Aluminum 6061-T4; 6061-T451

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Aluminum 6061-T4; 6061-T451
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 6000 Series Aluminum Alloy
Material Notes:	Information provided by Alcoa and the references. 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. 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, AD-33 (Russia); AA6061-T451; AA6061-T4, UNS A96061; ISO AlMg1SiCu; Aluminum 6061-T451; Aluminium 6061-T4; Aluminium 6061-T451; Al6061-T4
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Physical Properties	Original Value	Comments

Density	2.70 g/cc	AA; Typical

Mechanical Properties	Original Value	Comments
Hardness, Brinell	65	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	88	Converted from Brinell Hardness Value
Hardness, Vickers	75	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	35.0 ksi	AA; Typical
Tensile Strength, Yield	21.0 ksi	AA; Typical
Elongation at Break	22 % @Thickness 1.59 mm	AA; Typical
	25 % @Diameter 12.7 mm	AA; Typical
Modulus of Elasticity	10000 ksi	AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poissons Ratio	0.33	Estimated from trends in similar Al alloys.
Fatigue Strength	14000 psi @# of Cycles 5.00e+8	completely reversed stress; RR Moore machine/specimen
Machinability	50 %	0-100 Scale of Aluminum Alloys
Shear Modulus	26.0 GPa	Estimated from similar Al alloys.
Shear Strength	24.0 ksi	AA; Typical

Electrical Properties	Original Value	Comments
Electrical Resistivity	26.0 ohm-cir-mil/ft @Temperature 20.0 °C	AA; Typical

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	1070 BTU-in/hr-ft²-°F	AA; Typical at 77°F
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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MA6061T4 / 9390

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