Engineering Materials Information
  Searches:  | Main Search Page

Aluminum Alloy Heat Treatment Temper Designations

The physical properties exhibited by aluminum alloys are significantly influenced by the treatment of the sample. A standardized system has been developed to designate these treatments. The aluminum alloy data sheets in MatWeb will generally have a temper designation connected with them to indicate the treatment used to produce the properties listed.

Basic Aluminum Heat Treatment Designations

Heat Treating T Temper Codes

Additional digits may be used after the first T temper digit to indicate subsequent stress relieving by processes such as stretching, compressing, or a combination of the two.

H Temper Strain Hardening Codes

The second digits (required) after the first H temper digit indicates the level of strain hardening and is based on the minimum ultimate tensile strength obtained. The third digit (optional) is a variation of the two digit temper.

In addition to heat treating related attributes such as aging temperature, annealing temperature, and solution temperature, MatWeb has a complete list of mechanical, electrical and thermal properties and composition specifications for aluminum alloys. Other aluminum topics in MatWeb:

The FlexTech Materials Registry is a product of MatWeb, LLC. The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2021 by MatWeb, LLC. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.
Engineering Materials Information    2020 Kraft Drive, Blacksburg, VA 24060 USA. Phone (540) 552-5300