This specification covers the procedure for through-hardening and related heat treatments of carbon, low-alloy, and specialty steel parts to produce specified mechanical properties within the capability of each respective steel. Heat treating processes such as induction hardening, flame hardening, carburizing, nitriding, austempering, and martempering are recognized processes but are not covered by this specification.
1. SCOPE: 1.1 Type: This specification covers high quality holts and screws made of a low-alloy, heat resistant steel. 1. 2 Application: Primarily for joining parts where high strength up to 900'F (480'C) is reqnired.