A255
STANDARD METHOD FOR END-QUENCH TEST FOR HARDENABILITY OF STEEL
Publication Date: | 24 May 1967 |
Status: | inactive |
Page Count: | 12 |
ICS Code (Steels): | 77.080.20 |
scope:
This method covers the procedure for determining the hardenability of steel by the end-quench or Jominy test. The test consists of water quenching one end of a cylindrical test specimen l in. (25 mm) in diameter and measuring to what extent from the quenched end the steel hardens.
Hardenability is a measure of the depth to which steel will harden when quenched from its austenitizing temperature (see Appendix A1). It is measured quantitatively, usually by noting the extent or depth of hardening of a standard size and shape of test specimen in a standardized quench. In the end-quench test the depth of hardening is the distance along the specimen from the quenched end for a given degree of hardening.