Guide to Stainless Steel Finishes - imoa.info

1 Guide to Stainless Steel FinishesBuilding Series, Volume 1 Guide TO Stainless Steel FINISHESEuro InoxEuro Inox is the European market development associa-tion for Stainless members of Euro Inox include: European Stainless Steel producers National Stainless Steel development associations Development associations of the alloying prime objective of Euro Inox is to create awareness ofthe unique properties of Stainless steels and to furthertheir use in existing applications and in new markets. To assistthis purpose, Euro Inox organises conferencesand seminars, and issues guidance in printed form and electronic format, to enable architects, designers, specifiers, fabricators, and end users, to become more familiar with the material.

2 Euro Inox also supportstechnical and market MembersAcerinox, , Acciai Speciali Terni, Nirosta, & ALZ BelgiumUgine & ALZ FranceGroupe Arcelor, MembersBritish Stainless Steel Association (BSSA), , Inox, Edelstahl Rostfrei, f r nichtrostende St hle SWISS INOX, de D veloppement de l Inox ( ), Chromium Development Association(ICDA), Molybdenum Association(IMOA), Institute, Unia Dystrybutor w Stali (PUDS), TO Stainless Steel FINISHESC ontentIntroduction2 Mill Finishes3 Mechanically Polished and Brushed Finishes4 Patterned Finishes8 Bead Blasted Finishes11 Electro-Polished Finishes12 Coloured Finishes13 Electrolytically Coloured Finishes13 Electrolytically Coloured and Patterned Finishes14 Organic Coatings15 Specialist Decorative Finishes16 Annex A: Technical and Practical Aspects18 Annex B: EN 10088/220 Building Master / Architect, Designer / PhotographerCover: Belgacom / Michel Jaspers / above: Ballast Nedam Amstelveen / Zwarts en Jansma / Charles below.

3 Eurostar / Nick Derbyshire Design / Charles above: RATP / Atelier Bernard Kohn / Denis below: RATP / Antoine Grumbach, Pierre Schaall / Denis : Flensburger Sparkasse / Kreor S d GmbH / Fotostudio : Belgacom / Michel Jaspers / above: Ayuntamiento de Elche / Pilar Amoros / Juan Jos below: Blackstone Group / Sir Howard Robertson / David background: Etablissement Public du Parc de la Vilette / Adrien Fainsilber / Sonja : Eurostar / Nicolas Grimshaw and Partners / David : Tomas Kiang / Helmut Richter / Rupert SteinerAcknowledgementsGuide to Stainless Steel FinishesThird Edition 2005 (Building Series, Vol.)

4 1)ISBN 2-87997-173-X Euro Inox 2005 Dutch versionISBN 2-87997-027-XFinnish versionISBN 2-87997-015-6 French versionISBN 2-87997-026-1 German versionISBN 2-87997-023-7 Italian versionISBN 2-87997-024-5 Polish versionISBN 2-87997-079-2 Spanish versionISBN 2-87997-025-3 Swedish versionISBN 2-87997-014-8 Turkish versionISBN 2-87997-161-6 EditorEuro InoxRegistered office: 241 route d Arlon1150 Luxembourg, Grand Duchy of LuxembourgPhone +352 26 10 30 50 Fax +352 26 10 30 51 Executive office: Diamant Building, Bd. A. Reyers 80,1030 Brussels, BelgiumPhone +32 2 706 82 67 Fax +32 2 706 82 Cochrane, Nickel Development Institute, Sidcup, (Text)Martina Helzel, circa drei, Munich, Germany(Concept and Layout)DisclaimerEuro Inox has made every effort to ensure that the information presented in this document is technicallycorrect.

5 However, the reader is advised that the materi-alcontained herein is for general information Inox, its members, staff, and consultants,specifically disclaim any liability or responsibility forloss, damage,or injury, resulting from the use of theinformation contained in this above: RWE AG / propeller z / propeller below: Railtrack / Nicolas Grimshaw and Partners / Charles left: Dr. K. / Planung Fahr + Partner PFP / Planung Fahr + Partner right: Industrie- und Handelskammer zu Berlin /Nicolas Grimshaw and Partners / Werner : GbR E. St ckl, G. St ckl, A. Brunnmeier / Heene Pr bst + Partner / Heene Pr bst + :Galbusera / G.

6 Baroni, G. Genghini, M. Pellacini, Assostudio / Milena : Eurodisneyland / Frank O. Gehry and Associates Charles : State Hermitage Museum / Gerard Prins / Henk : Esmepuli, / Esmepuli, / David :Ostdeutsche Sparkassenakademie / Pysall, Stahrenberg & Partner / Lutz TO Stainless Steel FINISHESIn the Eurostar Inter-national Railway Stationat Ashford, England, Stainless Steel panelswere extensively used for the control desksand refreshment columns at Amstel-veen bus station in theNetherlands were cladwith a pattern rolledstainless Steel ; an idealsurface for active pede-strian steels are a family of materials witha unique set of properties.

7 Protected by achromium oxide film at the surface which isformed by a reaction of the chromium in thesteel and the oxygen in the atmosphere, Stainless steels require no added surfaceprotection against corrosion. In the event ofthe surface becoming damaged, the filmimmediately self repairs in the presence ofoxygen. As illustrated later in this brochurethis protective layer can be modified bychemical process to produce permanentmetallic steels are ideally suited to buildingapplications. They are readily formable andweldable and further information on theirphysical properties is given in the EuropeanStandard EN 10088 Part mill Finishes and mechanicallytreated surface Finishes of appropriate hotand cold rolled Stainless steels are given in EN 10088 Part 2 in which the designationsfor surface Finishes are given by number, forexample, 1 for hot rolled, 2 for cold rolled,and classified by a combination of numberand letter as 2J.

8 This system provides basic in-formation on process route and description,butnot on practical purpose of this Guide therefore is to : show to the architect and designer the widerange of possible surfaces at his/herdisposal provide more detail on the processesinvolved provide basic technical advice on theirapplicationMill Finishes , whether hot or cold rolled, arethe basic supply condition for all stainlesssteel flat products. They are used universallyfor standard building components but arealso the basis for subsequent finishing pro-cesses that alter the surface to meet moredemanding architectural particular surface designations are im-portant for architectural and building appli-cations.

9 These are: 1D, 2D, 2B and 2R. Mill FinishesGUIDE TO Stainless Steel FINISHES31 DHot rolled and annealed, and with the mill scale removed, this surface condition is classified as a 1 Dfinish. This surface, which is found on thicker sheetsand plate, is slightly coarse with very low is primarily used for non-decorative purposeswhere the visual appearance is less relevant, forexample, in unexposed support systems, andstructural is a more refined surface than 1D and is achievedbycold rolling, heat treating and pickling. The low reflective matt surface appearance is suitable for industrial and engineering needs but, architecturally,issuitable for less critical aesthetic is produced as 2D, but a final light rolling usinghighly polished rolls gives the surface a smooth,reflective, grey sheen.

10 This is the most widely usedsurface finish in use today and forms the basis formost polished and brushed annealing under Oxygen-free atmosphericconditions following cold rolling using polished rolls,a highly reflective finish, that will reflect clearimages, is obtained. This ultra-smooth surface is lesslikely to harbour airborne contaminants or moisturethan any other mill finish, and it is easy to maximise resistance to corrosion in the as-supplied condition, mill finish surfacesare acid cleaned (pickled) to remove scale formed during the hot rolling and TO Stainless Steel FINISHESM echanically Polished and Brushed FinishesThe number of additional finishing processescan be minimised by selecting, as the startingpoint, the closest mill finish to the desiredend Finishes will have a direct bearing on the surface appearance and the environ-mental performance of the material, andshould be carefully chosen.