 microns is the equivalent of 1/32 inch. The closest surface finish to a 32 finish would be a 6 surface finish and smoother.
What is an F5 finish? ›
Finish F5. --This finish is required for formed concrete surfaces where plaster, stucco, or wainscoting is to be applied. Since a coarse-textured surface is needed for bond, the concrete should be cast against rough-faced (S1S2E) form boards. Form oil should not be used.
What is N7 surface finish? ›
Equivalent Ra values for Surface Finish Grade Numbers
| Roughness N ISO Grade Numbers | Roughness values Ra micrometers (µm) | Rt Roughness, microns |
|---|
| N7 | 1.6 | 8.0 |
| N6 | 0.8 | 4.0 |
| N5 | 0.4 | 2.0 |
| N4 | 0.2 | 1.2 |
8 more rowsA #4 finish is a straight-grained finish commonly thought of as 'brushed' finish, as are #3 and #6 finishes. A standard #4 finish could be about 0.8 (32) Ra, while a #4 Dairy or Sanitary finish have an roughness average between 0.3 (12) Ra and 0.4 (16) Ra.
What is a 690 finish? ›
690. Dark Statuary Bronze. 691. Light Bronze (Dull Bronze)
696 Satin Bronze Painted. Any. US4. 697 Bright Brass Plated, Clear Coated.
What is the finish code 313? ›
The three (3) common anodized finishes which are designated for aluminum storefront are: 628 (aluminum), 335 (black), and 313 (duranodic dark bronze).
What is a 689 finish? ›
Resolution: The BHMA standard 689 is an Aluminum finish, and is silver/gray in color.
What is 716 finish? ›
Brass. 716. Satin bronze plated, clear coated. Brass.
What color is 630 finish? ›
Buyer Guide: Hardware Finish Descriptions and Color Codes
| BHMA | USxx | Finish/Base Metal |
|---|
| 630 | US32D | Satin stainless steel - stainless steel |
| 666 | US3 | Bright brass plated aluminum |
| 667 | US4 | Satin brass plated aluminum |
| 668 | US10 | Satin bronze plated aluminum |
24 more rowsNo. 7 Finish is very reflective and has a mirror-like appearance. A No. 4 Finish that has been polished with a 320 or finer grit and then is buffed but existing grit lines are not removed.
What is a number 8 finish? ›
The #8 Mirror Finish is considered the industry standard for a highly reflective, mirror appearance. This is achieved by directionally buffing with abrasive compounds in several stages, followed by buffing with a rouge compound.
What is a #6 finish on stainless steel? ›
Less reflective than the #4 finish, the #6 finish is characterized by short polishing lines and a dull whiteish sheen. Its advantages include low maintenance demands, scratch resistance, and a softer, smoother appearance compared to other satin finishes.
What is a number 3 finish? ›
A #3 satin finish is achieved by polishing the metal type on a wide belt machine using coated abrasive belts. Traditionally, this results in a coarser appearance as the final polishing is done with a 100-120 grit abrasive belt.
