Aluminium Bronze Copper Alloy UNS C61400

Aug 20 2012

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Fabrication and Heat Treatment
     Machinability
     Welding
     Forging
     Hot Working
     Annealing

Introduction

Aluminium bronze copper alloy UNS C61400 has excellent corrosion resistance. Aluminium present in UNS C61400 enhances the strength of the alloy. 

The following datasheet provides the chemical composition and properties of UNS C61400 copper alloy.

Chemical Composition

The chemical composition of UNS C61400 is given in the following table.

Element Content (%)
Copper, Cu 91.0
Aluminium, Al 7.0
Iron, Fe 1.5-3.5
Manganese, Mn ¡Ü1.0
Zinc, Zn ¡Ü0.2
Phosphorus, P ¡Ü0.015
Lead ¡Ü0.01
Other ¡Ü0.5 

Physical Properties

The following table shows the physical properties of UNS C61400 copper alloy.

Properties Metric Imperial
Density 07.89 g/cm3 0.285 lb/in3
Melting point - liquidus 1046¡ãC 1915¡ãF
Melting point - solidus 1041¡ãC 1905¡ãF

Mechanical Properties

The mechanical properties of UNS C61400 are outlined in the following table.

Properties Metric Imperial
Poisson's ratio 0.34 0.34
Elastic modulus 117 GPa 16969 ksi

Other Designations

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Equivalent designations to UNS C61400 copper alloy include:

  • ASME SB150
  • ASME SB169
  • ASME SB171
  • ASTM B111
  • ASTM B150
  • ASTM B169
  • ASTM B171
  • ASTM B315
  • ASTM B432
  • ASTM B608
  • ASTM F467
  • ASTM F468
  • QQ C450
  • SAE J461
  • SAE J463

Fabrication and Heat Treatment

Machinability

Copper alloy UNS C61400 alloy has a machinability rating of 20.

Welding

The preferred welding techniques for UNS C61400 alloy are brazing, gas shielded arc welding, coated metal arc welding, spot welding and seam welding. Soldering and oxyacetylene welding are not recommended for UNS C61400 copper alloy.

Forging

Aluminium bronze alloy UNS C61400 can be forged at temperatures ranging between 787 and 926¡ãC (1450 and 1700¡ãF).

Hot Working

UNS C61400 has good hot forming capacity.

Annealing

The annealing temperature for UNS C61400 copper alloy is between 1125 and 1650¡ãF.

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