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Stress relieve 12% Silicion Aluminium

Stress relieve 12% Silicion Aluminium

Stress relieve 12% Silicion Aluminium

(OP)
Does 530C then turn the oven off sound good to you ?
I think thats it

Thanks
123Cat

RE: Stress relieve 12% Silicion Aluminium

Al casting alloys are not usually stress relieved.  One method is to heat to a minimum temperature of 345 C for 2-4 hours.  Higher temperatures will result in more complete stress relief.  Be careful of incipient melting with a 12% Si alloy if you use 530 C.

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