ASTM A732 Grade 21 As Cast

ASTM A732 Grade 21 As Cast general

Property Temperature Value Comment
Density 23.0 °C Density of 7.8 - 7.9 g/cm³ Typical for Nickel Chromium Molybdenum Steel

ASTM A732 Grade 21 As Cast thermal

Property Temperature Value Comment
Coefficient of thermal expansion 23.0 °C Coefficient of thermal expansion of 1E-5 - 1.3E-5 1/K Typical for Nickel Chromium Molybdenum Steel
Melting point - Melting point of 1382 - 1529 °C Typical for Nickel Chromium Molybdenum Steel
Specific heat capacity 23.0 °C Specific heat capacity of 448 - 670 J/(kg·K) Typical for Nickel Chromium Molybdenum Steel
Thermal conductivity 23.0 °C Thermal conductivity of 34 - 54 W/(m·K) Typical for Nickel Chromium Molybdenum Steel

ASTM A732 Grade 21 As Cast chemical

Property Value
Boron Boron of 7E-3 %
Carbon Carbon of 0.2 - 0.3 %
Chromium Chromium of 25 - 29 %
Iron Iron of 3 %
Manganese Manganese of 1 %
Molybdenum Molybdenum of 5 - 6 %
Nickel Nickel of 1.7 - 3.8 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.04 %

ASTM A732 Grade 21 As Cast mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 200 - 215 GPa Typical for Nickel Chromium Molybdenum Steel
Elongation A50 23.0 °C Elongation A50 of 10 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Nickel Chromium Molybdenum Steel
Tensile strength 23.0 °C Tensile strength of 360 MPa -

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