DIN 17280 Grade X7NiMo6 quenched and tempered (+QT)

Equivalent material: EN X7NiMo6, DIN 1.6349, JIS SL5N590, JIS SL5N60, EN 1.6349

DIN 17280 Grade X7NiMo6 quenched and tempered (+QT) general

Property	Temperature	Value
Density	20.0 °C	Density of 7.87 g/cm³

Property	Temperature	Value	Comment
Coefficient of thermal expansion	-100.0 °C	Coefficient of thermal expansion of 1.08E-5 1/K	-
-	20.0 °C	Coefficient of thermal expansion of 1.19E-5 1/K	-
-	100.0 °C	Coefficient of thermal expansion of 1.23E-5 1/K	-
-	200.0 °C	Coefficient of thermal expansion of 1.28E-5 1/K	-
-	300.0 °C	Coefficient of thermal expansion of 1.32E-5 1/K	-
-	400.0 °C	Coefficient of thermal expansion of 1.35E-5 1/K	-
Melting point	-	Melting point of 1382 - 1529 °C	Typical for Nickel Molybdenum Steel
Specific heat capacity	-100.0 °C	Specific heat capacity of 420 J/(kg·K)	-
-	20.0 °C	Specific heat capacity of 463 J/(kg·K)	-
-	100.0 °C	Specific heat capacity of 478 J/(kg·K)	-
-	200.0 °C	Specific heat capacity of 494 J/(kg·K)	-
-	300.0 °C	Specific heat capacity of 510 J/(kg·K)	-
-	400.0 °C	Specific heat capacity of 528 J/(kg·K)	-
Thermal conductivity	-100.0 °C	Thermal conductivity of 25.6 W/(m·K)	-
-	20.0 °C	Thermal conductivity of 32 W/(m·K)	-
-	100.0 °C	Thermal conductivity of 34.4 W/(m·K)	-
-	200.0 °C	Thermal conductivity of 35.7 W/(m·K)	-
-	300.0 °C	Thermal conductivity of 35.9 W/(m·K)	-
-	400.0 °C	Thermal conductivity of 34.8 W/(m·K)	-
Thermal diffusivity	-100.0 °C	Thermal diffusivity of 8.7 mm²/s	-
-	20.0 °C	Thermal diffusivity of 8.8 mm²/s	-
-	100.0 °C	Thermal diffusivity of 9 mm²/s	-
-	200.0 °C	Thermal diffusivity of 8.7 mm²/s	-
-	300.0 °C	Thermal diffusivity of 8.3 mm²/s	-
-	400.0 °C	Thermal diffusivity of 7.5 mm²/s	-

Property	Temperature	Value
Electrical resistivity	-100.0 °C	Electrical resistivity of 2.31E-7 Ω·m
-	20.0 °C	Electrical resistivity of 3.01E-7 Ω·m
-	100.0 °C	Electrical resistivity of 3.51E-7 Ω·m
-	200.0 °C	Electrical resistivity of 4.19E-7 Ω·m
-	300.0 °C	Electrical resistivity of 4.95E-7 Ω·m
-	400.0 °C	Electrical resistivity of 5.91E-7 Ω·m

Property	Temperature	Value	Comment
Elastic modulus	-100.0 °C	Elastic modulus of 209 GPa	-
-	20.0 °C	Elastic modulus of 203 GPa	-
-	100.0 °C	Elastic modulus of 198 GPa	-
-	200.0 °C	Elastic modulus of 191 GPa	-
-	300.0 °C	Elastic modulus of 183 GPa	-
-	400.0 °C	Elastic modulus of 175 GPa	-
Elongation	20.0 °C	Elongation of 18 %	-
Poisson's ratio	23.0 °C	Poisson's ratio of 0.29 [-]	Typical for Nickel Molybdenum Steel
Tensile strength	20.0 °C	Tensile strength of 640 - 840 MPa	-
Yield strength	20.0 °C	Yield strength of 480 - 490 MPa	-

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