DIN 17730 Grade G-NiCu30Si4 cast condition

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Description

The copper-nickel alloys show very good resistance to sea water and possesse good corrosion-resistance against non-oxidizing inorganic acids, especially against sulphuric, hydrofluoric and phosphorous acid, against most organic acids and especially against alkaline solutions. Furthermore, they are of excellent resistance to erosion and cavitation. The material G-NiCu30Si4 shows only low galling and fouling in running against other metallic materials. In comparison to the material G-NiCu30Si3(2.4367), the alloy G-NiCu30Si4 (2.4368) shows improved bearing and strength properties (higher Si-content!) The material is not weldable. G-NiCu30Si4 is applied in shipbuilding, in the chemical industry, in the oil, paper and food industry, for pickling plants, washing machines, as castings for pumps and pump components, fittings, valves and valve seats, nozzles, turbine blades, guide rails, sliding elements and bearings. The casting is well suitable for stress in terms of pressure-tightness.

Related Standards

DIN 17730

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	8.4 g/cm³ Show Material materials with Density of 8.4 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	120 - 156 GPa Show Material materials with Elastic modulus of 120 - 156 GPa	Typical for Nickel Copper Alloy
Elongation	20.0 °C	1 % Show Material materials with Elongation of 1 %
Hardness, Brinell	20.0 °C	260 [-] Show Material materials with Hardness, Brinell of 260 [-]
Tensile strength	20.0 °C	750 MPa Show Material materials with Tensile strength of 750 MPa
Yield strength Rp0.2	20.0 °C	500 MPa Show Material materials with Yield strength Rp0.2 of 500 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	1.1E-5 - 1.6E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.1E-5 - 1.6E-5 1/K	Typical for Nickel Copper Alloy
Melting point		1170 - 1365 °C Show Material materials with Melting point of 1170 - 1365 °C	Typical for Nickel Copper Alloy
Specific heat capacity	23.0 °C	418 - 540 J/(kg·K) Show Material materials with Specific heat capacity of 418 - 540 J/(kg·K)	Typical for Nickel Copper Alloy
Thermal conductivity	23.0 °C	16 - 45 W/(m·K) Show Material materials with Thermal conductivity of 16 - 45 W/(m·K)	Typical for Nickel Copper Alloy

Chemical properties

Property	Value
Aluminium	0.5 % Show Material materials with Aluminium of 0.5 %
Carbon	0.25 % Show Material materials with Carbon of 0.25 %
Copper	27 - 31 % Show Material materials with Copper of 27 - 31 %
Iron	1 - 2.5 % Show Material materials with Iron of 1 - 2.5 %
Lead	0.01 % Show Material materials with Lead of 0.01 %
Magnesium	0.12 % Show Material materials with Magnesium of 0.12 %
Manganese	0.5 - 1.5 % Show Material materials with Manganese of 0.5 - 1.5 %
Nickel	60 - 68 % Show Material materials with Nickel of 60 - 68 %
Silicon	3.5 - 4.5 % Show Material materials with Silicon of 3.5 - 4.5 %
Sulfur	0.01 % Show Material materials with Sulfur of 0.01 %
Titanium	0.2 % Show Material materials with Titanium of 0.2 %

Technological properties

Property
Processing methods	sand casting, separately cast test sample