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Missed one. It must have snuck by you in the last update.

AlloyRecipe Ore Source
Bronze bar Tin CopperRocky Mountain
Shakudo bar Copper GoldRocky Mountain
Tool Steel bar Tungsten IronRocky Mountain
Antanium bar Copper Iron Gold Rocky Mountain
Soldering Iron Tin LeadRocky M & Frozen G
WNiFe bar Tungsten Iron NickelRocky M & Frozen G
WNiCu bar Copper TungstenNickelRocky M & Frozen G
Monel Metal bar Copper NickelFrozen G & any
Nickel Steel bar Iron NickelFrozen Ground
Mu Metal bar Iron Nickel NickelFrozen Ground
Nisil bar Silicon NickelFrozen Ground
German Silver bar Copper Zinc NickelFrozen G & Sand L
Silumin bar AluminiumSiliconFrozen G & Sand L
Duralumin bar Copper AluminiumSand Land
Delta Metal bar Copper Iron Zinc Sand Land
Sterling Silver barSilver CopperSand Land
Gunmetal bar Tin Copper Zinc Sand L & Rocky M
Electrum bar Silver GoldSand L & Rocky M
Goloid bar Silver Copper Gold Sand L & any 
Rocky MountainCoalSulfurCopperTin IronTungstenGold Titanum
Sand Land CoalSulfurCopperZincIronAluminiumSilverTitanum
Frozen Ground NickelLeadIronLithum Gold Silicon

Also, now you can make slag with Titanium and Lithium too!