DIN 17205 Grade GS-33NiCrMo7-4-4 quenched in a liquid medium and tempered, strength grade II

DIN 17205 Grade GS-33NiCrMo7-4-4 quenched in a liquid medium and tempered, strength grade II introduction

The material GS-33 NiCrMo 7 4 4 is applicable up to 300 degrees C. The material is chiefly applied for defense equipment.

Equivalent material: DIN 1.6740, EN GS-33NiCrMo7-4-4, EN 1.6740

Property	Temperature	Value
Density	20.0 °C	Density of 7.85 g/cm³

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	Coefficient of thermal expansion of 1.1E-5 1/K	-
-	200.0 °C	Coefficient of thermal expansion of 1.2E-5 1/K	-
-	300.0 °C	Coefficient of thermal expansion of 1.3E-5 1/K	-
Max service temperature, long	-	Max service temperature, long of 0 - 300 °C	-
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

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	Elastic modulus of 211 GPa	-
-	100.0 °C	Elastic modulus of 204 GPa	-
-	200.0 °C	Elastic modulus of 196 GPa	-
-	300.0 °C	Elastic modulus of 186 GPa	-
Elongation	20.0 °C	Elongation of 10 %	-
Poisson's ratio	20.0 °C	Poisson's ratio of 0.29 [-]	Typical for Nickel Chromium Molybdenum Steel
Tensile strength	20.0 °C	Tensile strength of 1050 - 1250 MPa	-
Yield strength Rp0.2	20.0 °C	Yield strength Rp0.2 of 950 MPa	-

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