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For over a century, AMPCO METAL has pioneered and produced the best metal solutions for the world’s products, applications and industries.

Extruded
Forged
Sand Casted

Description

  • High Conductivity: This high copper alloy exhibits exceptional electrical and thermal conductivity, making it ideal for applications where efficient heat and power transfer are critical.
  • Impressive Strength: It offers remarkable tensile strength and hardness, ensuring durability and longevity in demanding industrial environments.
  • Safety Compliance: Replaces RWMA Class 3 alloys without beryllium, meeting stringent health and safety regulations for hazardous elements.
  • Versatile Applications: It is a versatile material suitable for a wide range of applications, making it a top choice for a variety of industries where safety and performance are paramount.
Properties and Specifications



AMPCOLOY® 940 is a high-performance copper alloy designed to excel in a variety of industrial applications. This patented alloy has exceptional properties, including high electrical and thermal conductivity, making it an ideal choice for electrical and power components. With impressive tensile strength and hardness, this high copper alloy ensures durability and longevity in demanding environments. It also replaces non-beryllium RWMA Class 3 alloys to meet stringent health and safety regulations. This versatile material is suitable for a wide range of applications, including electrode holders, welding components, plunger tips, and power generation parts, making it a top choice for industries where safety and performance are paramount.

Applications



AMPCOLOY® 940 is used in a wide variety of industries due to its superior properties. This high conductivity bronze alloy is used extensively in the manufacture of electrode holders, welding components such as spot welding electrodes and seam welding discs, and various dies for welding stainless steel and Monel®. It also plays a critical role in cold-chamber aluminum die-casting machines, where its durability and heat resistance are paramount. In addition, it is an excellent choice for plastic injection molding, including injection nozzles and cooling pins, and for manufacturing brake drums for paper winding rolls. Its wide range of applications makes it an indispensable material for industries seeking superior performance and safety compliance.

Best used

For energy engineering parts, seam welding shafts, spot welding electrodes, seam welding discs, projection and butt welding dies, plunger tips fo cold chamber aluminium, cooling pins, injection nozzles.

Ideally suited for

Wherever a good electrical or thermal conductivity is required together with high mechanical properties.

Document Downloads

Extruded
Forged
Sand Casted
AMPCOLOY® 940 EX E
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AMPCOLOY® 940 EX E US
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AMPCO® Special Alloys Application
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AMPCOLOY® 940 FRM E
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AMPCOLOY® 940 FRM E US
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AMPCO® Special Alloys Application
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AMPCOLOY® 940 SC E
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AMPCOLOY® 940 SC E US
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AMPCO® Special Alloys Application
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Dimensional Capabilities

View our product dimensional capabilities.

Dimensional Capabilities

Mechanical Properties Composition

These are nominal values as these tables are used for comparative purposes. If specific figures are required, please go to the product page and download the technical data sheets for exact specs.

D kg/dm3
8.71
Rm Mpa
689
RP 0,5 Mpa
517
A5 %
13
HBW
210
W/m.°K
208
IACS
30%

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