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C64200 Aluminum Bronze Wrought BRONZES Copper-Aluminum Alloys (Aluminum Bronzes) true true https://api.copper.org/alloys.xhtml/C64200
Chemical Composition
Elements
Cu(1,2) Pb Sn Zn Fe Ni(3) Al As Mn Si
(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.5% min.
(3) Ni value includes Co.
Min (%) 6.3 1.5
Max (%) Rem 0.05 0.20 0.50 0.30 0.25 7.6 0.09 0.10 2.2
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.5% Ext
(ksi)		 Elongation
(%)		 Rockwell B scale Shear Strength
(ksi)		 Fatigue Strength**
(ksi)		 Section Size
(in)		 Cold Work
(%)
* Measured at room temperature, 68°F (20°C). ** Fatigue Strength: 100 x 106 cycles, unless indicated as [N] x 106.
Bar As Hot Extruded M30 75 Typ
 35 Typ
 32 Typ
 77 Typ
 0.75
Forgings As Hot Forged - Air Cooled M10 79 Typ
 38 Typ
 30 Typ
 78 Typ
 2
Rod As Hot Extruded M30 75 Typ
 35 Typ
 32 Typ
 77 Typ
 0.75
Hard H04 102 Typ
 68 Typ
 22 Typ
 94 Typ
 59 Typ
 50 Typ 0.75 15
Hard H04 93 Typ
 60 Typ
 26 Typ
 90 Typ
 1.5 10
Light Anneal O50 90 Typ
 55 Typ
 28 Typ
 89 Typ
 0.75
Light Anneal O50 92 Typ
 58 Typ
 22 Typ
 98 Typ
 0.5
Physical Properties
Melting Point - Liquidus°F 1840
Melting Point - Solidus°F 1800
Densitylb/cu in. at 68°F 0.278
Specific Gravity 7.69
Electrical Conductivity% IACS at 68°F 8
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 26
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 10
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 16000
Modulus of Rigidityksi 6000
Fabrication Properties
Technique Suitability
Soldering Not Recommended
Brazing Fair
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair
Spot Weld Fair
Seam Weld Fair
Butt Weld Fair
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Excellent
Forgeability Rating 80
Machinability Rating 60
Common Fabrication Processes
  • Forging
  • Hot Forming
  • Machining
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing 1100 1300
Hot Working Temperature 1300 1600
Typical uses
Product Category Product Reason Category Reason
Automotive Valve Guides, Automobile Engine Corrosion Resistance Corrosion Resistance
Valve Guides, Automobile Engine Friction & Wear Properties Galling Resistance
Valve Guides, Automobile Engine Friction & Wear Properties Wear Resistance
Valve Guides, Automobile Engine Mechanical Properties High Strength
Electrical Pole Line Hardware Conductivity (Electrical) Electrical Conductivity
Pole Line Hardware Corrosion Resistance Corrosion Resistance
Pole Line Hardware Friction & Wear Properties Wear Resistance
Pole Line Hardware Machining Characteristics Machinability
Pole Line Hardware Magnetic Properties Non-Magnetic
Fasteners Bolts Corrosion Resistance Corrosion Resistance
Bolts Machining Properties Machinability, Good
Bolts Mechanical Properties High Strength
Nuts Corrosion Resistance Corrosion Resistance
Nuts Forming Characteristics Formability
Nuts Machining Properties Machinability, Good
Nuts Mechanical Properties High Strength
Industrial Cams Corrosion Resistance Corrosion Resistance
Cams Friction & Wear Properties Wear Resistance
Cams Machining Properties Machinability, Good
Cams Mechanical Properties High Strength
Gears Corrosion Resistance Corrosion Resistance
Gears Friction & Wear Properties Wear Resistance
Gears Machining Characteristics Machinability
Gears Magnetic Properties Non-Magnetic
Valve Bodies Corrosion Resistance Corrosion Resistance
Valve Bodies Forming Characteristics Formability
Valve Bodies Machining Properties Machinability, Good
Valve Bodies Mechanical Properties High Strength
Valve Components Corrosion Resistance Corrosion Resistance
Valve Components Forming Characteristics Formability
Valve Components Machining Properties Machinability, Good
Valve Components Mechanical Properties High Strength
Valve Stems Corrosion Resistance Corrosion Resistance
Valve Stems Friction & Wear Properties Wear Resistance
Valve Stems Machining Characteristics Machinability
Valve Stems Magnetic Properties Non-Magnetic
Marine Hardware Corrosion Resistance Corrosion Resistance
Hardware Forming Characteristics Formability
Hardware Machining Properties Machinability, Good
Hardware Mechanical Properties High Strength
Applicable Specifications
Form Specific Sub-Form Application System Standard Description
Bar AMS 4631 ALUMINUM BRONZE RODS, BARS, AND FORGINGS
Bolts ASTM F468 NONFERROUS BOLTS, HEX CAP SCREWS, AND STUDS FOR GENERAL USE
Die Forgings AMS 4631 ALUMINUM BRONZE RODS, BARS, AND FORGINGS
Forgings, Die (Hot Pressed) ASME SB283 COPPER AND COPPER ALLOY DIE FORGINGS (HOT PRESSED)
ASTM B283/B283M COPPER AND COPPER ALLOY DIE FORGINGS (HOT PRESSED)
Nuts ASTM F467 NONFERROUS NUTS FOR GENERAL USE
Rod SAE J463 WROUGHT COPPER AND COPPER ALLOYS
SAE J461 WROUGHT AND CAST COPPER ALLOYS
AMS 4631 ALUMINUM BRONZE RODS, BARS, AND FORGINGS
Rod, Bar & Shapes Aluminum Bronze ASME SB150 ALUMINUM BRONZE ROD, BAR, AND SHAPES
Aluminum Bronze ASTM B150/B150M ALUMINUM BRONZE ROD, BAR AND SHAPES
Forgings ASTM B124/B124M COPPER AND COPPER-ALLOY FORGING ROD, BAR AND SHAPES
Screws ASTM F468 NONFERROUS BOLTS, HEX CAP SCREWS, AND STUDS FOR GENERAL USE
Studs ASTM F468 NONFERROUS BOLTS, HEX CAP SCREWS, AND STUDS FOR GENERAL USE
Corrosion Properties
Environmental Category Specific Environment Resistance Level Corrosion notes
Atmosphere Atmosphere, Industrial Not Recommended Affected by pollutants and other environmental factors. Hydrogen sulfide causes rapid tarnishing.