Sep 13 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Fabrication and Heat Treatment
Machinability
Welding
Forging
Hot Working
Cold Working
Annealing
Applications
Introduction
Pure copper has high electrical and thermal conductivity. Alloys can be freely formed by the copper. UNS C11300 silver-bearing tough Pitch copper has 101% IACS conductivity, and high ductility. It is available in the form of wire, rod, and tube.
Chemical Composition
The following table shows the chemical composition of UNS C11300 copper.
|
Element |
Content (%) |
|
Cu |
99.90 |
|
O |
0.04 |
|
Ag |
0.025 |
Physical Properties
The physical properties of UNS 11300 copper are tabulated below.
|
Properties |
Metric |
Imperial |
|
Density |
8.89 - 8.94 g/cm3 |
0.321 - 0.323 lb/inÂ3 |
Mechanical Properties
The mechanical properties of UNS C11300 copper are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength, ultimate |
221 - 455 MPa |
32100 - 66000 psi |
|
Tensile strength, yield( depending on temper) |
69.0 - 365 MPa |
10000 - 52900 psi |
|
Elongation at break (in 101.6 mm (4 in.) |
55% |
55% |
|
Modulus of elasticity |
117 GPa |
16970 ksi |
|
Poisson’s ratio |
0.34 |
0.34 |
|
Machinability (UNS C36000 (free-cutting brass) = 100%) |
20% |
20% |
|
Shear modulus |
44 GPa |
6380 ksi |
Other Designations
Other designations that are equivalent to UNS C11300 copper are listed in the following table.
|
ASTM B1 |
ASTM B188 |
ASTM B246 |
ASTM B442 |
ASTM B506 |
|
ASTM B116 |
ASTM B189 |
ASTM B272 |
ASTM B47 |
ASTM B623 |
|
ASTM B152 |
ASTM B2 |
ASTM B286 |
ASTM B470 |
ASTM B8 |
|
ASTM B172 |
ASTM B224 |
ASTM B298 |
ASTM B48 |
MIL B-20292 |
|
ASTM B173 |
ASTM B226 |
ASTM B3 |
ASTM B49 |
QQ B575 |
|
ASTM B174 |
ASTM B228 |
ASTM B33 |
ASTM B496 |
SAE J461 |
|
ASTM B187 |
ASTM B229 |
ASTM B355 |
ASTM B5 |
SAE J463 |
Fabrication and Heat Treatment
Machinability
Machinability of UNS C11300 copper is about 20%.
Welding
UNS C11300 copper can be welded by using various welding methods such as brazing, soldering, butt welding, and gas shielded arc welding. Seam welding, oxyacetylene welding, coated metal arc welding, and spot welding methods should not be used for welding this alloy.
Forging
UNS C11300 copper can be forged at 760 to 871°C (1400 to 1600°F). This alloy has hot forgeability of about 65%.
Hot Working
UNS C11300 copper has good hot working capacity.
Cold Working
UNS C11300 copper has good cold working capacity.
Annealing
UNS C11300 copper can be annealed at 483 to 760°C (900 to1400°F).
Applications
UNS C11300 copper is mainly used in commutator segments and electrical components.