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Old 05-27-2015, 06:08 AM
WBE WBE is offline
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Join Date: Feb 2009
Posts: 484
01 requires a higher temper heat than simple steels, in order to use it for springs. It is not the best choice if you do not have an oven. To harden, it should be hardened as you would a blade, with a timed soak, then tempered at least 75? to 100? higher than for simple steels. Simple 10xx steels need a temper at no less than 700?, and up to 750?. If you are going by color, that is in the neutral range. 01 requires more. With the short travel of a folder spring, you might get away with lower temps, but you are taking a risk in long term use.
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