There’s a new edition for AWS A5.8, “Specification for Filler Metals for Brazing and Braze Welding.” This new 2011 revision is correctly numbered AWS A5.8/A5.8M, since it includes both feet and inches and metric measurements (which must be used independently of one another). It has been adopted as an American National Standard.
This specification prescribes the requirements for the classification of filler metals for brazing and braze welding. The chemical composition, physical form, and packaging of more than 75 brazing filler metals are specified.
The filler metal groups described include aluminum, cobalt, copper, gold, magnesium, nickel, silver, and brazing filler metals for vacuum service. Information is provided concerning the liquidus, the solidus, the brazing temperature range, and general areas of application recommended for each filler metal.
Additional requirements are included for manufacture, sizes, lengths, and packaging. This specification also has a guide included as an appendix to provide a source of information concerning the classification system employed and the intended use of the filler metals for brazing and braze welding.
Over the years, AWS A5.8 has replaced A-A-50291 (Brazing Alloys, Aluminum and Magnesium, Filler Metal), QQ-B-655 (Brazing Alloys, Aluminum and Magnesium, Filler Metal), and partially replaced QQ-B-650 (Brazing Alloys, Copper, Copper-Zinc, and Copper-Phorphorus).
AWS A5.8/A5.8M and all AWS standards are available from Document Center Inc. on our website, www.document-center.com. Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com). We can assist you with all your standards requirements, including audits, notifications, and standards delivery.