Aluminum cast 7075 equivalent

[elecoil]

I have a machined from block explosion proof box made out of 7075 aluminum, I would like to have it cast instead of machined, what kind of alloy will render similar properties to the machined out of stock 7075 aluminum?

 

[swall]

201 cast alloy would be the best you would be able to do. But,you will come up about 10ksi short on both yield and tensile compared to 7075-T73. If you are talking 7075-T6, you will be about 20ksi short with the 201 casting alloy. The elongation of the cast material will be about half that of the wrought 7075.