Solar Atmospheres of Western Pennsylvania, Hermitage, Pa., recently thermally processed in vacuum a 410 stainless steel fabrication 90 in. high by 75 in. wide and weighing 1060 lb. The finish-machined weldment is an exhaust duct used exclusively for testing jet engines. This intricate piece was vacuum hardened and tempered per AMS 2759/5D, Type 4 Class A to HRC 25-33.
In order to meet this stringent specification, the part was thermocoupled in both the thin and heavy sections of the weldment. The resulting hardness was a consistent HRC 30 on all welded components.
Richard Oswald, Sales Engineer from Solar’s customer Commercial Metal Fabricators, explains, ”We had a very complicated and time sensitive project for the military. Solar worked with us and our customer to ensure the heat treat codes, specs and processes were the correct and best methods to use. The part was run through their shop in a timely manner and delivered as promised. I would like to thank the people at Solar Atmospheres for their professional help and input.”
Robert Hill, President of Solar Atmospheres of Western Pennsylvania adds, “We are glad that our extra-large furnace capability could assist our customer with their out of the ordinary sized part.
