Aluminum 6061-T6; 6061-T651

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Aluminum 6061-T6; 6061-T651
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 6000 Series Aluminum Alloy
Material Notes:	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. Applications: 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; bike frames. 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-T651, UNS A96061; ISO AlMg1SiCu; Aluminium 6061-T6, AD-33 (Russia); AA6061-T6; 6061T6, ISO AlMg1SiCu; Aluminium 6061-T651, AD-33 (Russia); AA6061-T651
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Physical Properties	Original Value	Comments

Density	2.70 g/cc	AA; Typical

Mechanical Properties	Original Value	Comments
Hardness, Brinell	95	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	120	Converted from Brinell Hardness Value
Hardness, Rockwell A	40	Converted from Brinell Hardness Value
Hardness, Rockwell B	60	Converted from Brinell Hardness Value
Hardness, Vickers	107	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	45.0 ksi	AA; Typical
	24.0 MPa @Temperature 371 °C
	32.0 MPa @Temperature 316 °C
	51.0 MPa @Temperature 260 °C
	131 MPa @Temperature 204 °C
	234 MPa @Temperature 149 °C
	290 MPa @Temperature 100 °C
	310 MPa @Temperature 24.0 °C
	324 MPa @Temperature -28.0 °C
	338 MPa @Temperature -80.0 °C
	414 MPa @Temperature -196 °C
Tensile Strength, Yield	40.0 ksi	AA; Typical
	12.0 MPa @Strain 0.2 %, Temperature 371 °C
	19.0 MPa @Strain 0.2 %, Temperature 316 °C
	34.0 MPa @Strain 0.2 %, Temperature 260 °C
	103 MPa @Strain 0.2 %, Temperature 204 °C
	214 MPa @Strain 0.2 %, Temperature 149 °C
	262 MPa @Strain 0.2 %, Temperature 100 °C
	276 MPa @Strain 0.2 %, Temperature 24.0 °C
	283 MPa @Strain 0.2 %, Temperature -28.0 °C
	290 MPa @Strain 0.2 %, Temperature -80.0 °C
	324 MPa @Strain 0.2 %, Temperature -196 °C
Elongation at Break	17 % @Temperature -28.0 °C
	17 % @Temperature 24.0 °C
	18 % @Temperature -80.0 °C
	18 % @Temperature 100 °C
	20 % @Temperature 149 °C
	22 % @Temperature -196 °C
	28 % @Temperature 204 °C
	60 % @Temperature 260 °C
	85 % @Temperature 316 °C
	95 % @Temperature 371 °C
	12 % @Thickness 1.59 mm	AA; Typical
	17 % @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.
Notched Tensile Strength	324 MPa	2.5 cm width x 0.16 cm thick side-notched specimen, K_t = 17.
Ultimate Bearing Strength	607 MPa	Edge distance/pin diameter = 2.0
Bearing Yield Strength	386 MPa	Edge distance/pin diameter = 2.0
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
Fracture Toughness	29.0 MPa-m½	K_IC; TL orientation.
Machinability	50 %	0-100 Scale of Aluminum Alloys
Shear Modulus	26.0 GPa	Estimated from similar Al alloys.
Shear Strength	30.0 ksi	AA; Typical

Electrical Properties	Original Value	Comments
Electrical Resistivity	24.0 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	1160 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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MA6061T6a / 192050

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