Propriedades da liga de alumínio 7075, AA 7075-T6, T7351, T651, densidade, composição, resistência ao escoamento

Properties of aluminum alloy 7075, AA 7075-T6, T7351, T651, density, composition, yield strength

Al 7075 Aluminum Alloy Plate AA 7075-T6 T7351 T651

7075 Aluminum Alloy (7075-T6, 7075-T651, 7075-T7351, 7075-T73)

7075 aluminum alloy is a high-strength, heat-treatable forged alloy developed by Alcoa in 1943. The alloy contains zinc, magnesium, chromium and copper as hardeners, as well as small amounts of iron, silicon, manganese and titanium. Al-7075 is much stronger than carbon steel after heat treatment. Tempered design includes aluminum 7075-T6, T651, T7351, T73, T76, T7651, O, W, W51, etc.

7075 aluminum responds to age-hardening heat treatment, resulting in extremely high mechanical properties. However, this alloy exhibits a certain degree of notch sensitivity. The 7075 material shows good formability in solution annealed and heat-treated conditions at room temperature and in 7075-T6 conditions at elevated temperatures.

Alloy 7075 has good machinability in the annealed condition, with little or no deformation occurring during the age hardening process. Its corrosion resistance is good and is improved by heat treatment and aging. The alloy resists stress corrosion cracking in temper 7075-T73. Al-7075 can be resistance welded, but fusion welding is generally not recommended.

AA-7075 has various sizes and can be used for thin sheets, strips, plates, bars, wires, seamless tubes, forgings, profiles and extrusions.

The abbreviations AA7075 and Al-7075 in this article are the same material. Al-Aluminum; AA Aluminum Alloy or Aluminum Association.

Properties of 7075 aluminum

The following tables and lists summarize the properties, data sheets and specifications of 7075 aluminum, including chemical composition, physical and mechanical properties, welding, hardness, machinability, heat treatment, etc.

Chemical composition

The chemical composition of 7075 aluminum is listed in the following table.

Chemical Composition of Aluminum 7075, %
Standard ANSI Alloy (UNS) Yes Fe, ≤ Ass Mn, ≤ mg Cr Zn, ≤ Ti, ≤ Other elements, each (total), ≤ Al
ASTM B209,
ASTM B210,
ASTM B211,
ASTM B221,
AMS-QQ-A-225/9,
AMS-QQ-A-200/11,
AMS-QQ-A-250/12,
AMS-WW-T-700/7
7075
(UNS A97075)
0.40 0.50 1.2-2.0 0:30 2.1-2.9 0.18-0.28 5.1-6.1 0.20 0.05 (0.15) Remaining

Notes (various standards of 7075 aluminum alloy):

  • ASTM B209: Aluminum and aluminum alloy sheets and plates.
  • ASTM B210: Seamless Drawn Tubes.
  • ASTM B211: Cold-rolled or finished bars, rebar, and wire.
  • ASTM B221: Bars, rebar, wire, profiles and extruded tubes.
  • AMS-QQ-A-225/9: Aluminum 7075, Bar, Rod, Wire and Special Shapes; Rolled, drawn or cold finished
  • AMS-QQ-A-200/11: Al 7075, bar, rod, forms, tube and wire, extruded
  • AMS-QQ-A-250/12: AA 7075, Plate and Sheet
  • AMS-WW-T-700/7: Tube, drawn, seamless

Physical Properties of 7075 Aluminum Alloy

The physical properties of 7075 aluminum alloy are given in the following lists, including aluminum density, melting point, coefficient of thermal expansion, modulus of elasticity, thermal conductivity, specific heat capacity, electrical conductivity and electrical resistance.

Grades:

  • 10 -6 ·K -1 = 10 -6 /K = 1 μm/m·°C
  • 1Ω mm²/m = 1 μΩ m
  • 1 g/cm3 = 1 kg/dm3 = 1000 kg/m3
  • 1 GPa = 1kN/mm2
  • 1 MPa = 1 N/mm2
  • MS/m = 0.58⋅% IACS
  • 1 cal/(gC) = 1 Btu/(lb. F)
Physical Properties of AA 7075 Aluminum
League and Temperament Density, g/cm3 (lb/in.3) Specific gravity Melting point, °C (°F) Specific heat capacity, J/kg·K (Btu/lb ·°F) Coefficient of thermal expansion, 10-6/K (μin./in. ·°F) Thermal diffusivity, mm2/s Thermal conductivity, W/m·°C (Btu∙in/h∙ft2∙°F) Electrical conductivity, equal volume (equal weight), % IACS Electrical conductivity, equal volume (equal weight), MS/m Electrical resistivity, Ω·mm2/m (Ω·circ mil/ft)
7075-T6 2.81 (0.101) 2.81 477-638 (890-1175) 960 (0.23) at 20°C (68°F) 23.6 (13.1) at 20-100°C (68-212°F) 48.36 130 (900) to 25°C (77°F) 33 (105) to 20°C (68°F) 19 (61) to 20 °C (68 °F) 0.0515 (31) at 20°C (68°F)

Grades:

  • The melting range shown applies to forged products with a thickness of 6.35 mm (1/4 inch) or greater.
  • Homogenization can increase the eutectic melting temperature by 10 to 20 °C, but generally does not eliminate eutectic melting.

Mechanical Properties of Aluminum 7075

The mechanical properties of 7075-T6 aluminum are listed in the following tables, including yield strength (yield stress), ultimate tensile strength, shear strength, modulus of elasticity, modulus of elasticity, etc.

The following mechanical properties are the average value of various product sizes, shapes and manufacturing methods, so the properties cannot be guaranteed. They are only used as a basis for alloy comparison and tempering and should not be specified as engineering requirements or used for design purposes.

Mechanical Properties of 7075-T6 Aluminum, Not for Design, Part 1
Aluminum alloy and quenching Ultimate tensile strength, MPa (ksi) Yield strength, MPa (ksi) Elongation by 50 mm (2 in.), %, ≥ Brinell hardness, HB (load of 500 kgf 10mm ball)
1.6 mm (1/16 in.) thick sample 12.5 mm (1/2 in.) thick sample
7075-O 230 (33) 105 (15) 17 14 60
AA7075-T6, T651 570 (83) 505 (73) 11 11 150
Alclad 7075-O 220 (32) 95 (14) 17
Alclad 7075-T6, T651 525 (76) 460 (67) 11
Mechanical Properties of 7075-T6 Aluminum, Not for Design, Part 2
Aluminum alloy and quenching Ultimate shear strength, MPa (ksi) Modulus of elasticity, GPa (10 6 psi) Fatigue resistance limit, MPa (ksi)
7075-O 150 (22) 72 (10.4)
7075-T6, T651 330 (48) 160 (23)
Alclad 7075-O 150 (22)
Alclad 7075-T6, T651 315 (46)

Average value of the tensile and compression modulus. The compression modulus is approximately 2% greater than the tensile modulus (Young's modulus).

Mechanical Properties of 7075-T6 Aluminum in SAE AMS and ASTM Standard

Mechanical Properties of Aluminum 7075 – Cold rolled or finished bars, rebars and wires
Standard Aluminum alloy and quenching Specified diameter or thickness, in. Tensile strength, ksi, ≥ (unless otherwise specified) Yield strength (0.2% shift), ksi, ≥ (unless otherwise specified) Stretch by 2 in. or 4xDiameter, ≥, %
ASTM B211
SAE AMS-QQ-A-225/9
7075-O ≤0.124 40, ≤ 12.0
0.125-8.000 10
7075-T6, T62 ≤ 0.124 77 66
0.125-4.000 77 66 7
7075-T651 ≤0.124 77 66
0.125-4.000 77 66 7
4,001-6,000 75 64 7
6,001-7,000 73 62 7
7075-T7351, T73 ≤ 0.124 68
0.125-4.000 68 56 10
4,001-5,000 66 55 8
5,001-6,000 64 52 8
Mechanical properties of 7075 aluminum alloy – Bars, rods, wires, profiles and extruded tubes
Standard Aluminum alloy and quenching Specified diameter or thickness, in. Area, in2 Tensile strength, ksi, ≥ (unless otherwise specified) Yield strength (0.2% shift), ksi, ≥ (unless otherwise specified) Stretch by 2 in. or 4xDiameter, ≥, %
ASTM B221
SAE AMS-QQ-A-200/11
7075-O all all 40, ≤ 24, ≤ 10
AA 7075-T6, T62, T6510, T6511 ≤ 0.249 all 78 70 7
0.250-0.499 all 81 73 7
0.500-1.499 all 81 72 7
1,500-2,999 all 81 72 7
3,000-4,499 ≤ 20
>20, ≤32
81
78
71
70
7
6
4,500-5,000 ≤32 78 68 6
AA7075-T73, T73510, T73511 0.062-0.249 ≤ 20 68 58 7
0.250-1.499 ≤ 25 70 61 8
1,500-2,999 ≤ 25 69 59 8
3,000-4,499 ≤ 20
>20, ≤32
68.0
65.0
57.0
55.0
7
7
AA-7075-T76, T76510, T76511 ≤ 0.049 all 73 63 7
0.050-0.124 all 74 64
0.125-0.249 ≤20 74 64
0.250-0.499 ≤20 75 65
0.500-1.000 ≤20 75 65
1,001-2,000 ≤20 75 65
2001-3000 ≤20 74 64
3,001-4,000 ≤20 74 63
Mechanical Properties of Aluminum AA 7075 – Seamless designed tubes Stretch by 2 in. or 4xDiameter, ≥, %
Standard Aluminum alloy and quenching Specified diameter or thickness, in. Tensile strength, ksi, ≥ (unless otherwise specified) Yield strength (0.2% shift), ksi, ≥ (unless otherwise specified) Full Section Sample Cropped sample
ASTM B210
SAE AMS-WW-T-700/7
7075-O 0.025-0.049 40, ≤ 21, ≤ 10 8
0.050-0.500 40,≤ 21, ≤ 12 10
7075-T6, T62 0.025-0.259 77 66 8 7
.260-.500 77 66 9 8
Mechanical Properties of Aluminum 7075 – Plate and Foil
Standard Aluminum alloy and quenching Specified thickness, in. Tensile strength, ksi, ≥ (unless otherwise specified) Yield strength (0.2% shift), ksi, ≥ (unless otherwise specified) Stretch by 2 in. or 4xDiameter, ≥, % Bending diameter factor, N
ASTM B209
SAE AMS-QQ-A-250/12
7075-O 0.015-0.020 40, ≤ 21,≤ 10 1
0.021-0.062 two
0.063-0.091 3
0.092-0.125 4
0.126-0.249 5
0.250-0.499 6
0.500-2.000
7075-T6, T62 0.008-0.011 74.0 63.0 5 7
0.012-0.020 76.0 67.0 8 7
0.021-0.039 76.0 67.0 8 8
0.040-0.062 78.0 68.0 9 8
0.063-0.091 78.0 68.0 9 9
0.092-0.125 78.0 68.0 9 10
0.126-0.187 79.0 69.0 9 11
0.188-0.249 80.0 69.0 9 11
7075 T651, T62 0.250-0.499 78.0 67.0 9 14
0.500-1.000 78.0 68.0 7
1,001-2,000 77.0 67.0 6
2001-2500 76.0 64.0 5
2,501-3,000 72.0 61.0 5
3,001-3,500 71.0 58.0 5
3,501-4,000 67.0 54.0 3
Sheet 7075 T73 0.040-0.249 67.0 56.0 8
AA-7075 T7351 Board 0.250-1.000 69.0 57.0 7
1,001-2,000 69.0 57.0 6
2001-2500 66.0 52.0 6
2,501-3,000 64.0 49.0 6
3,001-3,500 63.0 49.0 6
3,501-4,000 61.0 48.0 6
Sheet 7075-T76 0.063-0.125 73.0 62.0 8
0.126-0.249 73.0 62.0 8
7075-T7651 Board 0.250-0.499 72.0 61.0 8
0.500-1.000 71.0 60.0 6
1,001-2,000 71.0 60.0 5
7075F 0.250-4.000
Alclad 7075-O 0.008-0.014 36.0, ≤ 20.0,≤ 9 1
0.015-0.032 36.0, ≤ 20.0,≤ 10 1
0.033-0.062 36.0, ≤ 20.0,≤ 10 two
0.063-0.125 38, ≤ 20.0,≤ 10 3
0.126-0.187 38, ≤ 20.0,≤ 10 4
0.188-0.249 39, ≤ 21.0,≤ 10 4
0.250-0.499 39, ≤ 21.0,≤ 10 6
0.500-1.000 40, ≤ 10
Alclad 7075-T6, T62 0.008-0.011 68.0 58.0 5 6
0.012-0.020 71.0 61.0 8 6
0.021-0.039 71.0 61.0 8 7
0.040-0.062 72.0 62.0 9 7
0.063-0.091 74.0 64.0 9 8
0.092-0.125 74.0 64.0 9 9
0.126-0.187 74.0 64.0 9 10
0.188-0.249 76.0 65.0 9 10
Alclad 7075-T651, T62 0.250-0.499 75.0 65.0 9 12
0.500-1.000 78.0 68.0 7
1,001-2,000 77.0 67.0 6
2001-2500 76.0 64.0 5
2,501-3,000 72.0 61.0 5
3,001-3,500 71.0 58.0 5
3,501-4,000 67.0 54.0 3
Alclad Sheet 7075 T76 0.040-0.062 67.0 56.0 8
0.063-0.125 68.0 57.0 8
0.126-0.187 68.0 57.0 8
0.188-0.249 70.0 59.0 8
Alclad 7075 T7651 Board 0.250-0.499 69.0 58.0 8
0.500-1.000 71.0 60.0 6
Alclad 7075 F 0.250-4.000
Alclad 7075-O, 1 side 0.015-0.032 38.0, ≤ 21.0,≤ 10 1
0.033-0.062 38.0, ≤ 21.0,≤ 10 two
0.063-0.125 39.0, ≤ 21.0,≤ 10 3
0.092-0.125 39.0, ≤ 21.0,≤ 10 4
0.126-0.187 39.0, ≤ 21.0,≤ 10 5
0.188-0.249 39.0, ≤ 21.0,≤ 10 5
0.250-0.499 39.0, ≤ 21.0,≤ 10 6
0.500-1.000 40, ≤ 10
Alclad 7075-T6, T62, 1 side 0.008-0.011 71.0 60 5
0.012-0.020 74.0 64 8
0.015-0.032 74.0 64 8 7
0.033-0.03 74.0 64 8 8
0.040-0.062 75.0 65 9 8
0.063-0.091 76.0 66 9 9
0.092-0.125 76.0 66 9 10
0.126-0.187 77.0 67 9 11
0.188-0.249 78 67 9 11
Alclad 7075-T651, T62, 1 side 0.250-0.499 76.0 66.0 9 13
0.500-1.000 78.0 68.0 7
1,001-2,000 77.0 67.0 6
Alclad 7075 F, 1 side 0.250-2.000

League 7075 Applications

Typical applications of alloy 7075 are aircraft structures, piping systems, mobile equipment and high pressure hydraulic systems, blow molds, ultrasonic plastic welding molds, shoe molds, paper molds, foam molds, dewaxing molds , jigs, mold machining, high quality aluminum alloy bicycle frames, etc.

Equivalent material of 7075 aluminum alloy

7075 aluminum alloy equivalent to European EN standard (German DIN EN, British BSI EN, France NF EN), ISO, Japanese JIS and Chinese standard GB (for reference).

Notes: DIN 1725-1 has been replaced by DIN EN 573-3.

7075 aluminum alloy equivalent
USA ISO European Union Germany Japan Australia and New Zealand China
Standard AISI (UNS) Standard Designation Standard Numeric (chemical symbols) Standard Designation (material number) Standard Note Standard Designation Standard Note
ASTM B209,
ASTM B210,
ASTM B211,
ASTM B221,
AMS-QQ-A-225/9,
AMS-QQ-A-200/11,
AMS-QQ-A-250/12,
AMS-WW-T-700/7
7075 (UNS A97075) ISO 209 AW-7075 EN 573-3 PT AW-7075
(EN AW-AlZn5.5MgCu)
DIN 1725-1 AlZnMgCu1.5 (3.4365) JIS H4000;
JIS H4040
7075 LIKE 2848.1,
AS/NZS 1734,
AS/NZS 1865,
AS/NZS 1866
7075 GB/T 3190;
GB/T 3880.2
7075

Related materials: Properties of 6061 Aluminum, Aluminum Weight Calculator, Aluminum Density

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1 comment

I’m wondering about the availability of aluminium alloy 6061 with various treatments (0, T4, T6) with a thickness of 5 mm, plat ,300 mm*400 mm. If you have this material, please provide us with
sheet of mechanical properties and a quote.
thickness of 5 mm plat
Quantities : one from every different heat treatment: normal condition, T4,T6
Tolerances : 300*400mm

nejmeddine

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