6061 Aluminum Components

The contractor shall perform non-recurring engineering to produce 6061-T6 alloy meeting the chemical composition in Table I (low impurities including Gallium, Lithium, Cadmium, Boron, Cobalt), then make at least 5 tons of alloy. After impurity analysis is accepted, the contractor shall fabricate intermediate products per Table II: 10 pieces of 12 ft x 0.125 dia round stock (18 lb each), 4 pieces of 12 ft x 0.75 dia round stock (255 lb each), 100 pieces of 12 ft x 3.5 in x 0.25 in rectangular bar stock (1260 lb each), 25 pieces of 12 ft x 3.5 in x 1.00 in rectangular bar stock (1260 lb each), 20 pieces of 12 ft x 4.5 in x 3.5 in rectangular bar stock (4536 lb each), 110 sheets of 4 ft x 8 ft x 12 gauge (3960 lb total), and 600 sheets of 4 ft x 8 ft x 18 gauge (10,800 lb total). The contractor must provide impurity analysis, tensile test results, certificates of conformance, inspection reports, and representative samples. All sheet and plate edges shall be produced by shearing or sawing, and no welding or weld repair is permitted. Packaging shall be in 4,000 lb maximum fiber-enclosed skids with wooden sides and battens.