Alloy Specifications, Chemistries, and Technical Data
| 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
|
|
|
|
St. Paul Foundry 954 Minnehaha
Ave West St. Paul MN 55104 651-488-5567 www.stpaulfoundry.com