6061-T4 AND -T6 TREAD SHEET TECHNICAL DATA C102 (Diamond) Pattern Strength, skid resistance, and durability are the major attributes of Alcoa’s 6061-T6 tread sheet and plate. A wide range of sheet and plate thicknesses are offered as standard products and are available in a variety of widths and lengths. Strength — 6061 tread sheet and plate is heat treated and aged to the -T6 temper to provide the highest strength standard tread product available. This property makes 6061 tread ideally suited for consideration in applications where heaviest loading is involved. Durability — Long-term performance in loading ramp, trench cover, dock board, dock plate, flooring, stair tread, and other similar applications has established 6061-T6 tread as a preferred product. High strength is combined with corrosion resistance and light weight to highlight 6061 compatibility with many applications. Skid Resistance — The raised diamond tread design provides improved footing where needed. Improved footing is maintained due to high durability. C H E M I C A L C O M P O S I T I O N (Weight Percent) Maximum Unless Shown As A Range Si 0.4-0.8 Fe 0.7 Cu 0.15-0.4 Mn 0.15 Mg 0.8-1.2 Cr 0.4-0.35 M E C H A N I C A L Minimum 6061-T6 T4 Ultimate Strength KSI 42 30 P H Y S I C A L Thickness .100 .125 .156 .188 .250 Zn 0.25 Others Each Total 0.05 0.15 TI 0.15 P R O P E R T I E S Yield Strength KSI 35 16 Elongation % in 2 inches 6 14 C H A R A C T E R I S T I C S Thickness Button Tolerance Inches Pattern Height, Plus Minus Inches (Minimum) .008 .012 .040 .010 .015 .040 .011 .019 .040 .013 .023 .040 .018 .030 .040 Thickness Tolerance Inches Thickness Plus Minus .375 .025 .045 .500 .035 .060 .625 .044 .075 .750 .052 .090 Surface Finish: Heat-Treated Mill Finish Formability: Fair Weldability: Good Width Tolerance: Plus 3/8 inch Widths Available: .100 - .125 82 inches .189 - .500 72 inches .126 - .188 82 inches .501 - .750 72 inches Length Tolerance: Lateral Bow Tolerance: Up to 144 inches – plus 3/8 inch Over 144 inches thru 240 inches – plus 7/16 inch Over 240 inches – plus 1/2 inch 1/8 Aluminum Remainder Button Pattern Height, Inches (Minimum) .040 .040 .040 .040 inch in any 10 feet Squareness Tolerance: Length Max. Difference in Diagonal Up to 144 inches 3/8 Over 144 thru 240 inches 7/16 Over 240 inches 1/2 inch inch inch Camber of Pattern Line Tolerance: Width Length To 48 inches Over 48 inches Up thru 24 inches 1/8 inch 1/8 inch Over 24 inches thru 72 inches 1/2 inch 1/2 inch Over 72 inches thru 144 inches 3/4 inch 1 inch Over 144 inches 1 inch 11/2 inch PRODUCT SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALCOA MILL PRODUCTS P.O. BOX 8025 • BETTENDORF, IOWA 52722 • (800) 523-9596 • www.millproducts-alcoa.com February 2005