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Haynes 25 Bars are cobalt alloys that assemble at exceptionally high temperatures and possess good formability properties. Also, above 1800 degrees Fahrenheit, the bars have a 100-hour stress-rupture strength of 6000 to 7000 psi. These alloyed bars are immune to carburization and oxidation at 1900 degrees Fahrenheit. Haynes alloy 25 bars serve better in almost all the jet engine parts. These are also used in some of these include combustion chambers, turbine rings, turbine blades, afterburner parts and else.

Heat treatment: This grade bar is kept at 2250°F temperature and either in water quenched or rapid air cooled. After keeping it under the given temperature, it is prepared for cold working and ageing processes. These two processes are applied to the bars to implement their tensile strength and room temperatures. It is kept above 1800°F for cold working, and to increase its stress-rupture strength kept up to 1500°F temperature.

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