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Alloy Specifications, Chemistries, and Technical Data

201.0 ALUMINUM
Aliases
ANSI AA NUMBER 201.0
Common Name 201
UNS Designation A02010
Nearest Applicable Casting Standards
ASTM (B Series) B26
Federal (QQ-C- Series) 601e
Military (Mil-C- Series) 21180c
Specification Composition
Minimum Maximum
Silicon (Si) 0.1
Iron (Fe) 0.2
Copper (Cu) 4 5.2
Manganese (Mn) 0.2 0.5
Magnesium (Mg) 0.15 0.55
Titanium (Ti) 0.15 0.35
Silver (Ag) 0.4 1
Other (Total) 0.1
Specification Properties
(Heat Treat 'F' Denotes As Cast) Heat Treat State Minimum
Yield Strength (.5% extension under load) (ksi) T43 37
Elongation (2 inch gauge length) (%) T43 17
Tensile Strength (ksi) T6 65
Yield Strength (.5% extension under load) (ksi) T6 55
Elongation (2 inch gauge length) (%) T6 8
Tensile Strength (ksi) T7 68
Yield Strength (.5% extension under load) (ksi) T7 60
Elongation (2 inch gauge length) (%) T7 5.5
Typical Properties
Heat Treat State Typical
Density (lb/cu.in. @ 68F) 0.101
Electrical Conductivity (% IACS @ 68F) 33
Thermal Conductivity (cal/sec/sq cm/cm/C @ 25C) 0.29
Coefficient of Thermal Expansion (per F @ 68-212F) 19.3
Coefficient of Thermal Expansion (per F @ 68-572F) 24.7
Melting Range (Liquidus-Solidus)(F) 1060-1200
Resistance to Hot Cracking F
Pressure Tightness G
Fluidity G
Solidification Shrinkage Tendency F
Strength at Elevated Temperatures E
Corrosion Resistance F
Machinability E
Polishing E
Gas Welding F
Arc Welding F
Normally Heat Treated Yes
Annodizing Appearance VG
Electroplating E
Normally Heat Treated Yes
Annodizing Appearance VG
Electroplating E
Compressive Yield Strength (ksi) T6 56
Hardness (Brinell) (HB @ 500kg) T6 130
Shear Strength (ksi) T6 42
Compressive Yield Strength (ksi) T7 62
Hardness (Brinell) (HB @ 500kg) T7 146
Shear Strength (ksi) T7 40
Endurance Limit (K ksi) T7 14
Applications
Aerospace Housings
Aircraft Landing Gear Components
Ballistic Components
Cylinder Heads
Gear
Military Castings
Pistons
Pump Housings
Structural Castings For Automotive Truck & Trailer
Supercharger Impellers
Turbine
Great Castings
         St. Paul Foundry 954 Minnehaha Ave West St. Paul MN 55104 651-488-5567 www.stpaulfoundry.com
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St. Paul Foundry
954 Minnehaha Avenue West
Saint Paul, Minnesota 55104
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Use Good Design Principles

1. St. Paul Foundry is providing this information on metal characteristics for informational purposes only. Before making a final decision on alloy selection consider the following and all other appropriate design and specification principles. Please note that this is not an exhaustive list.

2. Consult the appropriate specification from an accredited specifying body (ASTM, SAE, Federal or Military) to determine current minimum values of this alloy.

3. Use appropriate design safety factors.

4. Use Failure Modes and Effects Analysis to help identify possible weaknesses in designs and specifications.

5. Use computerized stress analysis tools.

6. Use appropriate certification requirements for your casting suppliers. These may include test bars, chemical certifications, radiography, dye penetrant or other non-destructive testing methods.

7. Test your design to failure in a controlled environment. Then test it to failure in a simulation of its end use.

8. You and you alone are responsible for the suitability of your design and the materials that you select.

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