These are performed almost exclusively by the material manufacturers due to the fact that temperature ranges and holding time are critical and require careful controls, otherwise damage to the material can result from either too high or too low a furnace temperature. Material manufacturers have the metallurgical staffs to determine requirements.
However temperatures given in Table UHA-44 for 20 min/in. (20 min/25 mm) of thickness or 10 min, whichever is greater, followed by rapid cooling within the limits as specified in UHA 44.
-- However temperatures given in Table UHA-44 for 20 min/in. (20 min/25 mm) of thickness or 10 min, whichever is greater, followed by rapid cooling within the limits as specified in UHA 44.
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