Ams 2759 2 Site

Directly after quenching, parts are brittle. Tempering involves reheating the steel to a lower temperature to achieve the desired balance of strength and toughness. AMS 2759/2 mandates a minimum of two tempering cycles for steels treated to high strength levels (like 300M) to ensure the transformation of retained austenite. 3. Atmospheric Control (Pyrometry)

Note: Exact values vary by alloy and customer procurement specification. ams 2759 2