A freezing treatment - may be used between the first and second tempers. Freezing treatments help to attain maximum hardenability and must always be
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So the treatment after machining would be:
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Hardness check: file should be sliding over the edge wo getting grip
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When tempering at 400-750?F (200-400?C), freezing treatments may be necessary to minimize retained austenite.
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Now since you didn't forge or fire weld it, meaning you do stock removal only, you can expect the steel to be annealed correctly.
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tempers. A freezing treatment may be added between tempers.
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NOTE: For optimum stress relieving, CPM S30V may be tempered at 1000-1025?F (540-550?C). Tempering in this range may result in a slight decrease in
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Accademia della crusca
