Bronze C72700

Annealing Procedure

The annealing temperature for this alloy is 1350 F.

Cold Workability

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

Forgeability

The hot forgeability rating of this alloy is unknown. (Forging Brass=100). The recommended hot working temperature for this alloy is between 1200 and 1600 F.

Hot Workability

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

Machinability

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

Principle Design Features

Copper Nickels (Copper-Nickel),

Weldability

Soldering of this alloy is rated as "excellent", brazing is rated as "excellent", oxyacetylene welding is "unknown", gas shielded arc welding is rated as "excellent", coated metal arc welding is "unknown", spot welding is rated as "excellent", seam welding is rated as "excellent", and butt welding is rated as "excellent".

Known Forms

Coil

Coil

Disc

Disc

Flat Bar

Flat Bar

Foil

Foil

Hexagon Bar

Hexagon Bar

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

B740,C72700

Chemical Elements

Iron0.5 max
Lead0.02 max
Magnesium0.15 max
Manganese0.05 - 0.3
NickelIncludes Co
Niobium0.1 max
Remainder EachCu, including Ag
Remainder TotalCu + sum of named elements 99.7 min
Tin5.5 - 6.5
Zinc0.5 max

Physical Properties

Density: 0.321lb/in³Density