AISI 4340 Quenched And Tempered

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Equivalent Materials

This material data has been provided by MakeItFrom.com.

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

PropertyValueTemperature

Density

7.8 g/cm³

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23.0 °C

Mechanical

PropertyValueTemperatureComment

Elastic modulus

210 GPa

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23.0 °C

Elongation

14 %

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23.0 °C

Poisson's ratio

0.29 [-]

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23.0 °C

Typical for Nickel Chromium Molybdenum Steel

Tensile strength

1210 MPa

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23.0 °C

Yield strength

1150 MPa

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23.0 °C

Thermal

PropertyValueTemperatureComment

Coefficient of thermal expansion

1.2E-5 1/K

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23.0 °C

Melting point

1382 - 1529 °C

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Typical for Nickel Chromium Molybdenum Steel

Specific heat capacity

450 J/(kg·K)

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23.0 °C

Thermal conductivity

34 - 54 W/(m·K)

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23.0 °C

Typical for Nickel Chromium Molybdenum Steel

Chemical properties

Property

Carbon

0.38 - 0.43 %

Chromium

0.7 - 0.9 %

Iron

95.1 - 96.3 %

Manganese

0.6 - 0.8 %

Molybdenum

0.2 - 0.3 %

Nickel

1.7 - 2 %

Phosphorus

0 - 0.04 %

Silicon

0.15 - 0.35 %

Sulfur

0 - 0.04 %