Oct 3 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesOther DesignationsFabrication and Heat Treatment Annealing Cold Working Welding Forging Machinability Hot Working
Introduction
UNS C11100 electrolytic tough pitch copper alloys are anneal resistant. The following datasheet covers the chemical composition, physical and mechanical properties, designations and fabrication and heat treatment of UNS C11100 copper alloys.
Chemical Composition
The chemical composition of UNS C11100 copper alloys is outlined in the following table.
| Element |
Content (%) |
| Cu |
99.90 |
| O |
0.04 |
| Cd |
0.01 |
Physical Properties
The following table shows the physical properties of UNS C11100 copper alloys.
| Properties |
Metric |
Imperial |
| Density |
8.89 - 8.94 g/cm3 |
0.321 - 0.323 lb/in3 |
Mechanical Properties
The mechanical properties of UNS C11100 copper alloys are displayed in the following table.
| Properties |
Metric |
Imperial |
| Hardness, rockwell B (depending on temper) |
10.0-62.0 |
10.0-62.0 |
| Tensile strength, ultimate |
455 MPa |
66000 psi |
| Tensile strength, yield (depending on temper) |
69.0-365 MPa |
10000-52900 psi |
| Elongation at break (in 150 cm) |
1.50% |
1.50% |
| Modulus of elasticity |
117 GPa |
16969 ksi |
| Poissons ratio |
0.34 |
0.34 |
| Machinability (UNS C36000 (free-cutting brass) = 100%) |
20% |
20% |
| Shear modulus |
44.0 GPa |
6380 ksi |
Other Designations
Equivalent materials to UNS C11100 copper alloys are:
Fabrication and Heat Treatment
Annealing
UNS C11100 copper alloys are annealed at temperatures between 482 and 760°C (900 and 1400°F).
Cold Working
UNS C11100 copper alloys have excellent cold working capacity.
Welding
Welding methods not recommended for UNS C11100 copper alloys include oxyacetylene welding, coated metal arc welding, seam welding and spot welding. Butt welding and gas shielded arc welding can be performed on these copper alloys including brazing and soldering processes.
Forging
Temperatures between 760 and 871°C (1400 and 1600°F) are used for forging UNS C11100 copper alloys whose hot forgeability rating is 65%.
Machinability
The machinability rating for C11100 copper alloys is 20%.
Hot Working
C11100 copper alloys have excellent hot forming properties.