APPROVED VENDOR 6ALY2 U-Channel Corrosion Resistant Aluminum Alloy Type 6063 Leg Length 1 Base Width 4 Wall Thickness 0.125 Length 8 ft. Mill Finish T52 Temper Leg Length Tolerance +/-0.012 Base Width Tolerance +/-0.034 Wall Thickness Tolerance +/-0.007 Length Tolerance +/-1.000 Tensile Strength (PSI) 27 000 Typical Yield Strength (PSI) 21 000 Typical Hardness 60 Hardness Scale BHN Standards ASTMB221Approved Vendor