It is naturally assumed that less stress would take place on it when the metal is exposed to high temperatures for a shorter time than longer exposure would. Stainless steel 300-series alloys are particularly suggested as their continuous maximum use temperature limits are higher than their periodic, intermittent use temperature limits. Here are some examples of continuous and intermittent temperature limits of stainless steel: SS Grade If the basket is exposed for a short period interrupted by removal from the furnace to cool down it is termed intermittent exposure, while if it is exposed for a long time is termed continuous exposure.īased upon whether the exposure is continuous or intermittent a metal alloy will have different tolerances for exposure to high temperatures. When defining a metal for a particular furnace application, it’s important to understand whether the alloy is going to be exposed to the temperatures for a couple of seconds, a couple of minutes, or an hour or more. The answer is based on the amount of time, the basket will be exposed to the high temperatures as well as the precise temperature the application will reach,-which is why many metal alloys specify both an intermittent and continuous temperature use. Almost all Stainless steels grades are resistant to high-temperature-so which grade of SS will be the most suitable for high-temperature applications? It usually becomes difficult because the basket used to hold these parts through the superheated furnaces will be exposed to those temperatures themselves.īaskets used to carry components that pass through high temperatures got to be made from materials that can resist high temperatures. Whether annealing, hot-flecked powder coating, or fumigating whatever may be the process, continuous exposure to furnace-like temperatures is very general. Today most manufacturing applications make use of hot furnaces to finish the handling of metal components.
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