ASTM A752 Grade 4720 Annealed

Equivalent material: AISI 4720H, SAE 4720H, UNS H47200, AISI 4720, SAE 4720, UNS G47200

ASTM A752 Grade 4720 Annealed general

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

ASTM A752 Grade 4720 Annealed 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 A752 Grade 4720 Annealed chemical

Property Value
Carbon Carbon of 0.17 - 0.22 %
Chromium Chromium of 0.35 - 0.55 %
Copper Copper of 0.35 %
Manganese Manganese of 0.5 - 0.7 %
Molybdenum Molybdenum of 0.15 - 0.25 %
Nickel Nickel of 0.9 - 1.2 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.15 - 0.35 %
Sulfur Sulfur of 0.04 %

ASTM A752 Grade 4720 Annealed mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 200 - 215 GPa Typical for Nickel Chromium Molybdenum Steel
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 570 MPa -

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