Also known by tradenames MIC-6 Cast, K-100 Cast, and ALCA PLUS Cast, Cast Aluminum Tool & Jig Plate is produced from a fine-grain aluminum alloy which is free from internal stresses. This material is internally stable, which assures minimum movement during machining. Tool & Jig plate is a machined product, with flat surfaces and a surface finish equal to 32 micro-inches or better on both sides. It is readily machined with very little distortion. Using proper aluminum machining methods, tolerances in the thousandths can be maintained. Cast Aluminum Tool & Jig Plate is one-third as heavy as steel plate, which usually eliminates the need for heavy handling equipment for installation or set up, and reduces the load on ways and screws. It is highly resistant to corrosion, requiring no protective treatment. After the tool is obsolete, Tool & Jig plate has a higher salvage value than steels. Cast Aluminum Tool & Jig Plate is used where strength is not a requirement, but minimal machining distortion along with flatness is required. This material is non-heat treatable. Cast Aluminum Tool & Jig Plate has electrical conductivity of 36% of copper.