Stainless Steel Polishing:
These polished surface finishes are supplied within the broad definitions contained in EN10088-2.
Stainless Steel Sheet finishes:
Coarse Ground; Dull Buffed or Dull Polished; Satin Brushed/Scotchbrite finishes; Bright Polished.
Fine Grit finishes:
A range of fine Silicon finishes can be supplied. A protective coating is applied to all finishes.
Stainless Steel Coil finishes:
Dull Buffed or Dull Polished; Satin Brushed/Scotchbrite finishes; Bright Polished, Mirror Polished (mill order) please contact us for more details.
Finishes available on section and extrusion:
Satin Brushed/Scotchbrite finishes; Bright Polished.
Stainless International can supply also ‘circle’ polishes and ‘coloured’ surfaces on Stainless Steel Sheets.
‘Brushing’ sheets generally provides a smooth fine and clean finish, but it is important to understand that a stainless surface once damaged cannot be repaired and that a good-looking surface which has been brushed after polishing with an aggressive Aluminium Oxide belt, will remain damaged and therefore prone to more rapid surface staining in certain environments.
At Stainless International, we have the deep knowledge of the polishing process and sources of supply, to ensure that sheets are supplied to the highest standards & consistency that you need for your application.
Finishing Process Route: Cold rolled, heat treated, pickled, and skin passed (lightly rolled)
Typical (Ra) Micron: Approximately 0.1-0.3
Notes: The most widely used mill finish for stainless steel. It has a smooth, moderately reflective grey surface and excellent corrosion resistance. The 2B finish is suitable for general-purpose applications and forms a good base for polishing or further surface treatment.
Finishing Process Route: Cold rolled and bright annealed in a controlled atmosphere furnace (without pickling)
Typical (Ra) Micron: Approximately 0.05 or better
Notes: A highly reflective, bright mirror-like finish produced without mechanical polishing. The BA finish provides an attractive appearance, good reflectivity, and excellent cleanability, making it ideal for decorative, architectural, and domestic applications where appearance is important.
Finishing Process Route: Ground
Typical (Ra) micron: – Greater than 1.0
Notes: A unidirectional texture, not very reflective. Covers the old 3A finish
Finishing Process Route: Brushed or dull polished
Typical (Ra) micron: 0.2-1.0
Notes: Smoother than “G” with a unidirectional texture, not very reflective. Typically, 120 – 180 grit, 3B or 4 finish in old terms, generally produced with an Aluminium Oxide belt. The surface roughness will depend on the grit of the belt used and its wear.
Finishing Process Route: Satin polished
Typical (Ra) micron: less than 0.5
Notes: Smoothest of the special non-reflective finishes with corrosion resistance suitable for most external applications and more reflective. Typically, a 240 – 320 grit achieved by using a Silicon polishing belt, with or without lubricants.
Finishing Process Route: Bright polished
Typical (Ra) micron: less than 0.1
Notes: Mechanically polished reflective finish. Can be a mirror finish, depending on the quality of the material substrate. Test samples recommended. Usually produced with oscillating mops.
Finishing Process Route: Cold rolled, heat treated, skin passed on roughened rolls
Notes: Uniform non-reflective matt surface, can be based on either 2B or 2R mill finishes
Finishing Process Route: Patterned
Notes: Applied to ex-mill finishes. One side patterned only.
Finishing Process Route: Coloured
Notes: Applied to flat (2R (BA), 2P or 2K type fishes) in a range of colours. The colours are created by chemical treatment to vary the thickness of the chrome oxide film from .02 microns to .36 microns. Light interference through the film can produce an intense range of colours, depending on quality of underlying surface, in a range of Bronze, gold, red, purple, blue, green
