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Category: Corrosion & Oxidation

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  1. 100 Years of Stainless Steel Book

    As part of the centenary celebrations a special edition book has been commissioned by Marketing Sheffield and produced by Sheffield Newspapers.

    An extraordinary discovery by a remarkable man changed the face of the modern world. Harry Brearley grew up in a poverty stricken family yet the stainless steel he discovered has left Sheffield's fingerprint on some of the world's most iconic buildings and inventions.

    The 100 Years of Stainless Steel book covers the journey from Brearley's childhood to the discovery and huge impact it still has today. Through an impressive collection of photographs it tells the story from inside the steelworks, how stainless steel shaped the city and how it continues to play a major role in 2013.

    PRICE

    Standard Price - £28.00 including UK postage and packaging

    Overseas Orders:

    EU - £40.00 including P&P - Card payments only

    Rest of the World - £50.00 including P&P - Card payments only

    For assistance please contact admin@bssa.org.uk

    To order a copy, please complete the order form below, or you can order via our online shop: https://www.bssa.org.uk/products.

  2. An introduction to the corrosion resistance of stainless steels

    Stainless steels can be susceptible to certain localised corrosion mechanisms, namely crevice corrosion, pitting, intercrystalline corrosion, stress corrosion cracking and bimetallic (galvanic) corrosion. Localised corrosion is often associated wuth chloride ions in aqueous environments. Corrosion resistance relies on a good supply of oxygen. Higher levels of chromium, nickel, molybdenum and nitrogen increase resistance to localised corrosion.

  3. Architectural information about stainless steel

    This article describes the contents of the Architects' Guide to Stainless Steel, an online resource containing an extensive amount of architectural information concerning stainless steel. The topics covered include grade selection, product forms, durability, economics, production and fabrication, surface finish, joining, maintenance and cleaning. The computer aided learning package Stainless SteelCAL is also described.

  4. Bimetallic (galvanic) corrosion risks from contact with galvanised steel or aluminium

    Bimetallic corrosion can only occur when two dissimilar metals are in 'electrical' contact and are bridged by an electrically conductive liquid. The risk of corrosion and staining when stainless steels are in contact with either galvanised steel or aluminium are described. (143)

  5. Calculation of pitting resistance equivalent numbers (PREN)

    Pitting resistance equivalent numbers (PREN) are a theoretical way of comparing stainless steels, using their chemical compositions. The formulae are based mainly on chromium, molybdenum and nitrogen contents. Grades with a PREN of 40 or more are known as 'super' austenitics or duplex types, depending to which basic family they belong. A table of calculated PREN values compares some of the ferritic, austenitic and duplex steel grades.

  6. Common names for chemicals and selection of appropriate stainless steel grades

    Some chemical have both a 'scientific' and 'common' name, for example caustic soda is the common name for sodium hydroxide. Most corrosion table data uses the scientific names and so finding information can sometimes be difficult when only a common name is known. Reference is also made to alum, aqua fortis, aqua regia, bleach, caustic potash, chromic acid, ethanol and methanol (alcohol), glycol, gypsum, javelle (javel) water, Labarraque's solution, marine acid, muriatic acid, oil of vitriol, oleum, rock salt, salt acid, spirit of salt, sulphurated hydrogen and wood acid.

  7. Comparison of 304 or 316 and 304L or 316L type compositions and effect on corrosion resistance

    The carbon ranges of 'normal' and 'low' carbon 304 (304L) and 316 (316L) types are compared. The effect of carbon on intercystalline corrosion resistance and welding is also covered and why steel is often offered as a dual certified product. European grades 1.4301 1.4306 1.4307 1.4401 and 1.4404 are included in the comparisons.

  8. Comparison of grades 316 (1.4401) and 316L (1.4404/1.4432) to 316Ti (1.4571)

    Grade 316Ti is a 316 type stainless steel, stabilised with titanium to reduce the risk of intergranular corrosion (ICC). The 316L 1.4404 or 1.4432 grades can be considered as alternative choices. Under most conditions 316Ti and 316L are interchangeable, but the elevated temperature strength, corrosion resistance, machinability, cold-formability and polishing characteristics can affect the final choice of grade.

  9. Corrosion barriers for thermally insulated stainless steel

    Background information on the sources of chlorides within insulation materials is mentioned. The use of paint and aluminium foil barrier methods between the steel shell and insulation layer as a method of eliminating the risk of corrosion to the steel is also outlined.

  10. Corrosion Barriers for Thermally Insulated Stainless Steels (OGCP ref CP 4.4)

    Pitting and stress corrosion can result from moist thermal insulation where chlorides are present. This information sheet provides background information on the sources of chlorides within such insulation materials and describes two corrosion prevention methods. Paints (e.g. a high temperature silicone type) or 0.06 mm thick aluminium foil can be used as barriers between insulation layers and stainless steel. BS5970, BS5422 are cited in this information sheet.

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Office and Postal Address: BSSA, Regus, Blades Enterprise Centre, John Street, Sheffield S2 4SW

Registered Office: Pegasus House, 463A Glossop Road, Sheffield S10 2QD

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