Nov 13 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working AnnealingApplications
Introduction
UNS 11400 silver-bearing tough pitch copper has ductility, anneal resistance, and conductivity of 101% IACS. The following datasheet will discuss in detail about UNS 11400 copper.
Chemical Composition
The following table shows the chemical composition of the UNS 11400 copper.
| Element |
Content (%) |
| Cu |
99.9 |
| O |
0.04 |
| Ag |
0.0313 |
Physical Properties
The physical properties of the UNS 11400 copper are given in the following table.
| Properties |
Metric |
Imperial |
| Density |
8.89 - 8.94 g/cm3 |
0.321 - 0.323 lb/in3 |
Mechanical Properties
The mechanical properties of UNS 11400 copper are tabulated below.
| 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.)) |
55.00% |
55.00% |
| Modulus of elasticity |
115 GPa |
16700 ksi |
| Poissons ratio (calculated) |
0.300 |
0.300 |
| Machinability (UNS C36000 (free-cutting brass) = 100%) |
20% |
20% |
| Shear modulus |
44.0 GPa |
6380 ksi |
Other Designations
The designations that are equivalent to UNS 11400 copper are outlined in the following table.
| ASTM B1 |
ASTM B187 |
ASTM B229 |
ASTM B355 |
ASTM B496 |
| ASTM B116 |
ASTM B188 |
ASTM B246 |
ASTM B442 |
ASTM B5 |
| ASTM B152 |
ASTM B189 |
ASTM B272 |
ASTM B47 |
ASTM B506 |
| ASTM B172 |
ASTM B2 |
ASTM B286 |
ASTM B470 |
ASTM B623 |
| ASTM B173 |
ASTM B224 |
ASTM B298 |
ASTM B48 |
ASTM B8 |
| ASTM B174 |
ASTM B226 |
ASTM B3 |
ASTM B49 |
MIL B-20292 |
| QQ B575 |
SAE J461 |
SAE J463 |
|
|
Fabrication and Heat Treatment
Machinability
The machinability rate of 11400 copper is 20%.
Welding
Welding techniques such as soldering, brazing, gas shielded arc welding, oxyacetylene welding and butt welding are preferred for 11400 copper. Other welding techniques such as coated metal arc welding, spot welding and seam welding are not recommended.
Forging
Forging of 11400 copper is performed at hot working temperatures ranging from 760 to 871°C (1400 to 1600°F). The hot forgeability rate of this metal is 65%.
Hot Working
11400 copper has excellent hot working property.
Cold Working
11400 copper has excellent cold working property.
Annealing
11400 copper is annealed at temperatures ranging from 482 to 760°C (900 to 1400°F).
Applications
The following are the major applications of the UNS 11400 copper:
- Electrical components
- Commutator segments