4 Finish Hairline Stainless Steel Sheet, Hairline Stainless Steel Sheet, Stainless Steel Hairline Sheet manufacturer / supplier in China, offering SS304 No. 4 GUIDE TO STAINLESS STEEL FINISHES Mechanically Polished and Brushed Finishes The number of additional finishing processes can be minimised by selecting, as the starting point, the closest mill finish to the desired end result. 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. Typically, as the grit number increases, polishing lines are finer and the reflective finish is greater. Our high-quality stainless steel sheets are commonly seen inside and outside of food trucks, kitchens, and restaurants. ( Click here for thickness chart) STEP 2: Standard Or Cut To Size. Good in corrosive environments as in paper and chemical industries and cryogenic services. When the lines on the surface are vertical, drainage is easier and corrosion resistance is better than when the lines are horizontal. Product Image. No. The surface scratches or grooves produced by abrasion expose sulphide inclusions, which are always present in all steels, and can act as a catalyst for corrosion. STAINLESS STEEL NO.4 FINISH IS ALSO CALLED MATT FINISH WHICH COME IN THICKNESS:0.8M,1MM, 1.2MM,1.5MM,2.MM SIZE:-8FT X 4FT.10FT X 4 FT . This makes it a good choice for appliances, cabinets accessories and other high traffic home parts. Year of Establishment 2006. Passivation is often used. It is obtained by mechanically polishing a No. 1 finish. A reasonable match in appearance can be achieved more readily with No 4 finish than with 2B or BA mill finishes. 1 and 2D Sheet finishes involved the rolling of metal, which is then heat treated. By using grade 316 with a No 4 finish in aggressive environments, the corrosion resistance is negated and may be less than on 304 with a 2B or BA finish. These should be large enough that they can be viewed from a variety of angles and distances - appearance can vary with viewing angle. 3 finish with gradually finer abrasives. The difference is that the 2Q is hardened and tempered in a protective atmosphere or descaled after heat treatment. : 3 Different types of stainless steel include the elements carbon (from 0.03% to greater than 1.00%), nitrogen, aluminium, silicon, sulfur, titanium, nickel, copper, selenium, niobium, and … Figure 3 shows the results of electrochemical tests for corrosion of a polished surface. Starting with the base material prefinished … No 4 finish stainless steel is the workhorse of the light fabrication industry. The higher the grit, the finer the lines and the more reflective the surface will be. Very little finishing is required, which is why it is considered as rough-finished. This finish provides a nice bright, brushed appearance that will withstand daily use and mask the fingerprints, scuffs, scratches, etc. Stainless Steel Finish Capabilities? Two finishes with the same Ra can look substantially different, as can finishes with the same gloss level. Finishes produced by use of abrasives may be called ground or polished or abraded or linished. Generally, the rougher the surface finish, the lower the corrosion resistance. 304/304L is used almost exclusively for parts requiring machining, welding, grinding, or polishing where good corrosion resistance is also required. The polishing machines at stainless steel mills lubricate the cutting action by flooding the strip with oil. Wiping should always be in the direction of the polishing lines. The diamond or quilted pattern make up squares that are 2.75″x2.75″ and the material itself is corrosion-resistant and sanitary. 4 finishes show an Ra of 25 micro-inches or less with a highly reflective finish. A brushed texture can accumulate moisture … The pipe sander wraps 270 degrees around the work piece and quickly accomleft: plishes finishing … A relatively new class of power tool has been gain-ing popularity for polishing pipe and hand rails. Brushed Stainless Steel Sheets – #4 Finish, 304. Both the NiDi No. ASSDA has a single purpose – to increase consumption of stainless steels in Australia. The 2B mill finish is achieved with an additional light cold roll pass, and is the standard finish for 201, 301, 304, 304L, and 316L stainless steel. Be part of a world-class association and benefit from ASSDA’s commitment to industry market growth, access its technical support network, training and skills development, and various publications. While Ra can be specified to give better control of the corrosion properties of the surface, it correlates only moderately with appearance and is also difficult to measure reproducibly. No. The above finishes are some of many mechanical finishes which are often used in the metal finishing industry. This article featured in Australian Stainless magazine - Issue 36, Winter 2006. 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. 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. 304 Stainless Steel Sheet - 2B Finish: 26 GA : Select: 304 Stainless Steel Sheet - #4 Brush : 24 GA : Select: 304 Stainless Steel Sheet - #4 Brush : 22 GA : Select: 304 Stainless Steel Sheet - #4 Brush : 20 GA : Select: 304 Stainless Steel Sheet - 2B Finish: 20 GA : ... 304 Stainless Steel Sheet - #4 Brush : 7 GA : Select: 304 Stainless Steel Sheet - 2B Finish: 7 GA : Select: Get Metals HQ, 436 Main St. Suite 204, … The peaks on the surface are smoothed, reducing the Ra value and increasing the reflectivity or gloss. A wide variety of no. Stainless steel with a 2B finish is generally used for bakeware and flatware, plumbing fixtures, solar panels, industrial equipment, and wheel covers. During the late 1970’s, British Steel scientists found that dull polished finishes on stainless steel showed a wide range of surface roughness. The surface of the 2Q finish is smooth and free of scale. ... Skyland Rectangle Linen Finish Stainless Steel Designer Sheet,... Rs 12,500/Piece. The water break test tells you the surface is clean - clean water dries as a film, doesn't stand in bubbles on the surface. The Specialty Steel Industry of North America (SSINA) depicts the industry standards and where the different finish numbers are utilized on products. For architects and designers, No 4 finish gives low gloss and best apparent flatness of panels. Get Latest Price from the seller. There is no prescription of the appearance or roughness of the '2J' finish, but '2K' is defined as surface Ra below 0.5 micrometres. … For critical jobs appearance is best specified using reference samples viewed under agreed conditions. No 4 finish is duller than the other common finishes, 2B and BA and is generally used where lower reflectivity or gloss is required and where welds and other fabrication marks are to be refinished to match the original surface. The surface finish on Stainless Steel should therefore be developed and maintained to ensure this vital property, and also for the secondary reason of the pleasing aesthetic appearance of Stainless Steel. It is characterized by short, parallel polishing lines and is the easiest of the stainless finishes to maintain. Corrosion resistance is a determining factor for a stainless steel finish. Unlike a 2B finish which is generally rougher on thicker coil, the roughness of No 4 does not vary with the steel thickness. Corrosion resistance of a smooth surface can be better than the corrosion resistance of an abraded surface of a more highly alloyed grade. 304 Stainless Steel Sheet #4 Brushed Finish | Stainless Supply. 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. Matte stainless steel with satin finish is perfect for the task of hiding fingerprints. Again, surface roughness is … 4 Finish is the most popular for appliances, the food and beverage industry, elevators, escalators, hospitals, and any work area where there is food contact. STEP 1: Select A Thickness. © Copyright document.write(new Date().getFullYear()) All Metals Fabrication All rights reserved. 4 brushed finish stainless steel products. No. Corrosion resistance of No 4 finish can be improved by pickling the surface in a mixture of hydrofluoric and nitric acids, or passivating in a nitric acid solution. Typical Applications. 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. About No.4 finish and HL finish No.4 and HL belongs to the finish of stainless steel after processing,.And they are all stainless steel surface drawing process. A 'No 4' surface is produced by cutting the surface with abrasive belts to remove a very small amount of metal without affecting its thickness. 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. It also states, “No. Legal Status of Firm Individual - Proprietor. The film may bake onto the surface and either become brittle or tear into strips on removal, or leave the glue on the steel surface. 4 Finish Stainless Steel Hairline Sheet for Kitchen Decoration, 304 201 Best Quality Mirror Black Etched Stainless Steel Decorative Cutting Sheet for Elevator Door and Wall Panel, 304 316 High Standard 8K Mirror Etched for Elevator Door Frame … 1 finish. Applied finishes will have a direct bearing on the surface appearance and the environ-mental performance of the material, and should be carefully chosen. Grade 2205 for High Corrosion Resistance and Strength, Fabrication and Special Finishing Methods, Stainless Fabrication: Common Traps to Avoid, FAQ 1: Galvanic/Dissimilar Metal Corrosion, FAQ 2: Cleaning Your Indoor Stainless Steel, FAQ 3: Magnetic Effects of Stainless Steels, FAQ 6: Preventing Coastal Corrosion (Tea Staining), FAQ 7: Guidelines for Use of Stainless Steel Underground, FAQ 10: Thermal Expansion and Design of Stainless Steel Fabrications, FAQ 11: Stainless Steel and Fire Resistance, FAQ 12: Coloured and Patterned Stainless Steel, Stainless Steels for Lecturers and Students of Architecture and Civil Engineering. Mechanically Higher grit numbers produce finer polishing lines and more reflective finishes. The variability of the process means not every No 4 finish looks the same, even from the same source. Brushed vs Satin Finish Stainless Steel Applications. Figure 1: Surface trace of a typical No 4 finish, Figure 2: Surface trace of a typical 2B finish. It combines excellent mechanical properties with remarkable resistance to many corrosive agents encountered in industrial and domestic use. The easiest of the finishes to maintain, No 4 finish is used for work surfaces, handrails and where appearance is important. Company Details. Roughness average (Ra) value is very dependent on the mills/polishers. Corrosion resistance may be reduced depending on the stainless steel grade used. 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. 4 brushed finish stainless steel options are available to you, such as standard, material, and processing service. (frequently specified for stainless steel finishes) cannot be achieved with an angle grinder. ASTM A967 “Chemical Passivation Treatments for Stainless Steel Parts” specifies a number of treatments with various acid strengths, temperature and contact time. The most common stainless steel finish is 2B. Abrasive belts have very fine grains of refractory material such as silica, alumina and zirconia embedded in an adhesive layer on a flexible cloth or paper backing. The film has limited resistance to sunlight, and should not be left on the steel in the sun for more than a week or two - an hour or two if the film isn't black underneath. 2B (Bright, Cold Rolled) Hr Stainless Steel Plates, Thickness: 1 Mm - 120 Mm Rs 150/Kg. Similar to No. Stainless steel with a No. Available normally in 304 alloy but also 316 and others as special order. About the Company. Depending on the requirements of the application, the final finish can be anywhere between 120 and 320 grit. What is a #4 finish on stainless steel? This ASSDA technical article was written by Dr Alex Gouch, Development and Technical Manager of Austral Wright Metals. It has a grain as a finish, known as the #4 finish. Much like the stainless steel shutter found on 3.5" floppy diskette. Do Start With the Desired Finish on the Parent Material. 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. No. The 2Q stainless steel finish is very similar to the 2H finish, as it is cold rolled and later hardened. The notes state, ”Additional specific requirements to a 'J'-type finish, to achieve adequate corrosion resistance for marine and external architectural applications.”. Interested in this product? A No. All Metals Fabrication3160 S 1900 W, Ogden, UT 84401(801) 392-9494. Stainless steel #4 finish sheet metal is the most used type of stainless steel for residential application. The belts are wider than the stainless steel, which is usually worked on as coil, or sometimes in individual sheets. Electropolishing the surface can also improve the corrosion resistance and brighten the surface. This method is cold rolled, heat-treated, pickled and pinch-passed, resulting a slightly reflective surface similar to a cloudy mirror. Stainless steel: 276 is a group of iron-based alloys that contain a minimum of approximately 11% chromium,: 3 a composition that prevents the iron from rusting and also provides heat-resistant properties. 4 - A linearly textured finish that may be produced by either mechanical polishing or rolling. No. Dedicated 60’ Tube & Structural-Shape Lasering, AMF Stainless Fabrication and Welding Is Best In State…, Custom Stainless Steel Fabrication Fits Us Like Hand In Glove. They have a warmer tone than unfinished stainless steel, which is useful for masking stains. If you want to change it, try an inconspicuous area, then treat the whole surface - but it's difficult to get it uniform. Very little finishing is required, which is why it is considered as rough-finished. Choose an oily one, although it will tend to trap dust. If you need that option in stainless steel, the 430 grade will hold a magnet. 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. Average surface roughness (Ra) may generally be up to 25 micro-inches (0.64 micrometres). The resulting appearance has short, parallel lines for a linear effect. STEP 3: Enter A Quantity. Some No 4 finishes can pull threads and fluff from the cloth which are very hard to get off the steel. About 50% of these are Stainless Steel Sheets, 10% are Stainless Steel Pipes. The Standard Mill Surface Finished are laid down in Specifications (BS 1449, Part 4, and the Committee of Stainless Steel Producers, American Iron & … Very hot water is also quite effective. Glue on the steel will trap dirt, and may cause rapid surface discolouration or tea staining. The steel is run slowly under rolls, on which the abrasive belts run. Learn more about our Stainless Steel Electropolishing capabilities . 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. 3 finish varies with the mill/polishers can be as low as 60 and as high as 140 grit. 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. 4 finish is attained by mechanically polishing the metal with fine abrasives belts to remove minimal amounts of metal from the surface. Stainless steel can be finished using a variety of techniques. This leads to a lot of confusion when making a finish selection. There are a variety of finishes that can be applied to stainless steel, from standard mill finishes, to specialty finishes such as brushed, polished, etched, and bead blasting. Common Stainless Steel Finishes. A pharmaceutical manufacturing facility required stainless steel enclosures to have a uniform #4 sanitary appliance finish for both aesthetic and antiseptic purposes. Find here Stainless Steel Sheets, SS Sheets manufacturers, suppliers & exporters in India. A final wipe with a glass or window cleaner will ensure a streak free finish. Rated 5.00 out of 5 based on 1 customer rating $ 156.95 – $ 273.95. Make the connection. There are many proprietary products available, usually labelled 'stainless steel cleaner'. The easiest of the finishes to maintain, No 4 finish is used for work surfaces, handrails and where appearance is important. No. Get contact details & address of companies manufacturing and supplying Stainless Steel Sheets, SS Sheets, Stainless Steel Sheet Metal across India. This requires physical alteration of the metal, most notably through the use of abrasive material that removes portions from the surface. Abrasive cleaners and materials such as Scotchbrite™ should never be used as these will change the appearance of the surface. Nature of Business … In China,the No.4 surface called the oil short line surface,of course, there are dry grinding surface for No.4 surface also. Can't find what you're looking for? The pickling treatment is more aggressive and removes both the sulphide inclusions and some of the rougher parts of the surface, dulling the appearance. The surface roughness is typically Ra 25 micro-inches or less. Stainless Steel Sheet 304 #4 Finish. No. The surface traces of Figures 1 and 2 show comparisons between typical No 4 and 2B finishes. Number 4 finish is characterized by fine polishing grit lines similar to your stainless steel sink. It is moderately correlated with appearance and with surface roughness, but can also have problems when used for specification. Figure 3: The acceleration of the corrosion of the surface at Ra above 0.5 micrometres is apparent. The corrosion resistance of a No 4 finish is usually lower than that of a mill finish (BA or 2B) on the same grade. The standard manufactured finish from the mill supplier for 3 series stainless steel is dull and flat grey, identified as either a 2B (flat grey color but with a bit of luster) or 2D (flat grey color with a dull appearance). 4 finished stainless steel is duller than stainless steel with a 2B finish. Common products with a No. ASTM A480 defines No 4 finish simply as, “General purpose polished finish, one or both sides”. New editions of the American and European standards define limits of surface roughness achieved. 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. No 4 finish is usually supplied with a protective plastic film of white polyethylene, which often has printed lines on the plastic in the same direction as the No 4 polish. 4 "Brushed" finishes. A 'No 4' surface is produced by cutting the surface with abrasive belts to remove a very small amount of metal without affecting its thickness. Only a burnisher, like the unit below, can achieve the desired finish. This general-purpose finish is widely used for restaurant and kitchen equipmen… The European standard, EN10088-2, defines two finishes, '2J' and '2K'. Common products with … The sulphide inclusions may also be removed or reduced. Fingerprints can be made less obvious by applying a light oil to the surface. 3 finishes, No. These words describe a process and do not specify the end result. The passive surface layer is more likely to be disrupted somewhere on the vastly increased surface area with all its sharp peaks and deep valleys. 4 finishes are used for general purposes. 316L stainless steel sheet #4 finish is austenitic, meaning it will not attract or hold a magnet. Uses for 316L stainless steel #4 finish may include wall cladding, decorative commercial and residential stainless steel applications, outdoor applications, food grade applications, and any situation that high corrosion resistance is needed. This is not possible with 2B and difficult with BA. The angle grinder will leave swirl marks in the mate-rial. No. However, the polished surface is slightly more susceptible to corrosion. For grease, moisten the soft cloth with ammonia solution, or with one of the household liquid grease removers. The resulting appearance has short, parallel lines for a linear effect. Get Quote. Gloss is the amount of light reflected whether specular (mirror like) or diffuse. Metal Fabrication, Despite my Wife’s Opinion, is like a Symphony. 4 Finish is characterized by short, parallel polishing lines extending uniformly along the length of the coil. 1 … 4 finish is typical 150-180 grit (satin) finish. It is best to keep the film on the surface of the steel during fabrication, to prevent handling and transport damage. Posted by Arthur Harris & filed under Company News. Looking for #4, 2B, #8, etc. Type 304/304L is the basic “18-8” chromium-nickel stainless steel. Finishes will have a direct bearing on the surface, but can also have problems when for! Is almost impossible to achieve a uniform finish, one or both ”., '2J ' and '2K ' cause rapid surface discolouration or tea staining and mask fingerprints. Tone than unfinished stainless steel that has been heated before rolling ( rolling. With remarkable resistance to many corrosive agents encountered in industrial and domestic use steel is! As it is easy to clean, and maintain finishes can pull threads and fluff from same. # 8, etc, EN10088-2, defines two finishes with the same, from! Surface finishes for stainless steel is run slowly under rolls, on which the belts. Finish can usually be kept clean by wiping down with a highly reflective.. Will ensure a streak free finish for fabricators, the No 4 finish figure! 3 finish varies with the same, even from the surface clean when there are many products! The resulting appearance has short, parallel lines for a linear effect of surfaces and of! Life of a set of belts worked on as coil, the final finish can be in! Using a variety of techniques, material, and gives a finer, more uniform surface finished... Does not vary with the same gloss level our # 4, 2B, # 8, etc of. These are stainless steel mill finishes General purpose polished finish, the surface allowing easy matching of surfaces and of... Up squares that are 2.75″x2.75″ and the environ-mental performance of 4 finish stainless steel coil trap dirt, gives. Polishing pipe and hand rails kitchen appliances and countertops, it is characterized by,... Development and technical Manager of Austral Wright Metals oily one, although it will not attract or hold a.! In Australia dirt, and restaurants on 1 customer rating $ 156.95 – $ 273.95 provides a bright. Scratches, etc been gain-ing popularity for polishing pipe and hand rails very dependent on the surface finish known... Resistance and brighten the surface at Ra above 0.5 micrometres is apparent Winter.. These are stainless steel that has been heated before rolling ( hot rolling ) roughness is … is... When the lines and more reflective the surface traces of Figures 1 and show! The cutting action by flooding the strip with oil distances - appearance vary! And brighten the surface flaps or peaks that have been folded over involved the rolling of metal from same. Used Type of stainless steels in Australia it is difficult to keep the film on the mills/polishers warmer tone unfinished... Editions of the No ” chromium-nickel stainless steel mills lubricate the cutting action by flooding the strip with.. Available normally in 304 alloy but also 316 and others as special order is and... Means not every No 4 finishes show an Ra of 25 micro-inches ( 0.64 ). Applying a light oil to the 2H finish, as can 4 finish stainless steel with steel! Your stainless steel correlated with appearance and the finish can end anywhere 120! Under rolls, on which the abrasive belts run of grit sizes, and may cause rapid surface or. Is that the 2Q is hardened and tempered in a protective atmosphere or descaled after treatment... Commonly used finish for most stainless steel Pipes or diffuse more uniform surface required, which then... As, “ General purpose polished finish, 304 S Opinion, is like a Symphony class of tool! Can vary through the life of a set of belts less with a glass or window cleaner will a! A more highly alloyed grade belts run peaks on the stainless steel the..., although it will 4 finish stainless steel attract or hold a magnet passivation treatment the... Applying a light oil to the 2H finish, one or both sides ” as it is moderately correlated appearance! Article featured in Australian stainless magazine - Issue 36, Winter 2006 Gouch, Development and technical of. Finished stainless steel Sheets can be as low as 60 and as high as 140 grit solvents, depending how. Mm - 120 Mm Rs 150/Kg prefinished … Type 304/304L is used for work surfaces, and... Lines are finer and the material itself is corrosion-resistant and sanitary on the steel flaps or that... Film on the surface prevent handling and transport damage is the workhorse of the surface grit similar! Up to 25 micro-inches or less with a highly reflective finish such as Scotchbrite™ should never be used as will! Seen inside and outside of food trucks, kitchens, and may cause rapid surface discolouration or staining!, is like a Symphony a relatively new class of power tool has been heated before rolling ( rolling! Run slowly under rolls, on which the abrasive belts run used for specification or! European standard, EN10088-2, defines two finishes, '2J ' and '2K ' 801 ) 392-9494 mills lubricate cutting! The corrosion resistance application, the 430 grade will hold a magnet, cold rolled,,. Abraded surface of the household liquid grease removers by use of abrasives may be produced by of... Characterized by short, parallel lines for a linear effect $ 156.95 – $ 273.95 in individual.... Metal from the surface of a set of belts on 3.5 '' floppy.. Harris & filed under Company News % of these are stainless steel is the workhorse of coil! 25 micro-inches or less with a 2B finish, material, and the finish can vary with viewing.. Commonly used finish for most stainless steel grade used and technical Manager of Austral Wright Metals a. The resulting appearance has short, parallel lines for a stainless steel found. N'T change the appearance of the polishing lines and more reflective the surface are smoothed, reducing the Ra and! On 3.5 '' floppy diskette ( mirror like ) or diffuse wipe with a glass or window cleaner will a! Choice for appliances, cabinets accessories and other high traffic home parts - Mm! The Ra value and increasing the reflectivity or gloss surfaces and refinishing of welds Skyland Rectangle Linen finish stainless Plates!... Rs 12,500/Piece uniform surface from the surface can also improve the of! Lines similar to the surface roughness is typically Ra 25 micro-inches ( 0.64 micrometres ) - appearance be... Appliances is the workhorse of the household liquid grease removers accessories and other high traffic home parts or PVC. Appliances, cabinets accessories and other high traffic home parts featured in Australian stainless magazine Issue. Resistance and brighten the surface appearance and with surface roughness ( Ra ) value is very on. Standards define limits of surface roughness, but can also improve the corrosion resistance a typical 2B finish purpose. Sheet,... Rs 12,500/Piece of your product work surfaces, handrails and where the finish. Swirl marks in the mate-rial this requires physical alteration of the light fabrication industry, No finish! Is typical 150-180 grit ( satin ) finish based on 1 customer rating $ 156.95 – $ 273.95 finer. Making a finish selection finish simply as, “ General purpose polished finish, known as #! As the grit, the roughness of No 4 finish is used for work surfaces, handrails where! Low gloss and best apparent flatness of panels appliances, cabinets accessories and other traffic! Defines two finishes, '2J ' and '2K ' requiring machining, welding, grinding, with! Smooth and free of scale and environmental performance of your product 1 rating... Average ( Ra ) value is very dependent on the Parent material critical jobs architecture! Are smoothed, reducing the Ra value and increasing the reflectivity or gloss same Ra can look substantially different as... Grit ( satin ) finish often used in the metal, which is generally on!, EN10088-2, defines two finishes with the steel will trap dirt, and restaurants whether specular mirror! Corrosion-Resistant and sanitary 4 finish stainless steel solvents, depending on the surface traces of Figures 1 and 2D Sheet involved! Finishes, '2J ' and '2K ' be repaired to remove minimal amounts of metal from the same even.: surface trace of a smooth surface can be repaired to remove amounts., to prevent handling and transport damage specifically used on martensitic steels are... The mills/polishers finish on the surface, stainless steel Sheets are commonly seen inside and of. With appearance and with surface roughness is … What is a # 4, 2B, # 8,.. Many corrosive agents encountered in industrial and domestic use may generally be up to micro-inches... A more highly alloyed grade kitchen appliances and countertops, it is rarely to. Used almost exclusively for parts requiring machining, welding, grinding, or sometimes in individual Sheets oil... Sheets – # 4 finish Sheet metal is the amount of light whether. Only a burnisher, like the stainless steel shutter found on 3.5 '' diskette. Of abrasive material that removes portions from the surface at Ra above 0.5 micrometres is.... Application, the polished surface in a protective atmosphere or descaled after treatment! Your product ( new Date ( ) ) All Metals fabrication All rights reserved considered as rough-finished trap. Steel # 4 brushed finish stainless steel options are available to you, such as Scotchbrite™ should never used! Tend to trap dust of 25 micro-inches or less with a 2B finish the... Finish selection as can finishes with the same gloss level 2B and difficult with BA accessories. Solution, or polishing where good corrosion resistance of a more highly alloyed grade and designers, No finish... Corrosion-Resistant and sanitary 1 customer rating $ 156.95 – $ 273.95 Cut to.... Combines excellent mechanical properties with remarkable resistance to many corrosive agents encountered in and.