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, UNS A96061; ISO AlMg1SiCu; Aluminium 6061-T6, AD-33 (Russia); AA6061-T6; 6061T6, UNS A96061; ISO AlMg1SiCu; Aluminium 6061-T651, AD-33 (Russia); AA6061-T651
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Physical PropertiesMetricEnglishComments
Density 2.70 g/cc0.0975 lb/in³AA; Typical
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 9595AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop 120120Converted from Brinell Hardness Value
Hardness, Rockwell A 4040Converted from Brinell Hardness Value
Hardness, Rockwell B 6060Converted from Brinell Hardness Value
Hardness, Vickers 107107Converted from Brinell Hardness Value
Tensile Strength, Ultimate 310 MPa45000 psiAA; Typical
 24.0 MPa
@Temperature 371 °C
3480 psi
@Temperature 700 °F
 32.0 MPa
@Temperature 316 °C
4640 psi
@Temperature 601 °F
 51.0 MPa
@Temperature 260 °C
7400 psi
@Temperature 500 °F
 131 MPa
@Temperature 204 °C
19000 psi
@Temperature 399 °F
 234 MPa
@Temperature 149 °C
33900 psi
@Temperature 300 °F
 290 MPa
@Temperature 100 °C
42100 psi
@Temperature 212 °F
 310 MPa
@Temperature 24.0 °C
45000 psi
@Temperature 75.2 °F
 324 MPa
@Temperature -28.0 °C
47000 psi
@Temperature -18.4 °F
 338 MPa
@Temperature -80.0 °C
49000 psi
@Temperature -112 °F
 414 MPa
@Temperature -196 °C
60000 psi
@Temperature -321 °F
Tensile Strength, Yield 276 MPa40000 psiAA; Typical
 12.0 MPa
@Strain 0.200 %,
Temperature 371 °C
1740 psi
@Strain 0.200 %,
Temperature 700 °F
 19.0 MPa
@Strain 0.200 %,
Temperature 316 °C
2760 psi
@Strain 0.200 %,
Temperature 601 °F
 34.0 MPa
@Strain 0.200 %,
Temperature 260 °C
4930 psi
@Strain 0.200 %,
Temperature 500 °F
 103 MPa
@Strain 0.200 %,
Temperature 204 °C
14900 psi
@Strain 0.200 %,
Temperature 399 °F
 214 MPa
@Strain 0.200 %,
Temperature 149 °C
31000 psi
@Strain 0.200 %,
Temperature 300 °F
 262 MPa
@Strain 0.200 %,
Temperature 100 °C
38000 psi
@Strain 0.200 %,
Temperature 212 °F
 276 MPa
@Strain 0.200 %,
Temperature 24.0 °C
40000 psi
@Strain 0.200 %,
Temperature 75.2 °F
 283 MPa
@Strain 0.200 %,
Temperature -28.0 °C
41000 psi
@Strain 0.200 %,
Temperature -18.4 °F
 290 MPa
@Strain 0.200 %,
Temperature -80.0 °C
42100 psi
@Strain 0.200 %,
Temperature -112 °F
 324 MPa
@Strain 0.200 %,
Temperature -196 °C
47000 psi
@Strain 0.200 %,
Temperature -321 °F
Elongation at Break  17 %
@Temperature -28.0 °C
17 %
@Temperature -18.4 °F
 17 %
@Temperature 24.0 °C
17 %
@Temperature 75.2 °F
 18 %
@Temperature -80.0 °C
18 %
@Temperature -112 °F
 18 %
@Temperature 100 °C
18 %
@Temperature 212 °F
 20 %
@Temperature 149 °C
20 %
@Temperature 300 °F
 22 %
@Temperature -196 °C
22 %
@Temperature -321 °F
 28 %
@Temperature 204 °C
28 %
@Temperature 399 °F
 60 %
@Temperature 260 °C
60 %
@Temperature 500 °F
 85 %
@Temperature 316 °C
85 %
@Temperature 601 °F
 95 %
@Temperature 371 °C
95 %
@Temperature 700 °F
 12 %
@Thickness 1.59 mm
12 %
@Thickness 0.0625 in
AA; Typical
 17 %
@Diameter 12.7 mm
17 %
@Diameter 0.500 in
AA; Typical
Modulus of Elasticity 68.9 GPa10000 ksiAA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Notched Tensile Strength 324 MPa47000 psi2.5 cm width x 0.16 cm thick side-notched specimen, Kt = 17.
Ultimate Bearing Strength 607 MPa88000 psiEdge distance/pin diameter = 2.0
Bearing Yield Strength 386 MPa56000 psiEdge distance/pin diameter = 2.0
Poissons Ratio 0.330.33Estimated from trends in similar Al alloys.
Fatigue Strength 96.5 MPa
@# of Cycles 5.00e+8
14000 psi
@# of Cycles 5.00e+8
completely reversed stress; RR Moore machine/specimen
Fracture Toughness 29.0 MPa-m½26.4 ksi-in½KIC; TL orientation.
Machinability 50 %50 %0-100 Scale of Aluminum Alloys
Shear Modulus 26.0 GPa3770 ksiEstimated from similar Al alloys.
Shear Strength 207 MPa30000 psiAA; Typical
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000399 ohm-cm
@Temperature 20.0 °C
0.00000399 ohm-cm
@Temperature 68.0 °F
AA; Typical
 
Thermal PropertiesMetricEnglishComments
CTE, linear  23.6 µm/m-°C
@Temperature 20.0 - 100 °C
13.1 µin/in-°F
@Temperature 68.0 - 212 °F
AA; Typical; average over range
 25.2 µm/m-°C
@Temperature 20.0 - 300 °C
14.0 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.896 J/g-°C0.214 BTU/lb-°F
Thermal Conductivity 167 W/m-K1160 BTU-in/hr-ft²-°FAA; Typical at 77°F
Melting Point 582 - 651.7 °C1080 - 1205 °FAA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater; Eutectic melting can be completely eliminated by homogenization.
Solidus 582 °C1080 °FAA; Typical
Liquidus 651.7 °C1205 °FAA; Typical
 
Processing PropertiesMetricEnglishComments
Solution Temperature 529 °C985 °F
Aging Temperature 160 °C320 °FRolled or drawn products; hold at temperature for 18 hr
 177 °C350 °FExtrusions or forgings; hold at temperature for 8 hr
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 95.8 - 98.6 %95.8 - 98.6 %As remainder
Chromium, Cr 0.040 - 0.35 %0.040 - 0.35 %
Copper, Cu 0.15 - 0.40 %0.15 - 0.40 %
Iron, Fe <= 0.70 %<= 0.70 %
Magnesium, Mg 0.80 - 1.2 %0.80 - 1.2 %
Manganese, Mn <= 0.15 %<= 0.15 %
Other, each <= 0.050 %<= 0.050 %
Other, total <= 0.15 %<= 0.15 %
Silicon, Si 0.40 - 0.80 %0.40 - 0.80 %
Titanium, Ti <= 0.15 %<= 0.15 %
Zinc, Zn <= 0.25 %<= 0.25 %

References for this datasheet.

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