ASTM A649 Class 1B Grade 1, Normalized, Liquid Quenched and Tempered

Equivalent material: ASTM Class 1B

ASTM A649 Class 1B Grade 1, Normalized, Liquid Quenched and Tempered general

Property Temperature Value Comment
Density 20.0 °C Density of 7.8 - 7.9 g/cm³ Typical for Nickel Chromium Molybdenum Steel

ASTM A649 Class 1B Grade 1, Normalized, Liquid Quenched and Tempered thermal

Property Temperature Value Comment
Coefficient of thermal expansion 20.0 °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
Thermal conductivity 20.0 °C Thermal conductivity of 34 - 54 W/(m·K) Typical for Nickel Chromium Molybdenum Steel

ASTM A649 Class 1B Grade 1, Normalized, Liquid Quenched and Tempered chemical

Property Value
Carbon Carbon of 0.4 - 0.6 %
Chromium Chromium of 0.65 - 0.95 %
Manganese Manganese of 0.6 - 0.95 %
Molybdenum Molybdenum of 0.2 - 0.45 %
Nickel Nickel of 1.55 - 2 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.15 - 0.35 %
Sulfur Sulfur of 0.025 %

ASTM A649 Class 1B Grade 1, Normalized, Liquid Quenched and Tempered mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 200 - 215 GPa Typical for Nickel Chromium Molybdenum Steel
Elongation A50 20.0 °C Elongation A50 of 12 % -
Poisson's ratio 20.0 °C Poisson's ratio of 0.29 [-] Typical for Nickel Chromium Molybdenum Steel
Reduction of area 20.0 °C Reduction of area of 30 % -
Tensile strength 20.0 °C Tensile strength of 1030 MPa -
Yield Strength Rp0.2, short transverse 20.0 °C Yield Strength Rp0.2, short transverse of 890 MPa -

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