Aluminum 6061-T8

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Aluminum 6061-T8
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 6000 Series Aluminum Alloy
Material Notes:	Weldability = A; Stress Corrosion Cracking Resistance = A; General Corrosion Resistance = B (A = best; E = worst). General 6061 characteristics and uses: Excellent joining characteristics, good acceptance of applied coatings. Combines relatively high strength, good workability, and high resistance to corrosion; widely available. The T8 and T9 tempers offer better chipping characteristics over the T6 temper. Uses: Aircraft fittings, camera lens mounts, couplings, marines fittings and hardware, electrical fittings and connectors, decorative or misc. hardware, hinge pins, magneto parts, brake pistons, hydraulic pistons, appliance fittings, valves and valve parts. Some data provided by Alcoa. Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN. Composition Notes: Composition information provided by the Aluminum Association and is not for design.
Key Words:	al6061, Aluminium 6061-T8; UNS A96061; ISO AlMg1SiCu, AD-33 (Russia); AA6061-T8; Al6061-T8
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Physical Properties	Original Value	Comments

Density	2.70 g/cc	AA; Typical

Mechanical Properties	Original Value	Comments
Hardness, Brinell	120	500 kg load/10 mm ball
Hardness, Knoop	150	Estimated from Brinell
Hardness, Rockwell A	46.8	Estimated from Brinell
Hardness, Rockwell B	75	Estimated from Brinell
Hardness, Vickers	136	Estimated from Brinell
Tensile Strength, Ultimate	>= 310 MPa
Tensile Strength, Yield	>= 276 MPa
Elongation at Break	8.0 %
Modulus of Elasticity	69.0 GPa	Average of Tension and Compression. In Al alloys, the compressive modulus is typically 2% greater than the tensile modulus
Poissons Ratio	0.33	Estimated from trends in similar Al alloys.
Machinability	50 %	0-100 Scale (A=90; B=70; C=50; D=30; E=10)
Shear Modulus	26.0 GPa	Estimated from similar Al alloys.
Shear Strength	185 MPa	Estimated from ultimate tensile strength

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000370 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	13.1 µin/in-°F @Temperature 20.0 - 100 °C	AA; Typical; average over range
	25.2 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.896 J/g-°C
Thermal Conductivity	170 W/m-K
Melting Point	1080 - 1205 °F	AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness. Eutectic melting can be eliminated by homogenization.
Solidus	1080 °F	AA; Typical
Liquidus	1205 °F	AA; Typical

Processing Properties	Original Value	Comments
Solution Temperature	985 °F
Aging Temperature	320 °F	Rolled or drawn products; hold at temperature for 18 hr
	350 °F	Extrusions or forgings; hold at temperature for 8 hr

Component Elements Properties	Original Value	Comments
Aluminum, Al	95.8 - 98.6 %	As remainder
Chromium, Cr	0.04 - 0.35 %
Copper, Cu	0.15 - 0.40 %
Iron, Fe	<= 0.70 %
Magnesium, Mg	0.80 - 1.2 %
Manganese, Mn	<= 0.15 %
Other, each	<= 0.05 %
Other, total	<= 0.15 %
Silicon, Si	0.40 - 0.80 %
Titanium, Ti	<= 0.15 %
Zinc, Zn	<= 0.25 %

References for this datasheet.

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MA6061T8 / 9392

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