DIN 17744 Grade NiCr20CuMo stabilized

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Description

The material NiCr20CuMo with the material number 2.4660 is applied in the form of strips, sheets, tubes, bars, wires and forgings for corrosion-resistant construction components. The alloy has an excellent resistance to corrosion in sulphuric, phosphoric and organic acids as well as in aqueous solutions of their salts. The resistance to nitric acid is good as well. As a result of the tailored chemical composition, the alloy also shows excellent resistance to intercrystalline corrosion and stress cracking corrosion. The molybdenum content ensures good resistance to pitting and crevice corrosion. NiCr20CuMo is applied in a wide range at temperatures of up to about 500 °C. Typical fields of application are e.g. plants for the production of sulphuric acid as well as processes that are based on sulphuric acid, such as, among others, extraction columns in the amino acid production and for the production of drugs, plants for the production of synthetic man-made materials and for the production of food as well as heat exchangers in refineries and for the production of phosphoric and hydrofluoric acid. Processing properties: Formability: good Weldability: satisfactory

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Temperature	Value
Density	20.0 °C	8.1 g/cm³ Show Material materials with Density of 8.1 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	195 GPa Show Material materials with Elastic modulus of 195 GPa
Elongation	20.0 °C	30 % Show Material materials with Elongation of 30 %
	100.0 °C	40 % Show Material materials with Elongation of 40 %
	200.0 °C	40 % Show Material materials with Elongation of 40 %
	300.0 °C	40 % Show Material materials with Elongation of 40 %

Hardness, Brinell	20.0 °C	217 [-] Show Material materials with Hardness, Brinell of 217 [-]
Reduction of area	20.0 °C	50 % Show Material materials with Reduction of area of 50 %
Tensile strength	20.0 °C	550 MPa Show Material materials with Tensile strength of 550 MPa
	100.0 °C	520 MPa Show Material materials with Tensile strength of 520 MPa
	200.0 °C	500 MPa Show Material materials with Tensile strength of 500 MPa
	300.0 °C	480 MPa Show Material materials with Tensile strength of 480 MPa
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Yield strength Rp0.2	20.0 °C	240 MPa Show Material materials with Yield strength Rp0.2 of 240 MPa
	100.0 °C	210 MPa Show Material materials with Yield strength Rp0.2 of 210 MPa
	200.0 °C	180 MPa Show Material materials with Yield strength Rp0.2 of 180 MPa
	300.0 °C	140 MPa Show Material materials with Yield strength Rp0.2 of 140 MPa
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Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	1.5E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.5E-5 1/K
	200.0 °C	1.57E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.57E-5 1/K
	300.0 °C	1.63E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.63E-5 1/K
	400.0 °C	1.68E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.68E-5 1/K
	500.0 °C	1.72E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.72E-5 1/K
	600.0 °C	1.74E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.74E-5 1/K
	700.0 °C	1.76E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.76E-5 1/K
	800.0 °C	1.78E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.78E-5 1/K
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Max service temperature, long		0 - 500 °C Show Material materials with Max service temperature, long of 0 - 500 °C
Melting point		1200 - 1480 °C Show Material materials with Melting point of 1200 - 1480 °C	Typical for Nickel Chromium Iron Alloy
Specific heat capacity	20.0 °C	500 J/(kg·K) Show Material materials with Specific heat capacity of 500 J/(kg·K)
Thermal conductivity	20.0 °C	12.3 W/(m·K) Show Material materials with Thermal conductivity of 12.3 W/(m·K)
	100.0 °C	13.1 W/(m·K) Show Material materials with Thermal conductivity of 13.1 W/(m·K)
	200.0 °C	14.8 W/(m·K) Show Material materials with Thermal conductivity of 14.8 W/(m·K)
	300.0 °C	16.5 W/(m·K) Show Material materials with Thermal conductivity of 16.5 W/(m·K)
	400.0 °C	18.1 W/(m·K) Show Material materials with Thermal conductivity of 18.1 W/(m·K)
	500.0 °C	19.7 W/(m·K) Show Material materials with Thermal conductivity of 19.7 W/(m·K)
	600.0 °C	21 W/(m·K) Show Material materials with Thermal conductivity of 21 W/(m·K)
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Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	1.08E-6 Ω·m Show Material materials with Electrical resistivity of 1.08E-6 Ω·m

Chemical properties

Property	Value
Carbon	0.07 % Show Material materials with Carbon of 0.07 %
Chromium	19 - 21 % Show Material materials with Chromium of 19 - 21 %
Cobalt	1.5 % Show Material materials with Cobalt of 1.5 %
Copper	3 - 4 % Show Material materials with Copper of 3 - 4 %
Iron	28.4 % Show Material materials with Iron of 28.4 %
Manganese	2 % Show Material materials with Manganese of 2 %
Molybdenum	2 - 3 % Show Material materials with Molybdenum of 2 - 3 %
Nickel	32 - 38 % Show Material materials with Nickel of 32 - 38 %
Phosphorus	0.03 % Show Material materials with Phosphorus of 0.03 %
Silicon	1 % Show Material materials with Silicon of 1 %
Sulfur	0.015 % Show Material materials with Sulfur of 0.015 %

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