Aluminum 7050-T7451 (7050-T73651)

Subcategory: 7000 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: AA7050-T7451; AA7070-T73651, UNS A97050; ISO AlZn6CuMgZr; Aluminium 7050-T7451; Aluminium 7070-T73651

Component    Wt. % Al 87.3 - 90.3   Cr Max 0.04   Cu 2 - 2.6   Fe Max 0.15

Component    Wt. % Mg 1.9 - 2.6   Mn Max 0.1   Other, each Max 0.05   Other, total Max 0.15

Component    Wt. % Si Max 0.12   Ti Max 0.06   Zn 5.7 - 6.7   Zr 0.08 - 0.15

Material Notes:
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	2.83 g/cc	0.102 lb/in³	AA; Typical
Mechanical Properties
Hardness, Brinell	140	140	500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop	177	177	Converted from Brinell Hardness Value
Hardness, Rockwell A	51.6	51.6	Converted from Brinell Hardness Value
Hardness, Rockwell B	84	84	Converted from Brinell Hardness Value
Hardness, Vickers	162	162	Converted from Brinell Hardness Value
Ultimate Tensile Strength	524 MPa	76000 psi	AA; Typical
Tensile Yield Strength	469 MPa	68000 psi	AA; Typical
Elongation at Break	11 %	11 %	AA; Typical; 1/2 in. (12.7 mm) Diameter
Modulus of Elasticity	71.7 GPa	10400 ksi	AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poisson's Ratio	0.33	0.33
Fracture Toughness	28 MPa-m½	25.5 ksi-in½	K(IC) in S-L Direction
Fracture Toughness	31 MPa-m½	28.2 ksi-in½	K(IC) in T-L Direction
Fracture Toughness	35 MPa-m½	31.9 ksi-in½	K(IC) in L-T Direction
Shear Modulus	26.9 GPa	3900 ksi
Shear Strength	303 MPa	44000 psi	AA; Typical
Electrical Properties
Electrical Resistivity	4.3e-006 ohm-cm	4.3e-006 ohm-cm
Thermal Properties
CTE, linear 68°F	23 µm/m-°C	12.8 µin/in-°F	AA; Typical; Average over 68-212°F range.
CTE, linear 250°C	25.4 µm/m-°C	14.1 µin/in-°F	Average over the range 20-300ºC
Specific Heat Capacity	0.86 J/g-°C	0.206 BTU/lb-°F
Thermal Conductivity	157 W/m-K	1090 BTU-in/hr-ft²-°F
Melting Point	488 - 629 °C	910 - 1165 °F	AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater
Solidus	488 °C	910 °F	AA; Typical
Liquidus	629 °C	1165 °F	AA; Typical
Processing Properties
Annealing Temperature	413 °C	775 °F
Solution Temperature	477 °C	890 °F
Aging Temperature	121 - 177 °C	250 - 350 °F

References for this datasheet.