Sometimes ist easier to search for uns n718 in the field std. The unified numbering system uns is a compositionbased system of commercial materials. Warrendale, pa prweb june 11, 20 the unified numbering system uns for metals and alloys provides a means of correlating internationally used metal and alloy numbering systems administered by societies, trade associations, and. The 11th edition of this reference for metal and alloy designations within the unified numbering system uns has been expanded to include 125 new listings and changes to 340 other entries. The unified numbering system uns was developed by astm and sae to correlate different numbering systems for commercial metals and alloys. New edition of uns book for metals and alloys available. Unified numbering system an overview sciencedirect topics.
The unified numbering system uns is an alloy designation system widely accepted in north america. With a description of the system and a cross index of chemically similar specifications. The unified numbering system, why designate a materials. Each uns number relates to a specific metal or alloy and. Theunified numbering system for metals and alloys uns provides a. The uns book does list north american standards in which the alloy appears.
The unified numbering system uns for metals and alloys is an alloy identification system which was jointly developed by the astm international formerly the american society for testing and materials and the society of automotive engineers to provide. Unified numbering system engineering automotive industry. The unified numbering system for metals and alloys uns provides a means of correlating many internationally used metal and alloy numbering systems administered by societies, trade associations, and individual users and producers of metals and alloys. Each metal is indicated by a letter that is followed. Metals and alloys in the unified numbering system 11th edition. An 18month feasibility study into developing a new system consisted of discussions with. The unified numbering system provides a quick and easy way to cross reference the many different numbering systems used to identify the thousands of metals. Unified numbering system free ebook download as pdf file. In the bookmovie, hank rearden has developed a brand new light. Unified numbering system uns for metals and alloys azom. Metals and alloys in the unified numbering system uns. It does not cross reference alloys with other identification systems.
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