2B is the most widely used stainless steel surface finish. It is especially common in industrial, chemical and food processing applications such as process vessels and tanks. It is also used in some architectural applications that will not be closely examined for uniformity of finish such as downpipes and gutters.
Surface Roughness Grades:N Numbers. Here is a chart table showing how Roughness Grade Numbers convert to Ra numbers:Roughness Grade Numbers and Ra Measures Surface Roughness of Abrasive Grits and Sandpaper. One approach to Surface Finish is to use abrasives or sand the surface. This chart converts from abrasive grit to Surface Finish Finishes Integrity Stainless - An Olympic Steel CompanyA No. 2B finish is the most widely used stainless steel surface finish and is produced very similar to the No. 2D finish. Cold rolled, heat treated, pickled and pinch passed this is a bright cold rolled finish except that the final light cold rolling pass is done using polished rolls.
surface. Exterior stainless steel to be tumbled or blast finished. Interior bend radius 1/4 inch minimum. Note:Special welding and finishes available upon request. SURFACE ROUGHNESS / FINISH GRADE / GRIT Micrometers (µm) 12.50 6.30 320 1.60 0.80 0.40 0.20 0.10 0.05 Micro Inches (µin) 500 250 125 63 32 16 8 4 2 Mill Finish 2B Mill Stainless Steel - General Information - Surface Finishes Stainless steel is polished by mills in a range of forms, e.g. sheet, plate, bar & tube, but all finishes may not be available on all forms. It is important, therefore, to check that the finish is available in the form required. 1D / 1E Hot Rolled Plate. Hot rolled, softened (annealed) with the surface de-scaled.
Stainless steel has been used in architecture since the early 1900s and its range of applications continues to grow. A steel alloy, its key characteristic is the minimum 10.5% chromium (Cr) content present in the material. The chromium makes it more resistant to corrosion as it forms a coat of passivation (or oxide film) on the surface. Stainless Steel Finishing Options Metal Supermarkets Apr 13, 2016 · The development of the surface finish standard. During the late 1970s, British Steel scientists found that dull polished finishes on stainless steel showed a wide range of surface roughness. Further testing revealed that steel with high surface roughness was heavily damaged by the polishing operations, whereas steel with low surface
Finish for close tolerances. Unless otherwise agreed the surface roughness shall be Ra 1,2. 2P:Smoother and brighter than finish 2B or 2G. Free of surface defects. Finishes 2H, 2D, 2B or 2G, specular polishing:Products showing a well groomed surface appearance. Surface roughness shall be specified at the time of enquiry and order. The Stainless Steel:1K / 2K Finish on Stainless Steel Jan 01, 2012 · Firstly its important to look at the BS EN 10088-2 specification with relation to a 1K or 2K surface finish. The 1K refers to a finish applied onto Hot Rolled stainless steel plate, and the 2K refers to a finish produced on either cold rolled plate or sheet and the sheet can be either 2B or from a 2R (bright annealed) substrate.
This finish is commonly used for the medical and food industry almost exclusively used on stainless steel. Great care should be taken in removing the surface defects in the metal like pits that could allow bacteria to grow. This finish is produced by polishing with a 180 240 grit belt. (30 RA 20 RA) #6 Finish Fine grain. Types of Finishes Williams Metalfinishing Inc.This finish is commonly used for the medical and food industry almost exclusively used on stainless steel. Great care should be taken in removing the surface defects in the metal like pits that could allow bacteria to grow. This finish is produced by polishing with a 180 240 grit belt. (30 RA 20 RA) #6 Finish Fine grain.
Jan 09, 2019 · A smooth, shiny surface a mirror finish would produce an Ra measurement of around 6 to 12, while stainless-steel with a standard, brushed finish would likely produce a measurement of 20 to 30 Ra. The key differences between surface grades The most important distinction between surface grades has to do with sanitary versus unsanitary Guide to Stainless Steel Sheet Finishes Mill, Polished For example, the most commonly used finish for most stainless steel appliances is the No. 4 "Brushed" finishes. This finish provides a nice bright, brushed appearance that will withstand daily use and mask the fingerprints, scuffs, scratches, etc.