7075 Al-FORMODAL® BM-7075

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

Equivalent Materials

This material data has been provided by BIKA.

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 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

PropertyTemperatureValue

Elastic modulus

23.0 °C

72 GPa

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Elongation

23.0 °C

5 - 6 %

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Elongation A50

23.0 °C

7 %

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Hardness, HBW

23.0 °C

126 - 140 [-]

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Tensile strength

23.0 °C

430 - 475 MPa

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Yield strength

23.0 °C

340 - 390 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

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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Specific heat capacity

23.0 °C

862 J/(kg·K)

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Thermal conductivity

23.0 °C

130 - 160 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

23.0 °C

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

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Chemical properties

PropertyValueComment

Aluminium

Balance

Chromium

0.18 - 0.28 %

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Copper

1.2 - 2 %

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Iron

0.5 %

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Magnesium

2.1 - 2.9 %

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Manganese

0.3 %

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Other

0.15 %

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Total

Silicon

0.4 %

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Titanium

0.2 %

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Zinc

5.1 - 6.1 %

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Technological properties

Property
Anodizing

moderate

Application areas

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

Corrosion properties

moderate

General machinability

good

Soldering general

not recommended

Welding

Resistance welding: good