AA Standards Grade 7075 T7351

Alternative and trade names
FORMODAL® BM-7075, 7075 T751
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Description

Hardenable alloy with very high strength and very high fatigue strength. Aluminium rolled plate

Related Standards

Equivalent Materials

This material data has been provided by AluKey,MakeItFrom.com,ASM Handbook Volume 2 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials,WroughtAl_ElectricalResistivity,BIKA,Righton Blackburns.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

2.8 - 3.1 g/cm³

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Surface roughness

0.4 μm

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Dimension

PropertyValue

Thickness

8 - 100 mm

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

72 GPa

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Elongation

-195.0 °C

14 %

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Elongation in 50 mm

-80.0 °C

14 %

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Elongation in 50 mm

0.0 °C

13 %

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Elongation in 50 mm

23.0 °C

5 - 7.2 %

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Elongation in 50 mm

24.0 °C

13 %

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Elongation in 50 mm

100.0 °C

15 %

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Elongation in 50 mm

150.0 °C

30 %

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Elongation in 50 mm

205.0 °C

55 %

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Elongation in 50 mm

260.0 °C

65 %

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Elongation in 50 mm

315.0 °C

70 %

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Elongation in 50 mm

370.0 °C

70 %

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Elongation in 50 mm

Elongation A100

23.0 °C

5 - 9 %

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Elongation A50

23.0 °C

7 - 10 %

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Hardness, HBW

23.0 °C

126 - 140 [-]

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Plane-Strain Fracture Toughnes

-196.0 °C

32.1 MPa·√m

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For plate in T-L direction

24.0 °C

35.9 MPa·√m

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For plate in T-L direction

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Poisson's ratio

23.0 °C

0.33 [-]

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Typical for Wrought 7000 Series Aluminium

Shear modulus

23.0 °C

26.4 - 27.1 GPa

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Typical for Wrought 7000 Series Aluminium

Tensile strength

-195.0 °C

635 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

-80.0 °C

545 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

0.0 °C

525 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

23.0 °C

420 - 520 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

24.0 °C

503 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

100.0 °C

435 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

150.0 °C

215 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

205.0 °C

110 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

260.0 °C

75 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

315.0 °C

55 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

370.0 °C

40 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

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Yield strength

23.0 °C

340 - 420 MPa

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Yield strength Rp0.2

-196.0 °C

496 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

-80.0 °C

462 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

-28.0 °C

448 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

23.0 °C

330 - 425 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

24.0 °C

434 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

100.0 °C

400 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

149.0 °C

186 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

204.0 °C

90 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

260.0 °C

62 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

316.0 °C

45 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

371.0 °C

32 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

2.3E-5 - 2.35E-5 1/K

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Mean values between 20°C and the mentioned temperature

100.0 °C

2.34E-5 1/K

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Mean values between 20°C and the mentioned temperature

200.0 °C

2.43E-5 1/K

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Mean values between 20°C and the mentioned temperature

300.0 °C

2.52E-5 1/K

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Mean values between 20°C and the mentioned temperature

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Melting point

480 - 635 °C

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Specific heat capacity

23.0 °C

862 - 910 J/(kg·K)

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Thermal conductivity

23.0 °C

130 - 160 W/(m·K)

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Electrical

PropertyTemperatureValueComment

Electrical conductivity

23.0 °C

1.90E+7 - 2.30E+7 S/m

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Typical/derived value

Electrical resistivity

23.0 °C

4.31E-8 Ω·m

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Typical value

Specific Electrical conductivity

40 % IACS

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Typical value

Chemical properties

PropertyValueComment

Aluminium

86.9 - 91.4 %

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Balance

Chromium

0.18 - 0.28 %

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Copper

1.2 - 2 %

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Iron

0 - 0.5 %

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Magnesium

2.1 - 2.9 %

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Manganese

0 - 0.3 %

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Other

0 - 0.15 %

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each 0.05, total 0.15, Rest Al,Total

Silicon

0 - 0.4 %

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Titanium

0 - 0.2 %

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Zinc

5.1 - 6.1 %

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Zirconium

0 - 0.25 %

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Technological properties

Property
Anodizing

moderate

Application areas

Tool making, mould making and model making; Aerospace; Military technology

Brazing

general: no brazing is known or developed

Corrosion properties

Stress corrosion cracking: Operational damage in areas with tensile stresses transverse to the grain structure, limited damage to laboratory samples, general: good, without protection in industrial or seawater atmosphere

General machinability

General: poor (O), good to acceptable

Soldering general

not recommended

Welding

Resistance welding: good

Workability

general (condition): not suitable