ASTM D4340 Heat-Transfer Test Specimen
Cast aluminum test specimen (also known as a heat-transfer specimen) used in ASTM D4340 (Corrosion of Cast Aluminum Alloys in Engine Coolants Under Heat-Rejecting Conditions). The metal test specimen is 2.6" in diameter and 1/2" thick and has two thermocouple holes drilled into one edge. The material is 319 cast aluminum (UNS A03190). ASTM D4340 is run in duplicate; two test specimens are required.
Customized test specimens for modified versions of this test method are available on request.