Nov 16 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Fabrication and Heat treatment
Annealing
Cold Working
Hot Working
Welding
Forging
Machinability
Applications
Introduction
The UNS numbers C10100 to C1300 represent commercially pure copper. The metal with which copper is alloyed determines the high electrical and thermal conductivity of the metal as well as its resistance to corrosion. The alloying metals also modify the electrical conductivity of copper. The behavior of various grades of unalloyed copper depends on the amount of impurities present in it.
The following data sheet discusses in detail about oxygen free low phosphorus copper UNS C10800.
Chemical Composition
The following table details the chemical composition of UNS C10800 oxygen free low phosphorus copper.
|
Element |
Content (%) |
|
Cu |
99.95 |
|
P |
0.009 |
Physical Properties
The physical properties of UNS C10800 oxygen free low phosphorus copper are outlined in the table below.
|
Properties |
Metric |
Imperial |
|
Density |
8.94 g/cm3 |
0.323 lb/in3 |
|
Melting point |
1083°C |
1981°F |
Mechanical Properties
The mechanical properties of UNS C10800 oxygen free low phosphorus copper are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Hardness, Rockwell B |
10 |
10 |
|
Hardness, Rockwell F |
60 |
60 |
|
Hardness, HR30T |
25 |
25 |
|
Tensile strength, ultimate |
250 MPa |
36300 psi |
|
Tensile strength, yield |
195 MPa |
28300 psi |
|
Poissons ratio |
0.307 |
0.307 |
|
Modulus of elasticity |
115 GPa |
16700 ks |
|
Machinability |
20% |
20% |
|
Shear modulus |
44.0 GPa |
6380 ks |
|
Shear strength |
170 MPa |
24700 psi |
Thermal Properties
The following table shows the thermal properties of UNS C10800 oxygen free low phosphorus copper.
|
Properties |
Metric |
Imperial |
|
Specific heat capacity |
0.385 J/g-°C |
0.0920 BTU/lb-°F |
|
Thermal conductivity |
350 W/m-K |
2430 BTU-in/hr-ft2-°F |
|
Solidus |
1083°C |
1981°F |
|
Liquidus |
1083 °C |
1981°F |
Other Designations
The following table shows the equivalent materials to UNS C10800 oxygen free low phosphorus copper.
|
ASTM B111 |
ASTM B359 |
ASTM B543 |
ASTM B716 |
|
ASTM B133 |
ASTM B360 |
ASTM B638 |
ASTM B743 |
|
ASTM B152 |
ASTM B379 |
ASTM B640 |
ASTM B75 |
|
ASTM B224 |
ASTM B395 |
ASTM B641 |
ASTM B88 |
|
ASTM B280 |
ASTM B42 |
ASTM B68 |
MIL B-20292 |
|
ASTM B302 |
ASTM B432 |
ASTM B687 |
MIL T-24107 |
|
ASTM B306 |
ASTM B447 |
ASTM B698 |
UNS C10800 |
Fabrication and Heat Treatment
Annealing
The annealing temperature for UNS C10800 is between 371 and 648ºC (700 and 1200 ºF).
Cold Working
The UNS C10800 oxygen free low phosphorus copper has excellent cold working capacity.
Hot Working
The UNS C10800 alloys can be hot formed in an excellent method.
Welding
The following are the welding methods recommended for the UNS C10800 alloys:
-
Soldering – excellent
-
Brazing – excellent
-
Oxyacetylene welding – good
-
Gas shielded arc welding – excellent
-
Coated metal arc welding - not recommended
-
Spot welding - not recommended
-
Seam welding - not recommended
-
Butt welding - good
Forging
The UNS C10800 alloys are forged at temperature between 760 and 871ºC (1400 and 1600°F) at a hot forgeability rate of 65%.
Machinability
The machinability rating of UNSC10800 alloy is 20%.
Applications
The following are the applications of UNS C10800.
-
Electrical and electronic conductors
-
Wave guides
-
Cavity resonators
-
Superconductor matrixes
-
Vacuum tube and solid-state devices
-
Glass-to-metal seals