AMPCOLOY® 940 Sand castings

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Description

AMPCOLOY® 940 is a patented alloy which meets the demands of users of the RWMA class 3 alloys without beryllium. In the industrialized countries, stricter health and safety instructions on the use of noxious elements have forced AMPCO METAL to develop this new alloy. It replaces the AMPCOLOY® 95 in practically all applications.

Equivalent Materials

RWMA Class 3

This material data has been provided by AMPCO METAL.

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	Value	Temperature
Density	8.71 g/cm³ Show Supplier Material materials with Density of 8.71 g/cm³ at 23.0 °C	23.0 °C

Mechanical

Property	Value	Temperature	Comment
Elastic modulus	131 GPa Show Supplier Material materials with Elastic modulus of 131 GPa at 23.0 °C	23.0 °C
Elongation A5	8 % Show Supplier Material materials with Elongation A5 of 8 % at 23.0 °C	23.0 °C
Hardness, HBW	210 [-] Show Supplier Material materials with Hardness, HBW of 210 [-] at 23.0 °C	23.0 °C	HBW 10/3000
Hardness, Rockwell B	95 [-] Show Supplier Material materials with Hardness, Rockwell B of 95 [-] at 23.0 °C	23.0 °C
Reduction of area	18 % Show Supplier Material materials with Reduction of area of 18 % at 23.0 °C	23.0 °C
Tensile strength	544 MPa Show Supplier Material materials with Tensile strength of 544 MPa at 23.0 °C	23.0 °C
Yield strength Rp0.5	475 MPa Show Supplier Material materials with Yield strength Rp0.5 of 475 MPa at 23.0 °C	23.0 °C

Thermal

Property	Value	Temperature
Coefficient of thermal expansion	1.75E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.75E-5 1/K at 23.0 °C	23.0 °C
Specific heat capacity	380 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 380 J/(kg·K) at 23.0 °C	23.0 °C
Thermal conductivity	208 W/(m·K) Show Supplier Material materials with Thermal conductivity of 208 W/(m·K) at 23.0 °C	23.0 °C

Electrical

Property	Value	Temperature
Electrical conductivity	2.80E+7 S/m Show Supplier Material materials with Electrical conductivity of 2.80E+7 S/m at 23.0 °C	23.0 °C
Specific Electrical conductivity	48 % IACS Show Supplier Material materials with Specific Electrical conductivity of 48 % IACS

Chemical properties

Property
Chromium	0.4 %
Copper		Balance
Nickel	2.5 %
Silicon	0.7 %

Technological properties

Property
Application areas	AMPCOLOY® 940 is used wherever a good electrical or thermal conductivity is required together with high mechanical properties: Electrode holders, parts for energy engineering

AMPCOLOY® 940 Sand castings

Description

Equivalent Materials

Ashby charts

Applications

Materials by this supplier

Use cases

Properties