Stress Relieving AMPCOLOY® 89

AMPCOLOY® 89 can be stress relieved using the following procedure: heat to 280°C, hold for 1.5 hours per 25 mm of material thickness up to a maximum of 4 hours, then cool in air. Stress relieving should be performed after rough machining, with sufficient material margin left for any warpage that may occur, and completed just before finish machining begins.