Overview
Copper is the standard metal used for electrical conductors. Copper has extremely high electrical conductivity, surpassed only by pure silver and it has excellent tensile, solderability and corrosion characteristics.
C102 is an oxygen free (OF) copper that has better drawing and resistance to hydrogen embrittlement than C110 (ETP). OF copper contains less dissolved oxygen than ETP, which gives OF its performance advantage. In most applications, ETP is an acceptable conductor material and is more economical than OF copper.
Both OF and ETP copper conductors are available bare or plated with silver, nickel or tin.
Physical Properties
| Annealing Range (Min) | 700 °F |
| Annealing Range (Max) | 1200 °F |
| Density | 0.322 lb/in³ |
| Electrical Resistivity (Annealed) | 10.3 Ω·cir-mil/ft @ 68 °F |
| Electrical Conductivity (Annealed) | 101% IACS @ 68 °F |
| Thermal Conductivity | 226 Btu/ft²/ft·hr/°F @ 68 °F |
| Coefficient of Thermal Expansion | 9.8 per °F (68-572 °F) |
| Modulus of Elasticity (Tension) | 17 ksi |
| Modulus of Rigidity (Tension) | 6 ksi |
| Melting Point (Solidus) | 1,700 °F |
| Melting Point (Liquidus) | 1,900 °F |
| Annealing Range (Min) | 371 °C |
| Annealing Range (Max) | 649 °C |
| Density | 8.94 gm/cm³ |
| Electrical Resistivity (Annealed) | 1.71 µΩ·cm @ 20 °C |
| Electrical Conductivity (Annealed) | 0.59 MS·cm @ 20 °C |
| Thermal Conductivity | 391 W/m·K @ 20 °C |
| Coefficient of Thermal Expansion | 17.6 per °C (20-300 °C) |
| Modulus of Elasticity (Tension) | 117 Mpa |
| Modulus of Rigidity (Tension) | 44 Mpa |
| Melting Point (Solidus) | 927 °C |
| Melting Point (Liquidus) | 1,038 °C |
Round Wire
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (ksi) Typical |
MILL LIMITS (inch) |
| Annealed | OS050 | 35.0 | .0010 - .1285 inch |
| Hard Drawn | H04 | 60.0 |
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (Mpa) Typical |
MILL LIMITS (mm) |
| Annealed | OS050 | 240 | .0254 - 3.264 mm |
| Hard Drawn | H04 | 410 |
Square Wire
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (ksi) Typical |
MILL LIMITS (inch) |
| Annealed | OS050 | 35.0 | .0100 - .0808 inch |
| Hard Drawn | H04 | 60.0 |
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (Mpa) Typical |
MILL LIMITS (mm) |
| Annealed | OS050 | 240 | .2540 - 1.905 mm |
| Hard Drawn | H04 | 410 |
Rolled Flat
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (ksi) |
MILL LIMITS (inch) |
|
| Min | Max | |||
| Annealed | OS050 | 26.0 | 38.0 | Thickness: .0100 - .0500 inch Width: .0150 - .2500 inch |
| 1/4 Hard | H01 | 34.0 | 42.0 | |
| 1/2 Hard | H02 | 37.0 | 46.0 | |
| Hard | H04 | 43.0 | 52.0 | |
| Spring | H08 | 50.0 | 58.0 | |
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (Mpa) |
MILL LIMITS (mm) |
|
| Min | Max | |||
| Annealed | OS050 | 170 | 270 | Thickness: .2540 - 1.905 mm Width: .3810 - 6.350 mm |
| 1/4 Hard | H01 | 230 | 290 | |
| 1/2 Hard | H02 | 250 | 320 | |
| Hard | H04 | 290 | 360 | |
| Spring | H08 | 340 | 400 | |
