ASTM A579 Grade 73 Type 7, Maraging

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Related Standards

Equivalent Materials

This material data has been provided by ASTM.

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

PropertyTemperatureValueComment

Density

20.0 °C

7.8 - 7.9 g/cm³

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Typical for Nickel Molybdenum Steel

Mechanical

PropertyTemperatureValueComment

Charpy impact energy

20.0 °C

20 J

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Elastic modulus

20.0 °C

200 - 215 GPa

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Typical for Nickel Molybdenum Steel

Elongation

20.0 °C

9 %

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Poisson's ratio

20.0 °C

0.29 [-]

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Typical for Nickel Molybdenum Steel

Reduction of area

20.0 °C

40 %

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Tensile strength

20.0 °C

1930 MPa

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Yield Strength Rp0.2, short transverse

20.0 °C

1895 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

20.0 °C

9E-6 - 1.3E-5 1/K

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Typical for Nickel Molybdenum Steel

Melting point

1382 - 1529 °C

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Typical for Nickel Molybdenum Steel

Thermal conductivity

20.0 °C

44 W/(m·K)

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Typical for Nickel Molybdenum Steel

Chemical properties

PropertyValue

Aluminium

0.05 - 0.15 %

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Carbon

0.03 %

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Cobalt

8.5 - 9.5 %

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Manganese

0.1 %

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Molybdenum

4.6 - 5.2 %

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Nickel

18 - 19 %

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Phosphorus

0.01 %

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Silicon

0.1 %

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Sulfur

0.01 %

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Titanium

0.5 - 0.8 %

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