Precise heat treating is critical to the production of quality castings. Our furnaces are certified IAW API 6A Annex M, AMS-2750, & AMS-H-6875. We meet most aerospace, petrochemical, nuclear and commercial requirements. Delta can homogenize and solution anneal at temperatures up to 2200 F/ 1205 C. We can normalize, temper, age, precipitation harden and stress relieve to satisfy our customers’ requirements.
Cooling rates and methods are as important as heating and hold times to yield the desired mechanical properties. Castings can be furnace cooled, air, water, or polymer quenched per specification. Delta uses King Portable Brinell Testers to verify hardness at multiple locations on castings to ensure uniformity. Our hardness testers are calibrated IAW ASTM E110 and ASTM E10.