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C614
Aluminum Bronze (614) Sheet
C61400
Overview
C61400 is a wrought aluminum bronze containing approximately 7% aluminum. It offers good strength (up to 76 ksi tensile), excellent corrosion resistance (especially to seawater, dilute sulfuric acid, and other corrosive media), and good wear resistance. C614 is an economical alternative to nickel aluminum bronze for applications not requiring the highest strength. It is commonly used for condenser tube sheets, bolts, marine hardware, and chemical processing equipment.
Chemical Composition
| Element | Min | Max |
|---|---|---|
| Copper (Cu) | Balance (~89%) | — |
| Aluminum (Al) | 6.00% | 8.00% |
| Iron (Fe) | 1.50% | 3.50% |
Alloy Designations
UNSC61400
ASTMB150, B169
TypeAluminum Bronze
Mechanical Properties
Tensile Strength76 ksi (524 MPa)
Yield Strength34 ksi (234 MPa)
Elongation35%
Hardness155 HB
Physical Properties
Density7.78 g/cm³ (0.281 lb/in³)
Melting Point1,027–1,046°C (1,880–1,915°F)
Electrical Conductivity14% IACS
Thermal Conductivity60.2 W/m·K
Typical Applications
- Condenser tube sheets
- Bolts and fasteners
- Marine hardware
- Corrosion-resistant tie rods
- Chemical process equipment
- Nuts, washers, and structural hardware
Fabrication & Joining
- Good hot and cold formability
- Weldable — gas shielded arc preferred
- Fair machinability
- Excellent resistance to seawater and sulfuric acid
- Available in bar, rod, plate, and sheet
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