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Distributor's Link Magazine Fall 2020 / Vol 44 No 1

72 THE DISTRIBUTOR’S

72 THE DISTRIBUTOR’S LINK ALL-PRO FASTENERS INC. 1916 Peyco Drive North, Arlington, TX 76001 TEL 1-800-361-6627 EMAIL sales@apf.com WEB www.apf.com FASTENERS & CORROSION: AVOIDING PROBLEMS IN ADVANCE Introduction Each year, the effects of corrosion on public and private assets represents an equivalent cost of 3.4% of global GDP, according to estimates. 1 This staggering cost affects the infrastructure, energy, manufacturing, transportation, construction, marine, and service industries, costing manufacturers, operating companies, service providers, contractors, investors, engineers, designers, customers, taxpayers, and others involved in local, national, and global economies. Corrosion engineers are engaged in the study and practice of corrosion management, providing guidance on the selection of cost-effective materials, coatings, and corrosion mitigation strategies. The work performed by these specialists helps to ensure the technical integrity of materials and installations. In determining appropriate materials, coatings, and corrosion management tactics, the specialist must assess each component of a system against a variety of factors, including environmental conditions, application requirements, estimated product/ system lifetime, and available mitigation methods. Fasteners – often the least expensive component in a system’s design – deserve particular attention in that (a) their failure can lead to serious expense and performance issues affecting the entire installation, and (b) this failure can largely be avoided or mitigated through the proper selection of materials, coatings, and platings, to help ensure desired performance over the life of the installation. This document will discuss some of the important considerations involved in the selection of fastener materials, designs, and coatings, in order to help design engineers, project managers, and purchasing personnel avoid potential problems that can result from fastener corrosion. Environmental Factors Environmental factors play an overriding role in the selection of materials and coatings to resist corrosion. A review of environmental factors is therefore critical to help avoid potential problems. This section discusses factors to consider in atmospheric, water, and soil environments. ATMOSPHERIC ENVIRONMENTS Contaminants, humidity, wind or water currents, pH level, and temperature are all elements of atmospheric environments that should be considered in the design and selection of fastener products. ¤ Contaminants - Rural environments are generally the least corrosive, with the principal corrodents being oxygen and moisture content. Urban environments, while similar to rural, may present sulfur dioxides and nitrous oxides from vehicle and domestic fuel emissions. Industrial environments may contain sulfur dioxides, chlorides, nitrates, and phosphates from processing facilities, as well as special instances of hydrogen sulfide, hydrogen chloride, and chlorine, which are highly corrosive to most metals. TECHNICAL ARTICLE CONTINUED ON PAGE 148

THE DISTRIBUTOR’S LINK 73 MID-WEST FASTENER ASSOCIATION PO Box 5, Lake Zurich, IL 60047 TOLL-FREE 1-800-753-8338 TEL 847-438-8338 EMAIL mwfa@ameritech.com WEB www.mwfa.net 2021 BOARD OF DIRECTORS & EVENTS SCHEDULE by Nancy Rich 2021 Board of Directors President George Hunt Brighton-Best International Vice President Matt Delawder SWD Inc. Treasurer Bob Baer Abbott Interfast Inc. Secretary Jake Davis BTM Directors Glen Brin - Innovative Components Inc. Rich Cavoto - Metric & Multistandard Components Paula Evitts - Avante Imports David Gawlik - Stanley Engineered Fastening Bobby Wegner - Beacon Fasteners and Components ASSOCIATION ARTICLE Alternates Jill Lewis - Integrated Packaging Wayne Wishnew - XL Screw Corporation Tabitha Herbst - Burlington Graphics 2021 Event Schedule February 2-4 Introduction to Fasteners - Virtual February 18 Federal Reserve Presentation - Virtual April 22 Education Program TBA Happy Hour August 16 75th Anniversary Dinner August 17 39th Annual MWFA Fastener Show August 18 68th Annual Golf Outing October 7 Social Event November 4 Scholarship Awards December 9 Holiday Party Check www.mwfa.net for more dates and details. MID-WEST FASTENER ASSOCIATION

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