Aluminum is in the news as Ford is using the metal to lighten the frame of the F-150 truck line. If you use the material, you’ll want to know that the entire H35 series of standards on Aluminum has been reviewed. We’ll tackle the revisions of the various parts of the standard series this week. First we’ll discuss the new ANSI H35.1, “American National Standard Alloy and Temper Designation System for Aluminum.” The new 2013 Edition just released this month is a consolidated edition. As you probably know, it merges the information from the old ANSI H35.1 and ANSI H35.1(m) documents.
Originally the publication (back in 1957) was a designation system for wrought aluminum alloys. Over time, the standard has been expanded to include the U.S. temper designation system. It has been used as the basis for the ISO 2107, “Aluminium and Aluminium Alloys – Wrought Products -Temper Designations.” And there are also similarities between the U.S. standard and EN 515, “Aluminium and Aluminium Alloys. Wrought Products. Temper Designations,” the European norm. However, you will still find differences in designations from country to country.
The previous revision of the ANSI H35.1 was in 2009, so you’re probably wondering what’s changed in this new edition. First, the wrought alloy designation system has been expanded. The requirement that an alloy variation be from a jurisdiction other than the U.S. has been eliminated. There’s a new footnote that requires individual limits for the combination of elements in excess of 0.10%. And there’s a new definition for O2 temper designation as a reserved temper to demonstrate response to annealing.
As I say, the balance of the H35 series has also been reviewed, with some parts undergoing revision and other reaffirmed. If you need copies of the new documents, you can order them at our Document Center webstore at www.document-center.com. Or you can contact our staff by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com). You’ll be pleased to know that your purchase comes with our no-charge notification service, providing you with timely updates by email when your standards are modified. Thousands of companies rely on Document Center — Make us your Standards Experts!
