Aluminum 7075-T6; 7075-T651
Categories: Metal; Nonferrous Metal; Aluminum Alloy; 7000 Series Aluminum Alloy
Material Notes: General 7075 characteristics and uses (from Alcoa): Very high strength material used for highly stressed structural parts. The T7351 temper offers improved stress-corrosion cracking resistance.

Applications: Aircraft fittings, gears and shafts, fuse parts, meter shafts and gears, missile parts, regulating valve parts, worm gears, keys, aircraft, aerospace and defense applications; bike frames, all terrain vehicle (ATV) sprockets.

Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Composition Notes:
A Zr + Ti limit of 0.25 percent maximum may be used with this alloy designation for extruded and forged products only, but only when the supplier and the purchaser have mutually agreed.
Composition information provided by the Aluminum Association and is not for design.
Key Words: Aluminium 7075-T6; Aluminium 7075-T651, UNS A97075; ISO AlZn5.5MgCu; Aluminium 7075-T6; Aluminium 7075-T651; AA7075-T6; Al7075-T6
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Physical PropertiesMetricEnglishComments
Density 2.81 g/cc0.102 lb/in³AA; Typical
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 150150AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop 191191Converted from Brinell Hardness Value
Hardness, Rockwell A 53.553.5Converted from Brinell Hardness Value
Hardness, Rockwell B 8787Converted from Brinell Hardness Value
Hardness, Vickers 175175Converted from Brinell Hardness Value
Tensile Strength, Ultimate 572 MPa83000 psiAA; Typical
 41.0 MPa
@Temperature 371 °C		5950 psi
@Temperature 700 °F
 55.0 MPa
@Temperature 316 °C		7980 psi
@Temperature 601 °F
 76.0 MPa
@Temperature 260 °C		11000 psi
@Temperature 500 °F
 110 MPa
@Temperature 204 °C		16000 psi
@Temperature 399 °F
 214 MPa
@Temperature 149 °C		31000 psi
@Temperature 300 °F
 483 MPa
@Temperature 100 °C		70100 psi
@Temperature 212 °F
 572 MPa
@Temperature 24.0 °C		83000 psi
@Temperature 75.2 °F
 593 MPa
@Temperature -28.0 °C		86000 psi
@Temperature -18.4 °F
 621 MPa
@Temperature -80.0 °C		90100 psi
@Temperature -112 °F
 703 MPa
@Temperature -196 °C		102000 psi
@Temperature -321 °F
 >= 462 MPa
@Thickness 88.93 - 102 mm		>= 67000 psi
@Thickness 3.501 - 4.00 in		Plate; T62, T651
 >= 490 MPa
@Thickness 76.23 - 88.9 mm		>= 71100 psi
@Thickness 3.001 - 3.50 in		Plate; T62, T651
 >= 496 MPa
@Thickness 63.53 - 76.2 mm		>= 71900 psi
@Thickness 2.501 - 3.00 in		Plate; T62, T651
 >= 510 MPa
@Thickness 0.203 - 0.279 mm		>= 74000 psi
@Thickness 0.00800 - 0.0110 in		Sheet
 >= 524 MPa
@Thickness 0.305 - 0.991 mm		>= 76000 psi
@Thickness 0.0120 - 0.0390 in		Sheet
 >= 524 MPa
@Thickness 50.83 - 63.5 mm		>= 76000 psi
@Thickness 2.001 - 2.50 in		Plate; T62, T651
 >= 531 MPa
@Thickness 25.43 - 50.8 mm		>= 77000 psi
@Thickness 1.001 - 2.00 in		Plate; T62, T651
 >= 538 MPa
@Thickness 1.02 - 3.17 mm		>= 78000 psi
@Thickness 0.0400 - 0.125 in		Sheet
 >= 538 MPa
@Thickness 3.20 - 6.32 mm		>= 78000 psi
@Thickness 0.126 - 0.249 in		Sheet
 >= 538 MPa
@Thickness 6.35 - 12.7 mm		>= 78000 psi
@Thickness 0.250 - 0.499 in		Plate; T62, T651
 >= 538 MPa
@Thickness 12.7 - 25.4 mm		>= 78000 psi
@Thickness 0.500 - 1.00 in		Plate; T62, T651
Tensile Strength, Yield 503 MPa73000 psiAA; Typical
 >= 372 MPa
@Thickness 88.93 - 102 mm		>= 54000 psi
@Thickness 3.501 - 4.00 in		Plate; T62, T651
 >= 400 MPa
@Thickness 76.23 - 88.9 mm		>= 58000 psi
@Thickness 3.001 - 3.50 in		Plate; T62, T651
 >= 421 MPa
@Thickness 63.53 - 76.2 mm		>= 61100 psi
@Thickness 2.501 - 3.00 in		Plate; T62, T651
 >= 434 MPa
@Thickness 0.203 - 0.279 mm		>= 62900 psi
@Thickness 0.00800 - 0.0110 in		Sheet
 >= 441 MPa
@Thickness 50.83 - 63.5 mm		>= 64000 psi
@Thickness 2.001 - 2.50 in		Plate; T62, T651
 >= 462 MPa
@Thickness 0.305 - 0.991 mm		>= 67000 psi
@Thickness 0.0120 - 0.0390 in		Sheet
 >= 462 MPa
@Thickness 6.35 - 12.7 mm		>= 67000 psi
@Thickness 0.250 - 0.499 in		Plate; T62, T651
 >= 462 MPa
@Thickness 25.43 - 50.8 mm		>= 67000 psi
@Thickness 1.001 - 2.00 in		Plate; T62, T651
 >= 469 MPa
@Thickness 1.02 - 3.17 mm		>= 68000 psi
@Thickness 0.0400 - 0.125 in		Sheet
 >= 469 MPa
@Thickness 12.7 - 25.4 mm		>= 68000 psi
@Thickness 0.500 - 1.00 in		Plate; T62, T651
 >= 476 MPa
@Thickness 3.20 - 6.32 mm		>= 69000 psi
@Thickness 0.126 - 0.249 in		Sheet
 32.0 MPa
@Strain 0.2 %,
Temperature 271 °C		4640 psi
@Strain 0.2 %,
Temperature 520 °F
 45.0 MPa
@Strain 0.2 %,
Temperature 316 °C		6530 psi
@Strain 0.2 %,
Temperature 601 °F
 62.0 MPa
@Strain 0.2 %,
Temperature 260 °C		8990 psi
@Strain 0.2 %,
Temperature 500 °F
 87.0 MPa
@Strain 0.2 %,
Temperature 204 °C		12600 psi
@Strain 0.2 %,
Temperature 399 °F
 186 MPa
@Strain 0.2 %,
Temperature 149 °C		27000 psi
@Strain 0.2 %,
Temperature 300 °F
 448 MPa
@Strain 0.2 %,
Temperature 100 °C		65000 psi
@Strain 0.2 %,
Temperature 212 °F
 503 MPa
@Strain 0.2 %,
Temperature 24.0 °C		73000 psi
@Strain 0.2 %,
Temperature 75.2 °F
 517 MPa
@Strain 0.2 %,
Temperature -28.0 °C		75000 psi
@Strain 0.2 %,
Temperature -18.4 °F
 545 MPa
@Strain 0.2 %,
Temperature -80.0 °C		79000 psi
@Strain 0.2 %,
Temperature -112 °F
 634 MPa
@Strain 0.2 %,
Temperature -196 °C		92000 psi
@Strain 0.2 %,
Temperature -321 °F
Elongation at Break  9.0 %
@Temperature -196 °C		9.0 %
@Temperature -321 °F
 11 %
@Temperature -80.0 °C		11 %
@Temperature -112 °F
 11 %
@Temperature -28.0 °C		11 %
@Temperature -18.4 °F
 11 %
@Temperature 24.0 °C		11 %
@Temperature 75.2 °F
 14 %
@Temperature 100 °C		14 %
@Temperature 212 °F
 30 %
@Temperature 149 °C		30 %
@Temperature 300 °F
 55 %
@Temperature 204 °C		55 %
@Temperature 399 °F
 65 %
@Temperature 260 °C		65 %
@Temperature 500 °F
 70 %
@Temperature 316 °C		70 %
@Temperature 601 °F
 70 %
@Temperature 371 °C		70 %
@Temperature 700 °F
 >= 3.0 %
@Thickness 88.93 - 102 mm		>= 3.0 %
@Thickness 3.501 - 4.00 in		Plate; T62, T651
 >= 5.0 %
@Thickness 0.203 - 0.279 mm		>= 5.0 %
@Thickness 0.00800 - 0.0110 in		Sheet
 >= 5.0 %
@Thickness 50.83 - 63.5 mm		>= 5.0 %
@Thickness 2.001 - 2.50 in		Plate; T62, T651
 >= 5.0 %
@Thickness 63.53 - 76.2 mm		>= 5.0 %
@Thickness 2.501 - 3.00 in		Plate; T62, T651
 >= 5.0 %
@Thickness 76.23 - 88.9 mm		>= 5.0 %
@Thickness 3.001 - 3.50 in		Plate; T62, T651
 >= 6.0 %
@Thickness 25.43 - 50.8 mm		>= 6.0 %
@Thickness 1.001 - 2.00 in		Plate; T62, T651
 >= 7.0 %
@Thickness 0.305 - 0.991 mm		>= 7.0 %
@Thickness 0.0120 - 0.0390 in		Sheet
 >= 7.0 %
@Thickness 12.7 - 25.4 mm		>= 7.0 %
@Thickness 0.500 - 1.00 in		Plate; T62, T651
 >= 8.0 %
@Thickness 1.02 - 3.17 mm		>= 8.0 %
@Thickness 0.0400 - 0.125 in		Sheet
 >= 8.0 %
@Thickness 3.20 - 6.32 mm		>= 8.0 %
@Thickness 0.126 - 0.249 in		Sheet
 >= 9.0 %
@Thickness 6.35 - 12.7 mm		>= 9.0 %
@Thickness 0.250 - 0.499 in		Plate; T62, T651
 11 %
@Thickness 1.59 mm		11 %
@Thickness 0.0625 in		AA; Typical
 11 %
@Diameter 12.7 mm		11 %
@Diameter 0.500 in		AA; Typical
Modulus of Elasticity 71.7 GPa10400 ksiAA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poissons Ratio 0.330.33
Fatigue Strength 159 MPa
@# of Cycles 5.00e+8 		23000 psi
@# of Cycles 5.00e+8 		completely reversed stress; RR Moore machine/specimen
Fracture Toughness 17.6 MPa-m½16.0 ksi-in½T651; Plate; S-L; average
 16.5 - 19.8 MPa-m½15.0 - 18.0 ksi-in½T651; Plate; S-L
 18.7 MPa-m½17.0 ksi-in½T651; Forgings; S-L
 20.0 MPa-m½18.2 ksi-in½K(IC) in S-L Direction
 22.0 - 25.3 MPa-m½20.0 - 23.0 ksi-in½T651; Plate; T-L
 24.2 MPa-m½22.0 ksi-in½T651; Plate; T-L; average
 25.0 MPa-m½22.8 ksi-in½K(IC) in T-L Direction
 28.6 MPa-m½26.0 ksi-in½T651; Plate; L-T; average
 27.5 - 29.7 MPa-m½25.0 - 27.0 ksi-in½T651; Plate; L-T
 29.0 MPa-m½26.4 ksi-in½K(IC) in L-T Direction
Machinability 70 %70 %0-100 Scale of Aluminum Alloys
Shear Modulus 26.9 GPa3900 ksi
Shear Strength 331 MPa48000 psiAA; Typical
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000515 ohm-cm
@Temperature 20.0 °C		0.00000515 ohm-cm
@Temperature 68.0 °F		AA; Typical
 
Thermal PropertiesMetricEnglishComments
CTE, linear  21.6 µm/m-°C
@Temperature -50.0 - 20.0 °C		12.0 µin/in-°F
@Temperature -58.0 - 68.0 °F
 23.4 µm/m-°C
@Temperature 20.0 - 100 °C		13.0 µin/in-°F
@Temperature 68.0 - 212 °F
 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
 24.3 µm/m-°C
@Temperature 20.0 - 200 °C		13.5 µin/in-°F
@Temperature 68.0 - 392 °F
 25.2 µm/m-°C
@Temperature 20.0 - 300 °C		14.0 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.960 J/g-°C0.229 BTU/lb-°F
Thermal Conductivity 130 W/m-K900 BTU-in/hr-ft²-°FAA; Typical at 77°F
Melting Point 477 - 635.0 °C890 - 1175 °FAA; Typical range based on typical composition for wrought products >= 1/4 in. thickness. Homogenization may raise eutectic melting temperature 20-40°F but usually does not eliminate it.
Solidus 477 °C890 °FAA; Typical
Liquidus 635.0 °C1175 °FAA; Typical
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 413 °C775 °F
Solution Temperature 466 - 482 °C870 - 900 °F
Aging Temperature 121 °C250 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 87.1 - 91.4 %87.1 - 91.4 %As remainder
Chromium, Cr 0.18 - 0.28 %0.18 - 0.28 %
Copper, Cu 1.2 - 2.0 %1.2 - 2.0 %
Iron, Fe <= 0.50 %<= 0.50 %
Magnesium, Mg 2.1 - 2.9 %2.1 - 2.9 %
Manganese, Mn <= 0.30 %<= 0.30 %
Other, each <= 0.05 %<= 0.05 %
Other, total <= 0.15 %<= 0.15 %
Silicon, Si <= 0.40 %<= 0.40 %
Titanium, Ti <= 0.20 %<= 0.20 %
Zinc, Zn 5.1 - 6.1 %5.1 - 6.1 %

References for this datasheet.

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