scope:

This standard covers a variety of heat treatment procedures applicable to specific ferrous and nonferrous alloys.

Magnesium alloys are excluded from reference in this document.

This standard establishes a coding system for use in specifying heat treatment notes in drawings in abbreviated form that correlates with explicit engineering heat treatment requirements for the specified material.

intended Use:

The coding system established in this standard is intended to be used in the preparation of engineering drawings to specify material and heat treatment callouts in abbreviated format.