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. 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. The unified numbering system uns is an alloy designation system widely accepted in north america. This book provides a means of correlating many internationally used metal and alloy numbering systems currently administered by societies, trade associations. 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. The unified numbering system for metals and alloys uns provides a means of correlating many internationally used metal and alloy numbering systems currently administered by societies, trade associations, and those individual users and producers of metals and alloys. Unified numbering system free ebook download as pdf file.
Each uns number relates to a specific metal or alloy and. The unified numbering system provides a quick and easy way to crossreference the many different numbering systems used to identify the thousands of metals. New edition of uns book for metals and alloys available. The unified numbering system, why designate a materials. The unified numbering system uns is a compositionbased system of commercial materials. An 18month feasibility study into developing a new system consisted of discussions with. Metals and alloys in the unified numbering system uns. Unified numbering system uns for metals and alloys azom.
Jointly developed by astm and sae, this new edition provides an overall designation system for thousands of metals and alloys in commercial use. Theunified numbering system for metals and alloys uns provides a. 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. Sometimes ist easier to search for uns n718 in the field std. With a description of the system and a cross index of chemically similar specifications. In the bookmovie, hank rearden has developed a brand new light. The unified numbering system for metals and alloys uns provides a means of correlating many internationally used metal and alloy numbering systems. The unified numbering system uns is an alloy designation system widely accepted in north. Alloys in the unified numbering system, published jointly by astm and sae, lists over 5000 uns des ignations in the recently published ninth edition. Unified numbering system engineering automotive industry. Each metal is indicated by a letter that is followed. Metals and alloys in the unified numbering system 11th edition. The uns book does list north american standards in which the alloy appears.
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