formula for smithed items?

[Oddity]

I know that anvil ql, smithy's hammer ql and your Smithing have a part in it (Smithing is just softcap,IIRC) and I've heard your str does too, but I'm wondering what the exact formula for something like a Bronze Plate would be. And the formula for crafting a Smithy's Hammer... would that be (average of the materials + anvil ql) / 2 ?

edit: loftar told me that it's 50% materials, 25% anvil ql, 25% smithy's hammer ql, and softcapped by sqrt(str * smithing)