Alloy C276, also named as Hastelloy C-276/UNS N10276, mill products are furnished in the solution heat-treated condition. This requires the material to be heated to a range of 1900-2100 °F (1040-1150 °C) and rapidly cooled.
For optimal corrosion resistance, Alloy C276 should be cooled from solution heat-treatment temperatures to black in two minutes or less.
Stress relief heat treatments are not effective with this alloy and a full anneal should be conducted where stress relief heat treatment of other materials would be considered.
Material designated for heat treatment should be clean and free of grease, oils and other potential sources of carbon.
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