Copper Beryllium Alloys Technical Papers

1. Hardness Conversion Testing for Copper Alloys

   Tests exist to measure a material’s hardness with variations of the indenter shape, indenter material, force and penetration speed, but conversions are required to compare hardness values obtained in one test method with another. Materion created this detailed tech brief to outline hardness conversions for copper alloys.

2. Producing Good Screw Machined Parts from High Performance Copper Alloy Rod

   This technical brief addresses common problems encountered when screw machining Materion's rod and wire products. It goes on to describe how to avoid such problems in order to produce good parts out of automated machining process. This covers Alloy M25, Brush 1915® alloy and ToughMet® alloy.

3. Chemical Analysis at Materion

   The paper describes the methods Materion uses for precise control of chemical constituency of high reliability components.

4. Galling Resistance of 25 Alloy and ToughMet 3 when Self-Mated and Mated with Various Materials

   Galling occurs when metals adhere to each other during sliding contact. This document explains why ToughMet® 3 and 25 alloys are galling resistant when used by themselves and are resistant when used with many other popular alloys.

5. Storage of Copper-based Strip Products

   Controlling the storage environment for copper strip alloys helps maintain good surface quality for an extended period of time.

6. Temperature Dependent Tensile Properties of Materion Alloys: Alloy 25, Alloy 3, ToughMet® 3 Alloy, PerforMet® Alloy and 10X Rod

   When designing with Alloy 25, Alloy 3 and ToughMet® 3 Rod in accordance to ASTM E21, knowledge of temperature dependence of the tensile properties is needed. Data has been expanded to include PerforMet® alloy and Alloy 10X. This document helps the design engineer.

7. Testing of Molded Plastic Food Containers for Beryllium Transfer

   Materion's Product Stewardship department demonstrates that the use of copper beryllium alloys does not transfer to the finished molded plastic part.

8. Anti-friction Behavior Of Copper-based Bearing Alloys

   In a representative test for coefficient of friction, copper beryllium and ToughMet® alloys showed a favorable combination of high strength and low friction.

9. Brazing Copper Beryllium

   This paper discusses procedures for brazing copper beryllium and describes methods that ensure proper hardness and strength in the resulting bond.

10. Cavitation Resistance of Copper Alloys

    This article discusses cavitation resistance of selected copper alloys.

11. Cleaning Copper Beryllium

    Techniques to remove tarnish and surface oxides on copper beryllium that can interfere with surface operations like plating or soldering.

12. Copper Beryllium Strip Temper Selection

    Guidelines for selecting the proper alloys and tempers of copper beryllium strip material for your application.

13. Electrical Discharge Machining of Copper Beryllium

    An overview of the two types of electrical discharge machining used to machine copper beryllium in its age hardened state.

14. Forging And Extruding Copper Beryllium

    Elevated temperature forming operations, such as forging and extrusion, allow for efficient large scale shape and dimensional changes in the manufacture of metallic components.

15. Formability of Strip Products

    This paper discusses formability of copper strip which is dependent on a number of variables.

16. A Guide to Galvanic Corrosion

    Galvanic corrosion can occur when two or more dissimilar metals contact each other in an electrolytic environment.

17. Hardness Testing Of High Performance Copper Alloys

    Indention hardness tests are the most common procedures to evaluate the mechanical properties of copper alloy components.

18. Heat Treating Copper Beryllium

    Wrought copper beryllium obtains its high strength, conductivity and hardness through a combination of cold work and a thermal process called age hardening.

19. Machining Copper Beryllium

    Machining characteristics of copper beryllium alloys are determined by the alloy’s temper and form.

20. Magnetic Properties Of Copper Beryllium

    Copper beryllium alloys are frequently specified to operate in magnetic fields because they only minimally disturb the magnetic field and retain no remnant magnetism after exposure.

21. Resistance Welding Copper Beryllium

    An overview of the different techniques available for electric resistance welding of copper beryllium alloys.

22. Shape Distortion Of Copper Beryllium

    The hardening process can lead to shape distortion of parts unless care is exercised to prevent it.

23. Soldering Copper Alloy Strip

    Directions for soldering copper beryllium and copper nickel tin alloys for electronic applications.

24. Stability of Copper Alloys at Elevated Temperatures

    Detailed charts displaying the room temperature properties of copper beryllium and ToughMet alloys after exposure to elevated temperature.

25. Surface Coating High Performance Copper Alloy Strip

    The choice of coating can mean the difference between good electrical contact and a failed connection.

26. Tensile Testing High Performance Alloy Products

    The mechanical properties of Materion's wrought alloys are most frequently measured by the simple uniaxial tensile test.

27. Welding Copper Beryllium

    Welding provides the highest strength bond when joining copper beryllium to itself or to other metals.

28. Atlas of Stress Relaxation Curves for Copper Beryllium and Selected Copper Alloy Spring Materials

    This paper presents stress relaxation data for all commercial tempers of C17200, C17510, C17410 copper beryllium alloys and C72900 (BrushForm® 158) copper nickel tin alloys.

29. Corrosion Resistance of Copper Beryllium Alloys

    Review of corrosion resistance data and the corrosion behavior of copper beryllium in a number of common environments.

30. Metallographic Techniques for Copper Beryllium and Nickel Beryllium Alloys

    This paper outlines the standard procedures for selecting, mounting, grinding and polishing a metallographic specimen to reveal the metallurgical structure.