6061-T4 AND -T6 TREAD SHEET TECHNICAL DATA C300 Pattern In response to marketplace requirements for the ultimate in traction, Alcoa has introduced the C300 tread sheet product. The .065 inch minimum button height is unmatched by any other tread product. Alloy 6061 provides strength, durability, ease of welding, corrosion resistance, and economy for a unique package ideally suited for the most demanding high strength flooring applications. Button Height — Only the Alcoa C300 tread pattern offers a .065 inch minimum button height for maximum traction. Durability — The C300 pattern was developed specifically for the most challenging flooring applications. ASTM wear resistance testing has confirmed unmatched durability relative to other tread sheet products tested. Skid Resistance — The unmatched button height exhibited by the C300 pattern was developed specifically to optimize footing. Corrosion Resistance — 6061 alloy provides traditionally excellent corrosion resistance in typical applications. Weldability — 6061 offers unique compatibility in applications where ease of welding and weld strength are important. 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 Cr 0.8-1.2 0.04-0.35 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 Yield Strength KSI 35 16 Heat-Treated Mill Finish Formability: Fair Weldability: Good Width Tolerance: Plus 3/8 inch Widths Available: .100 -.125 62 inches .126 -.188 Elongation % in 2 inches 6 14 82 inches Min. Button Pattern Height, Inches (Minimum) .065 .065 .065 .065 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 C H A R A C T E R I S T I C S Surface Finish: Lateral Bow Tolerance: Others Each Total 0.05 0.15 TI 0.15 P R O P E R T I E S Thickness Tolerance Inches Plus Minus .008 .012 .010 .015 .011 .019 .013 .023 Thickness .100 .125 .156 .188 Length Tolerance: Zn 0.25 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