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Kiln annealing of gold


Need on the temperature (F.) for electric kiln annealing
gold 18K or above, how long should the temperature be held before
removing from kiln for quenching? I am trying to anneal wire (flat 94
x 28 g. four feet long) rolled into a coil and bound with copper
wire. I ordered dead soft but received metal somewhat like a watch
spring in hardness.

Thanks for advice Sally-Heath