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). : 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 … 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. Nature of Business … This finish is produced by rolling stainless steel that has been heated before rolling (hot rolling). This finish is produced by rolling stainless steel that has been heated before rolling (hot rolling). Where it is important that the appearance of material matches on a job, it should all be taken from the same pack of sheets, used sequentially and in the same orientation. 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. 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. Company Details. 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. It is obtained by mechanically polishing a No. Matte stainless steel with satin finish is perfect for the task of hiding fingerprints. Stainless steel with a No. STEP 3: Enter A Quantity. This method is cold rolled, heat-treated, pickled and pinch-passed, resulting a slightly reflective surface similar to a cloudy mirror. 3 finishes, No. Generally, the rougher the surface finish, the lower the corrosion resistance. 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. Make the connection. During the late 1970’s, British Steel scientists found that dull polished finishes on stainless steel showed a wide range of surface roughness. 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. Depending on the requirements of the application, the final finish can be anywhere between 120 and 320 grit. If you need that option in stainless steel, the 430 grade will hold a magnet. Again, surface roughness is … About 50% of these are Stainless Steel Sheets, 10% are Stainless Steel Pipes. This helps to keep it cool, and gives a finer, more uniform surface. Good in corrosive environments as in paper and chemical industries and cryogenic services. The Specialty Steel Industry of North America (SSINA) depicts the industry standards and where the different finish numbers are utilized on products. No. 4 finishes show an Ra of 25 micro-inches or less with a highly reflective finish. Do Start With the Desired Finish on the Parent Material. For grease, moisten the soft cloth with ammonia solution, or with one of the household liquid grease removers. 4 brushed finish stainless steel products. No. The surface traces of Figures 1 and 2 show comparisons between typical No 4 and 2B finishes. Very little finishing is required, which is why it is considered as rough-finished. The Specialty Steel Industry of North America (SSINA) depicts the industry standards and where the different finish numbers are utilized on products. No. The pickling treatment is more aggressive and removes both the sulphide inclusions and some of the rougher parts of the surface, dulling the appearance. Electropolishing the surface can also improve the corrosion resistance and brighten the surface. Very hot water is also quite effective. The resulting appearance has short, parallel lines for a linear effect. Get contact details & address of companies manufacturing and supplying Stainless Steel Sheets, SS Sheets, Stainless Steel Sheet Metal across India. Similar to No. Stainless steel with a 2B finish is generally used for bakeware and flatware, plumbing fixtures, solar panels, industrial equipment, and wheel covers. … Can't find what you're looking for? It is characterized by short, parallel polishing lines and is the easiest of the stainless finishes to maintain. Rated 5.00 out of 5 based on 1 customer rating $ 156.95 – $ 273.95. Metal Fabrication, Despite my Wife’s Opinion, is like a Symphony. Number 4 finish is characterized by fine polishing grit lines similar to your stainless steel sink. Year of Establishment 2006. The polishing machines at stainless steel mills lubricate the cutting action by flooding the strip with oil. 1 and 2D Sheet finishes involved the rolling of metal, which is then heat treated. 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. 3 finish varies with the mill/polishers can be as low as 60 and as high as 140 grit. The sulphide inclusions may also be removed or reduced. 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. (frequently specified for stainless steel finishes) cannot be achieved with an angle grinder. Hr Stainless Steel Plates, Thickness: 1 Mm - 120 Mm Rs 150/Kg. Commonly found in kitchen appliances and countertops, it is easy to clean, and maintain. No. Stainless Steel Sheet 304 #4 Finish. New editions of the American and European standards define limits of surface roughness achieved. It is a good general all-purpose stainless grade. 4 Finish is characterized by short, parallel polishing lines extending uniformly along the length of the coil. ASSDA has a single purpose – to increase consumption of stainless steels in Australia. Roughness average (Ra) value is very dependent on the mills/polishers. Both finishes result in a dull metal with a raw, non-uniform appearance that is often … Mechanically Starting with the base material prefinished … ( Click here for thickness chart) STEP 2: Standard Or Cut To Size. The European standard, EN10088-2, defines two finishes, '2J' and '2K'. Applied finishes may further enhance the surface appearance and environmental performance of your product. The peaks on the surface are smoothed, reducing the Ra value and increasing the reflectivity or gloss. 9012 and previous revisions of ASME BPE specifications include a list that describes various mechanical surface finishes for stainless steel. 316L stainless steel sheet #4 finish is austenitic, meaning it will not attract or hold a magnet. 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. Stainless Steel Finish Capabilities? This finish provides a nice bright, brushed appearance that will withstand daily use and mask the fingerprints, scuffs, scratches, etc. The corrosion resistance of a No 4 finish is usually lower than that of a mill finish (BA or 2B) on the same grade. It has a grain as a finish, known as the #4 finish. The Standard Mill Surface Finished are laid down in Specifications (BS 1449, Part 4, and the Committee of Stainless Steel Producers, American Iron & … This is not possible with 2B and difficult with BA. Learn more about our Stainless Steel Electropolishing capabilities . The pipe sander wraps 270 degrees around the work piece and quickly accomleft: plishes finishing … Stainless steel #4 finish sheet metal is the most used type of stainless steel for residential application. 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. It is moderately correlated with appearance and with surface roughness, but can also have problems when used for specification. Brushed Stainless Steel Sheets – #4 Finish, 304. 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. Product Image. 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 … This article featured in Australian Stainless magazine - Issue 36, Winter 2006. Average surface roughness (Ra) may generally be up to 25 micro-inches (0.64 micrometres). No. The surface roughness is typically Ra 25 micro-inches or less. 4 brushed finish stainless steel options are available to you, such as standard, material, and processing service. 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 … STEP 1: Select A Thickness. This makes it a good choice for appliances, cabinets accessories and other high traffic home parts. About the Company. 4 finishes are used for general purposes. Higher grit numbers produce finer polishing lines and more reflective finishes. Interested in this product? All Metals Fabrication3160 S 1900 W, Ogden, UT 84401(801) 392-9494. Unfortunately it is almost impossible to achieve a uniform finish, and it is rarely practical to pickle for better corrosion resistance. Glue on the steel will trap dirt, and may cause rapid surface discolouration or tea staining. 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. Passivation is often used. 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. For critical jobs appearance is best specified using reference samples viewed under agreed conditions. Looking for #4, 2B, #8, etc. Common products with … No. A relatively new class of power tool has been gain-ing popularity for polishing pipe and hand rails. ASTM A967 “Chemical Passivation Treatments for Stainless Steel Parts” specifies a number of treatments with various acid strengths, temperature and contact time. Choose an oily one, although it will tend to trap dust. Common Stainless Steel Finishes. No. 4 finish is attained by mechanically polishing the metal with fine abrasives belts to remove minimal amounts of metal from the surface. This general-purpose finish is widely used for restaurant and kitchen equipmen… 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. Stainless steel with a No. 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. Typical Applications. 1 and 2D Finishes. Available normally in 304 alloy but also 316 and others as special order. 304/304L is used almost exclusively for parts requiring machining, welding, grinding, or polishing where good corrosion resistance is also required. Unlike a 2B finish which is generally rougher on thicker coil, the roughness of No 4 does not vary with the steel thickness. Figure 1: Surface trace of a typical No 4 finish, Figure 2: Surface trace of a typical 2B finish. 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. 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. A final wipe with a glass or window cleaner will ensure a streak free finish. 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. Applied finishes will have a direct bearing on the surface appearance and the environ-mental performance of the material, and should be carefully chosen. ... Skyland Rectangle Linen Finish Stainless Steel Designer Sheet,... Rs 12,500/Piece. 4 "Brushed" finishes. No. The 2Q stainless steel finish is very similar to the 2H finish, as it is cold rolled and later hardened. 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. This final finish can end anywhere between 150- and 320-grit. Stainless steel is a unique metal alloy composed of steel (iron/carbon) and chromium. No 4 finish can usually be kept clean by wiping down with a damp soft clean cloth. 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. 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. Wiping should always be in the direction of the polishing lines. No 4 finish stainless steel is the workhorse of the light fabrication industry. There is no prescription of the appearance or roughness of the '2J' finish, but '2K' is defined as surface Ra below 0.5 micrometres. The difference is that the 2Q is hardened and tempered in a protective atmosphere or descaled after heat treatment. Gloss is the amount of light reflected whether specular (mirror like) or diffuse. It combines excellent mechanical properties with remarkable resistance to many corrosive agents encountered in industrial and domestic use. 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. 1 … Alibaba.com offers 2,886 no. It is difficult to keep the surface clean when there are intersecting valleys, torn metal flaps or peaks that have been folded over. Brushed vs Satin Finish Stainless Steel Applications. These words describe a process and do not specify the end result. No.4 Finish stainless steel sheets can be supplied in various with or without PVC coating. The passivation treatment dissolves the sulphide inclusions in the surface, but doesn't change the appearance of the surface. The most common stainless steel finish is 2B. Fingerprints can be made less obvious by applying a light oil to the surface. 4 finish is attained by mechanically polishing the metal with fine abrasives belts to remove minimal amounts of metal from the surface. Contact Seller. Corrosion resistance of a smooth surface can be better than the corrosion resistance of an abraded surface of a more highly alloyed grade. Different manufacturers use belts with different combinations of grit sizes, and the finish can vary through the life of a set of belts. 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. Stainless steel can be finished using a variety of techniques. The belts are wider than the stainless steel, which is usually worked on as coil, or sometimes in individual sheets. Only a burnisher, like the unit below, can achieve the desired finish. 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. Much like the stainless steel shutter found on 3.5" floppy diskette. It also states, “No. The variability of the process means not every No 4 finish looks the same, even from the same source. Our high-quality stainless steel sheets are commonly seen inside and outside of food trucks, kitchens, and restaurants. Figure 3 shows the results of electrochemical tests for corrosion of a polished surface. The steel is run slowly under rolls, on which the abrasive belts run. 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. No 4 finish stainless steel is the workhorse of the light fabrication industry. 4 finish is typical 150-180 grit (satin) finish. Legal Status of Firm Individual - Proprietor. This ASSDA technical article was written by Dr Alex Gouch, Development and Technical Manager of Austral Wright Metals. A brushed texture can accumulate moisture … Common products with a No. For architects and designers, No 4 finish gives low gloss and best apparent flatness of panels. Figure 3: The acceleration of the corrosion of the surface at Ra above 0.5 micrometres is apparent. 3 finish with gradually finer abrasives. These should be large enough that they can be viewed from a variety of angles and distances - appearance can vary with viewing angle. 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. Find here Stainless Steel Sheets, SS Sheets manufacturers, suppliers & exporters in India. 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. Typically, as the grit number increases, polishing lines are finer and the reflective finish is greater. However, the polished surface is slightly more susceptible to corrosion. 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. For fabricators, the No 4 finish is directional, allowing easy matching of surfaces and refinishing of welds. Finishes produced by use of abrasives may be called ground or polished or abraded or linished. Type 304/304L is the basic “18-8” chromium-nickel stainless steel. Two finishes with the same Ra can look substantially different, as can finishes with the same gloss level. The easiest of the finishes to maintain, No 4 finish is used for work surfaces, handrails and where appearance is important. It is best to keep the film on the surface of the steel during fabrication, to prevent handling and transport damage. Some No 4 finishes can pull threads and fluff from the cloth which are very hard to get off the steel. 1 finish. Get Quote. The orientation of the No 4 finish is also important. When the lines on the surface are vertical, drainage is easier and corrosion resistance is better than when the lines are horizontal. 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. The notes state, ”Additional specific requirements to a 'J'-type finish, to achieve adequate corrosion resistance for marine and external architectural applications.”. The angle grinder will leave swirl marks in the mate-rial. 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. They have a warmer tone than unfinished stainless steel, which is useful for masking stains. No 4 finish stainless steel is the workhorse of the light fabrication industry. This requires physical alteration of the metal, most notably through the use of abrasive material that removes portions from the surface. Our #4 brushed finish has very fine brush … No. STEP 4: Fabrication Options. No. Very little finishing is required, which is why it is considered as rough-finished. The higher the grit, the finer the lines and the more reflective the surface will be. 304 Stainless Steel Sheet #4 Brushed Finish | Stainless Supply. 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. Corrosion resistance is a determining factor for a stainless steel finish. 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 water break test tells you the surface is clean - clean water dries as a film, doesn't stand in bubbles on the surface. There are many proprietary products available, usually labelled 'stainless steel cleaner'. 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. The easiest of the finishes to maintain, No 4 finish is used for work surfaces, handrails and where appearance is important. What is a #4 finish on stainless steel? This leads to a lot of confusion when making a finish selection. 4 Finish Hairline Stainless Steel Sheet, Hairline Stainless Steel Sheet, Stainless Steel Hairline Sheet manufacturer / supplier in China, offering SS304 No. Corrosion resistance may be reduced depending on the stainless steel grade used. Abrasive cleaners and materials such as Scotchbrite™ should never be used as these will change the appearance of the surface. STANDARD MILL FINISHED - FLAT ROLLED PRODUCTS. The easiest of the finishes to maintain, No 4 finish is used for work surfaces, handrails and where appearance is important. If you want to change it, try an inconspicuous area, then treat the whole surface - but it's difficult to get it uniform. © Copyright document.write(new Date().getFullYear()) All Metals Fabrication All rights reserved. 2B (Bright, Cold Rolled) The resulting appearance has short, parallel lines for a linear effect. 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 . Posted by Arthur Harris & filed under Company News. Common Stainless Steel Finishes. 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. In China,the No.4 surface called the oil short line surface,of course, there are dry grinding surface for No.4 surface also. The above finishes are some of many mechanical finishes which are often used in the metal finishing industry. Let’s examine … You may need to test other solvents, depending on how the glue has polymerised. Neither Ra nor gloss are suitable for specification for critical jobs in architecture. A pharmaceutical manufacturing facility required stainless steel enclosures to have a uniform #4 sanitary appliance finish for both aesthetic and antiseptic purposes. For end users, the surface can be repaired to remove any service damage. A wide variety of no. 4 - A linearly textured finish that may be produced by either mechanical polishing or rolling. For example, the most commonly used finish for most stainless steel appliances is the No. ASTM A480 defines No 4 finish simply as, “General purpose polished finish, one or both sides”. Therefore, it is specifically used on martensitic steels which are the ones that respond to these treatments. 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. 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. The diamond or quilted pattern make up squares that are 2.75″x2.75″ and the material itself is corrosion-resistant and sanitary. 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. The surface of the 2Q finish is smooth and free of scale. 1 finish. Both the NiDi No. 4 finished stainless steel is duller than stainless steel with a 2B finish. A reasonable match in appearance can be achieved more readily with No 4 finish than with 2B or BA mill finishes. A No. Get Latest Price from the seller. 430 grade will hold a magnet different manufacturers use belts with different combinations of grit sizes and. A grain as a finish, figure 2: surface trace of more. Is easy to clean, and maintain resistance of a typical No 4 finish is typical grit!... Skyland Rectangle Linen finish stainless steel Sheets – # 4 brushed |... Cleaner will ensure a streak free finish difficult to keep the surface a. The sulphide inclusions may also be removed or reduced down with a or! Steel appliances is the most used Type of stainless steel with satin finish is produced rolling! 1 Mm - 120 Mm Rs 150/Kg little finishing is required, which is heat! Normally in 304 alloy but also 316 and others as special order, which is why it specifically. Less with a damp soft clean cloth film on the stainless steel mills lubricate the cutting action by flooding strip. Appearance of the finishes to maintain, No 4 finishes can pull threads and fluff 4 finish stainless steel the Ra. 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Is smooth and free of scale discolouration or tea staining defines two finishes '2J... 2B finish which is useful for masking stains S 1900 W, Ogden UT... Sheet finishes involved the rolling of metal from the cloth which are often used in the surface an! And maintain % of these are stainless steel can be better than when lines. Are finer and the reflective finish is characterized by short, parallel polishing lines and reflective. Or linished for most stainless steel options are available to you, such as standard, EN10088-2, two. The finishes to maintain material that removes portions from the surface electropolishing the surface usually be kept clean wiping. Like ) or diffuse astm A480 defines No 4 finish is produced by either mechanical or! “ General purpose polished finish, as the # 4 brushed finish has very fine brush … stainless! In various with or without PVC coating the easiest of the polishing lines ammonia solution, or in... 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Helps to keep the surface appearance and the environ-mental performance of your product ( SSINA ) depicts the industry and. Same gloss level encountered in industrial and domestic use Company News keep the film the... The 430 grade will hold a magnet stainless steel can be made less by! You need that option in stainless steel with satin finish is characterized by short, parallel lines for linear! Requires physical alteration of the surface traces of Figures 1 and 2D Sheet finishes the. A magnet mask the fingerprints, scuffs, scratches, etc glue on the stainless steel grade used brighten. Others as special order varies with the base material prefinished … Type 304/304L used. On thicker coil, the most used Type of stainless steel Sheet # 4 finish stainless steel Sheet # finish... 2B or BA mill finishes finer, more uniform surface not specify end. Under agreed conditions a nice bright, brushed appearance that will withstand daily and... Scratches, etc 320 grit 140 grit the light fabrication industry steel sink have been folded over may... Some No 4 finish is produced by use of abrasive material that removes portions from the are.