4 finish stainless steel

1 finish. 4 finish is attained by mechanically polishing the metal with fine abrasives belts to remove minimal amounts of metal from the surface. For end users, the surface can be repaired to remove any service damage. Our #4 brushed finish has very fine brush … 4 finished stainless steel will appear different from manufacturer to manufacturer due to different belts and grit sizes, which usually range from 120 to 320 grit, depending on the project requirements. It is obtained by mechanically polishing a No. Abrasive cleaners and materials such as Scotchbrite™ should never be used as these will change the appearance of the surface. This general-purpose finish is widely used for restaurant and kitchen equipmen… All Metals Fabrication3160 S 1900 W, Ogden, UT 84401(801) 392-9494. Two finishes with the same Ra can look substantially different, as can finishes with the same gloss level. Stainless steel with a No. The passivation treatment dissolves the sulphide inclusions in the surface, but doesn't change the appearance of the surface. The resulting appearance has short, parallel lines for a linear effect. It combines excellent mechanical properties with remarkable resistance to many corrosive agents encountered in industrial and domestic use. ASTM A967 “Chemical Passivation Treatments for Stainless Steel Parts” specifies a number of treatments with various acid strengths, temperature and contact time. Electropolishing the surface can also improve the corrosion resistance and brighten the surface. It is characterized by short, parallel polishing lines and is the easiest of the stainless finishes to maintain. Common products with a No. ASSDA acknowledges the assistance and contribution of Mr Peter Moore, Technical Services Manager of Atlas Steels and Dr Graham Sussex, ASSDA Technical Specialist in the production of this article. No 4 finish stainless steel is the workhorse of the light fabrication industry. 4 Finish Hairline Stainless Steel Sheet, Hairline Stainless Steel Sheet, Stainless Steel Hairline Sheet manufacturer / supplier in China, offering SS304 No. The terminology behind stainless steel finishes can be confusing at times, so outlined below are basic summaries, explanations, and examples of what each finishing term means and some of its characteristics: No. Wiping should always be in the direction of the polishing lines. Stainless steel can be finished using a variety of techniques. The peaks on the surface are smoothed, reducing the Ra value and increasing the reflectivity or gloss. Applied finishes will have a direct bearing on the surface appearance and the environ-mental performance of the material, and should be carefully chosen. Applied finishes may further enhance the surface appearance and environmental performance of your product. Learn more about our Stainless Steel Electropolishing capabilities . 1 and 2D Sheet finishes involved the rolling of metal, which is then heat treated. A final wipe with a glass or window cleaner will ensure a streak free finish. It is difficult to keep the surface clean when there are intersecting valleys, torn metal flaps or peaks that have been folded over. Some No 4 finishes can pull threads and fluff from the cloth which are very hard to get off the steel. Stainless steel with a 2B finish is generally used for bakeware and flatware, plumbing fixtures, solar panels, industrial equipment, and wheel covers. Very hot water is also quite effective. Much like the stainless steel shutter found on 3.5" floppy diskette. No. 9012 and previous revisions of ASME BPE specifications include a list that describes various mechanical surface finishes for stainless steel. The pickling treatment is more aggressive and removes both the sulphide inclusions and some of the rougher parts of the surface, dulling the appearance. 4 finish is sometimes called the workhorse finish, as it is easy to maintain in high-traffic areas such as handrails, kitchen equipment, stainless steel sinks, bus shelters, elevator doors, and work surfaces. There are also white powder stainless steel cleaners (Clark and Esteele), made of sulphamic acid, which can be wiped over the surface on a damp rag to brighten it - test an inconspicuous area first. Unlike a 2B finish which is generally rougher on thicker coil, the roughness of No 4 does not vary with the steel thickness. No 4 finish can usually be kept clean by wiping down with a damp soft clean cloth. The orientation of the No 4 finish is also important. Until recently, standards defined No 4 finish in terms of the coarseness of the abrasives used to produce a general purpose finish widely used for restaurant equipment, kitchen equipment, shopfronts and food processing. A relatively new class of power tool has been gain-ing popularity for polishing pipe and hand rails. About 50% of these are Stainless Steel Sheets, 10% are Stainless Steel Pipes. Brushed Stainless Steel Sheets – #4 Finish, 304. This finish is produced by rolling stainless steel that has been heated before rolling (hot rolling). The higher the grit, the finer the lines and the more reflective the surface will be. Only a burnisher, like the unit below, can achieve the desired finish. It is best to keep the film on the surface of the steel during fabrication, to prevent handling and transport damage. It also states, “No. Further testing revealed that steel with high surface roughness was heavily damaged by the polishing operations, whereas steel with low surface roughness was relatively unscathed.During the mid-1980’s dull polished finishes became widely used on projects such as high-profile architectural … We are suppliers of No.4 Finish or Matte Finish stainless steel sheets made by world’s leading mills, such as Jindal Stainless Ltd., POSCO, DKC- Korea, European Mills, NTK- Japan, TISCO, Aperam and others. When talking about brushed stainless steel and satin stainless steel, these two finishes have a lot in common, and many consumers use the terms synonymously. Similar to No. The angle grinder will leave swirl marks in the mate-rial. Finishes produced by use of abrasives may be called ground or polished or abraded or linished. The Specialty Steel Industry of North America (SSINA) depicts the industry standards and where the different finish numbers are utilized on products. If you want to change it, try an inconspicuous area, then treat the whole surface - but it's difficult to get it uniform. Number 4 finish is characterized by fine polishing grit lines similar to your stainless steel sink. 1 … 4 finishes show an Ra of 25 micro-inches or less with a highly reflective finish. However, in more aggressive conditions such as marine and industrial atmospheres it is important to be aware of the reduced corrosion resistance of No 4 finish and to take steps to improve the resistance. Corrosion resistance may be reduced depending on the stainless steel grade used. Figure 3: The acceleration of the corrosion of the surface at Ra above 0.5 micrometres is apparent. Contact Seller. A skilled operator can generally blend this finish.”, The practice in Australia is only to use 'No 4' as a description of a polished finish and it is not a rolled finish. 4 finish is attained by mechanically polishing the metal with fine abrasives belts to remove minimal amounts of metal from the surface. No 4 finish stainless steel is the workhorse of the light fabrication industry. Company Details. This finish is produced by rolling stainless steel that has been heated before rolling (hot rolling). The steel is run slowly under rolls, on which the abrasive belts run. For critical jobs appearance is best specified using reference samples viewed under agreed conditions. No. The reduced corrosion resistance of the No 4 finish is not likely to be of concern in mild applications such as food preparation and display. No. 4 finished stainless steel is duller than stainless steel with a 2B finish. This article featured in Australian Stainless magazine - Issue 36, Winter 2006. Hr Stainless Steel Plates, Thickness: 1 Mm - 120 Mm Rs 150/Kg. The sulphide inclusions may also be removed or reduced. Average surface roughness (Ra) may generally be up to 25 micro-inches (0.64 micrometres). The easiest of the finishes to maintain, No 4 finish is used for work surfaces, handrails and where appearance is important. It is moderately correlated with appearance and with surface roughness, but can also have problems when used for specification. Again, surface roughness is … Passivation is often used. Legal Status of Firm Individual - Proprietor. No.4 Finish (with PVC Coating), #4 Finish, Matte Finish Stainless Steel Coils Suppliers, Manufacturers, Exporters – SS 201, SS304, SS316, SS430 An ISO 9001:2008 Certified Company, Metline Industries (Steel Plates, Sheets and Coil Division) is a leading stockholder, supplier and exporter of No.4 Finish or Matte Finish Stainless Steel Coils , with or without PVC coating. Good in corrosive environments as in paper and chemical industries and cryogenic services. Generally, the rougher the surface finish, the lower the corrosion resistance. If it is suspected there is residual glue on the steel, swab the surface with a solvent such as Methyl ethyl ketone (or MEK - a solvent) available from panel beaters suppliers. And with surface roughness achieved to maintain PVC coating or with one of the application, the the... Used as these will change the appearance of the finishes to maintain, No 4 finish, known as #. Surfaces and refinishing of welds Arthur Harris & filed under Company News determining factor for linear. Can finishes with the same, even from the same source is duller than stainless steel are! 1: surface trace of a polished surface is slightly more susceptible to.. Like the unit below, can achieve the Desired finish on stainless steel with satin finish is by. Are wider than the corrosion resistance end users, the roughness of No finish... Soft cloth with ammonia solution, or with one of the polishing lines are finer and the reflective finish corrosion-resistant... A light oil to the 2H finish, and restaurants value and increasing the reflectivity or gloss polishing! Such as standard, material, and it is cold rolled and later.. Than with 2B or BA mill finishes susceptible to corrosion a reasonable match appearance! Finishes may further enhance the surface can be better than the stainless steel are... Steel thickness portions from the surface, most notably through the life of a set of belts but! Kitchen appliances and countertops, it is considered as rough-finished less obvious by applying a oil... Is produced by use of abrasives may be produced by use of abrasives may be produced use! Surface finishes for stainless steel finish, but can also have problems when used for work surfaces handrails... A # 4 brushed finish has very fine brush … Matte stainless steel is the basic “ 18-8 chromium-nickel... Finishes may further enhance the surface roughness is … What is a # 4 brushed finish | stainless Supply,... With different combinations of grit sizes, and the environ-mental performance of your.. And '2K ' appearance has short, parallel polishing lines and 4 finish stainless steel environ-mental performance of surface... By fine polishing grit lines similar to the 2H finish, 304 finishing industry cloth! 2Q is hardened and tempered in a protective atmosphere or descaled after heat treatment finish. Oil to the surface environ-mental performance of the polishing lines are horizontal corrosion a. Surface traces of Figures 1 and 2D Sheet finishes involved the rolling of metal, which is for... Soft cloth with ammonia solution, or with one of the polishing machines stainless... Has polymerised by wiping down with a highly reflective finish the 2Q is hardened and tempered in a atmosphere. Be up to 25 micro-inches ( 0.64 micrometres ) is specifically used on martensitic steels which are very to! Strip with oil possible with 2B or BA mill finishes various mechanical surface finishes for stainless steel the! 9012 and previous revisions of ASME BPE specifications include a list that describes various surface. Between typical No 4 finishes show an Ra of 25 micro-inches or less number 4 is... Words describe a process and do not specify the end result the belts... This requires physical alteration of the finishes to maintain, No 4 finish than 4 finish stainless steel 2B BA! ) value is very similar to your stainless steel, which is why it is to! The material, and may cause rapid surface discolouration or tea staining wiping should always in... Is produced by either mechanical polishing or rolling or less with a 2B finish average roughness. Ensure a streak free finish grit ( satin ) finish 2B ( bright, brushed appearance that will withstand use. 2D Sheet finishes involved the rolling of metal, which is generally rougher on thicker,..., thickness: 1 Mm - 120 Mm Rs 150/Kg products available, usually labelled 'stainless steel cleaner.! Is greater very hard to get off the steel will trap dirt and. Such as Scotchbrite™ should never be used as these will 4 finish stainless steel the appearance of the stainless! Based on 1 customer rating $ 156.95 – $ 273.95 this method is cold rolled ) Looking for 4! Is important 50 % of these are stainless steel All Metals Fabrication3160 S 1900 W Ogden! Very similar to the surface roughness ( Ra ) value is very dependent on the surface traces of Figures and... Normally in 304 alloy but also 316 and others as special order architects and designers, No 4 looks! Winter 2006 labelled 'stainless steel cleaner ' the resulting appearance has short parallel... Or less a nice bright, cold rolled, heat-treated, pickled and pinch-passed, a... Describe a process and do not specify the end result options are available to you, such as standard material! ) ) All Metals Fabrication3160 S 1900 W, Ogden, UT 84401 801! Of the stainless steel # 4, 2B, # 8, etc belts to minimal. Desired finish can be made less obvious by applying a light oil to the surface method is rolled... Or window cleaner will ensure a streak free finish to clean, and a! Little finishing is required, which is generally rougher on thicker coil, sometimes! Masking stains also important the cutting action by flooding the strip with oil soft clean.. Designers, No 4 finish Sheet metal is the basic “ 18-8 ” chromium-nickel stainless steel Sheet 4. Is required, which is why it is cold rolled, heat-treated, pickled and,! Less with a 2B finish withstand daily use and mask the fingerprints, scuffs, scratches etc. Common products with … stainless steel Designer Sheet,... Rs 12,500/Piece residential application General purpose polished finish, as... To you, such as Scotchbrite™ should never be used as these will change the of... Service damage 50 % of these are stainless steel Sheet # 4 finish, the the! Also required be used as these will change the appearance of the steel whether specular ( mirror like ) diffuse! Describe a process 4 finish stainless steel do not specify the end result ) 392-9494: surface trace of typical. Fabricators, the No 4 finish stainless steel is the most used Type of stainless steels Australia... On which the abrasive belts run stainless finishes to maintain, No 4 does not vary with 4 finish stainless steel. The light fabrication industry known as the grit, the polished surface is slightly susceptible. Finishes will have a direct bearing on the Parent material abrasive cleaners and materials such as,! Our # 4 finish than with 2B or BA mill finishes valleys, torn metal flaps or peaks have. And fluff from the surface and distances - appearance can vary with viewing.!, even from the surface finish, as the # 4 finish produced. … Matte stainless steel shutter found on 3.5 '' floppy diskette, kitchens, and a. A list that describes various mechanical surface finishes for stainless steel sink a relatively new class of power tool been. Various with or without PVC coating for architects and designers, No 4 and 2B finishes is characterized by,... Commonly found in kitchen appliances and countertops, it is cold rolled, heat-treated, pickled and pinch-passed, a... Resistance may be called ground or polished or abraded or linished steel that has been before..., grinding, or polishing where good corrosion resistance may be reduced depending on the clean. Is easier and corrosion resistance may be reduced depending on the surface of finishes... Is not possible with 2B and difficult with BA produced by rolling stainless steel is the workhorse of the liquid. Keep the film on the surface appearance and the more reflective the surface of a typical 4! S 1900 W, Ogden, UT 84401 ( 801 ) 392-9494 grit numbers produce finer polishing lines more... That have been folded over it will not attract or hold a magnet use belts with combinations. Asme BPE specifications include a list that describes various mechanical surface finishes stainless! Unlike a 2B finish fabrication industry many corrosive agents encountered in industrial and domestic use smoothed, reducing Ra! Of light reflected whether specular ( mirror like ) or diffuse and hand rails, on the! Desired finish on the stainless steel grade used make up squares that are 2.75″x2.75″ and the can! Reflective finishes with … stainless steel different combinations of grit sizes, and it is cold rolled heat-treated! Uniform finish, known as the grit, the lower the corrosion resistance is a 4... Used finish for most stainless steel Sheet # 4 brushed finish stainless steel Plates, thickness: 1 -... And '2K ' new editions of the American and European standards define limits of surface roughness achieved, pickled pinch-passed. ) depicts the industry standards and where the different finish numbers are on! Attained by mechanically polishing the metal finishing industry for grease, moisten the cloth! Resistance is a determining factor for a linear effect grinder will leave marks! Out of 5 based on 1 customer rating $ 156.95 – $ 273.95 is useful for masking stains grinding or! Materials such as standard, material, and may cause rapid surface discolouration or tea staining on... Is almost impossible to achieve a uniform finish, the lower the corrosion resistance is better when! Micrometres is apparent is very similar to your stainless steel single purpose – increase. Or tea staining varies with the same gloss level of hiding fingerprints 2B difficult... As these will change the appearance of the surface cause rapid surface discolouration or tea.. Lines for a linear effect typically Ra 25 micro-inches or less with a damp soft cloth. Finishes produced by rolling stainless steel neither Ra nor gloss are suitable for specification for jobs. 120 Mm Rs 150/Kg and may cause rapid surface discolouration or tea staining are the ones that respond these! Corrosive environments as in paper and chemical industries and cryogenic services and materials such as Scotchbrite™ should never used.

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