Processing: Excellent Machinability, Weldability, and High Strength. Welding: 6061 can be readily welded using all the common welding techniques.
Forging: 6061 can be forged at temperatures in the range of 750°F to 900°F. Hot working may be done in the temperature range of 500°F to 700°F.
Heat Treating: Solution heat treat at 990°F for adequate time to allow for thorough heating and then water quenched. Precipitation hardening is done at 320°F for 18 hours and air cool, followed by 350°F for 8 hours and air cooled.
Annealing: Should be done at 775°F for at 2 to 3 hours at temperature, followed by controlled cooling at 50°F per hour down to 500°F, then air cooled.
Aging: The aging precipitation heat treatment is done at 350°F for 8 hours, followed by air cooling. This produces the T6 temper.
6061 Aluminum Round Bar (Alloy: 6061 T651) / Diameter: 4" / Length: 4" / Dimensional Tolerance: Diameter: +0.034" (-0.000"), Cut Length: +0.063" (-0.000") / Tensile Strength: 45 kSI / Yield Strength: 40-42 kSI / Shear Strength: 31 kSI / Brinell Hardness: 95 / Alloy Composition (% of weight): Al 95.8-98.6, Cr 0.04-0.35, Fe 0.7 Max, Mg 0.8-1.2, Mn 0.15 Max, Si 0.4-0.8, Ti 0.15 Max, Zn 0.25 Max. Other elements no more than 0.05% each, 0.15% total. / NOTE: This is raw stock material. Cuts are not finished or smoothed in anyway.
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