Copper C18400

Annealing Procedure

The annealing temperature for this alloy is unknown.

Applications

Used for resistance welding equipment components: tips, clamps, wheels; other electrical and mechanical power transmission devices, circuit breaker parts, and high-strength fasteners for elevated-temperature service.

Cold Workability

The capacity for cold working this alloy is rated as "excellent".

Forgeability

The hot forgeability rating of this alloy is 80. (Forging brass=100). The recommended hot working temperature for this alloy is between 1400-1600 F.

Hot Workability

This alloy's capacity for being hot formed is rated as "good".

Machinability

The machinability rating of this alloy is 20. (Where Alloy 360 FC Brass is 100).

Principle Design Features

High Copper Alloy, Chromium Copper. Moderately high elevated strength, conductivity 80% IACS.

Weldability

Soldering is rated as "good", brazing is rated as "good", oxyacetylene welding is "not recommended", gas shielded arc welding is rated as "good", coated metal arc welding is "not recommended", spot welding is "not recommended", seam welding is "not recommended", and butt welding is rated as "fair".

Known Forms

Coil

Coil

Disc

Disc

Flat Bar

Flat Bar

Foil

Foil

Hollow Bar

Hollow Bar

Pipe

Pipe

Plate

Plate

Ring

Ring

Rod

Rod

Round Bar

Round Bar

Round Tube

Round Tube

Sheet

Sheet

Square Bar

Square Bar

Strip

Strip

Additional Data

Specifications

C-19311,J461,J463,C18400

Chemical Elements

Arsenic0.005 max
Chromium0.4 - 1.2
Iron0.15 max
Lithium0.05 max
Phosphorus0.05 max
Remainder TotalCu, including Ag, + sum of named elements
Silicon0.1 max
Zinc0.7 max

Physical Properties

Density: 0.321lb/in³Density

Electrical Resistivity: 13µΩ·cmElectrical Resistivity

Melting Point: 1958°FMelting Point

Mechanical Properties

Modulus of Elasticity – Tension: 17MSIModulus of Elasticity – Tension

Thermal Expansion: 9.8µin/in·°FThermal Expansion