Topics CoveredIntroductionChemical CompositionPhysical PropertiesMechanical PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Heat Treatment
Leaded nickel-tin bronze UNS C93400 is a cast alloy of copper-tin-lead. The addition of nickel in the alloy enhances the strength and ductility. UNS C93400 copper alloy is resistant to biofouling and corrosion.
The following datasheet provides the chemical composition and properties of UNS C93400.
The chemical composition of UNS C93400 copper alloy is given in the following table.
The following table details the physical properties of UNS C93400 alloy.
The mechanical properties of UNS C93400 copper alloy are shown in the following table.
|Elongation at break
Equivalent designations to UNS C93400 include:
- ASTM B30
- ASTM B505
- QQ C390
Fabrication and Heat Treatment
UNS C93400 copper alloy has a machinability rating of 70.
The preferred welding techniques for UNS C93400 are soldering and brazing. Carbon arc welding, oxyacetylene welding, gas shielded arc welding and coated metal arc welding are not recommended for this alloy.
The stress relieving temperature of UNS C93400 copper alloy is 260°C (500°F). It does not respond to heat treatment.