ALUMINUM RECTANGULAR TUBE 6063, ALUMINUM, 6063, T52, RECTANGLE, 12 IN OVERALL LENGTH, 1 3/4 IN INSIDE WIDTH, 1 1/4 IN INSIDE HEIGHT, 2 IN OUTSIDE WIDTH, 1 1/2 IN OUTSIDE HEIGHT, 0.125 IN WALL THICKNESS, WALL THICKNESS TOLERANCE +/-0.015 IN, FABRICATION EXTRUDED, HEAT TREATMENT TEMPERED, HEAT TREATABLE YES, MECHANICAL FINISH MILL, YIELD STRENGTH 21,000 PSI, TENSILE STRENGTH 27,000 PSI, 60 BRINELL HARDNESS, B60 ROCKWELL HARDNESS, STANDARDS AMS QQ-A