Aluminum 6061-T8

Subcategory: 6000 Series Aluminum Alloy; Aluminum Alloy; Metal; Nonferrous Metal

Close Analogs:

Composition Notes:
Aluminum content reported is calculated as remainder.
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

Component    Wt. % Al 95.8 - 98.6   Cr 0.04 - 0.35   Cu 0.15 - 0.4   Fe Max 0.7

Component    Wt. % Mg 0.8 - 1.2   Mn Max 0.15   Other, each Max 0.05   Other, total Max 0.15

Component    Wt. % Si 0.4 - 0.8   Ti Max 0.15   Zn Max 0.25

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.

Physical Properties	Metric	English	Comments
Density	2.7 g/cc	0.0975 lb/in³	AA; Typical
Mechanical Properties
Hardness, Brinell	120	120	500 kg load/10 mm ball
Hardness, Knoop	150	150	Estimated from Brinell
Hardness, Rockwell A	46.8	46.8	Estimated from Brinell
Hardness, Rockwell B	75	75	Estimated from Brinell
Hardness, Vickers	136	136	Estimated from Brinell
Tensile Strength, Ultimate	Min 310 MPa	Min 45000 psi
Tensile Strength, Yield	Min 276 MPa	Min 40000 psi
Elongation at Break	8 %	8 %
Modulus of Elasticity	69 GPa	10000 ksi	Average of Tension and Compression. In Aluminum alloys, the compressive modulus is typically 2% greater than the tensile modulus
Poisson's Ratio	0.33	0.33	Estimated from trends in similar Al alloys.
Machinability	50 %	50 %	0-100 Scale (A=90; B=70; C=50; D=30; E=10)
Shear Modulus	26 GPa	3770 ksi	Estimated from similar Al alloys.
Shear Strength	185 MPa	26800 psi	Estimated from ultimate tensile strength
Electrical Properties
Electrical Resistivity	3.7e-006 ohm-cm	3.7e-006 ohm-cm
Thermal Properties
CTE, linear 68°F	23.6 µm/m-°C	13.1 µin/in-°F	AA; Typical; Average over 68-212°F range.
CTE, linear 250°C	25.2 µm/m-°C	14 µin/in-°F	Estimated from trends in similar Al alloys. 20-300°C.
Specific Heat Capacity	0.896 J/g-°C	0.214 BTU/lb-°F
Thermal Conductivity	170 W/m-K	1180 BTU-in/hr-ft²-°F
Melting Point	582 - 652 °C	1080 - 1205 °F	AA; 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 °C	1080 °F	AA; Typical
Liquidus	652 °C	1205 °F	AA; Typical
Processing Properties
Solution Temperature	529 °C	985 °F
Aging Temperature	160 °C	320 °F	Rolled or drawn products; hold at temperature for 18 hr
Aging Temperature	177 °C	350 °F	Extrusions or forgings; hold at temperature for 8 hr

References for this datasheet.