The following data is provided for informational purposes only. It was provided with permission by the Copper Development Association at www.copper.org.
Last Update: Feb 21, 2005
Chemical Composition (%max., unless shown as range or min.)
| Cu(1X2) | O | Ag | |
| Min./Max. | 99.99 min | .0010 | .085 |
| Nominal | – | – | – |
(1) Cu is determined by the difference between the impurity total and 100%.
(2) Cu value includes Ag.
(3) In troy ounce: Min = 25, Max = 0and Nom = 0
Note: This is a high conductivity copper which has, in the annealed condition a minimum conductivity of 100% IACS except for Alloy C10100 which has a minimum conductivity of 101% IACS.
Applicable Specifications
| Product | Specification |
| Bands, Projectile Rotating | MILITARY MIL-B-20292 |
| Bar | ASME SB152 ASTM B152 |
| Bar, Bus | ASTM B187 |
| Brazing Filler Metal | FEDERAL QQ-B-650 |
| Pipe, Bus | ASTM B188 |
| Plate | ASME SB152 ASTM B152 |
| Rod, Bus | ASTM B187 |
| Shapes, Bus | ASTM B187 MILITARY MIL-B-19231 |
| Sheet | ASME SB152 ASTM B152 |
| Sheet, Clad | ASTM B506 |
| Strip | ASME SB152 ASTM B152 |
| Strip, Clad | ASTM B506 |
| Tube, Bus | ASTM B188 |
| Wire, Medium-Hard Drawn | ASTM B2 FEDERAL QQ-W-343 |
| Wire, Coated With Lead Alloy | ASTM B189 |
| Wire, Coated With Nickel | ASTM B355 |
| Wire, Coated With Silver | ASTM B298 |
| Wire, Coated With Tin | ASTM B246 |
| Wire, Flat | ASTM B272 |
| Wire, Hard Drawn | ASTM B1 FEDERAL QQ-W-343 |
| Wire, Soft | ASTM B3 FEDERAL QQ-W-343 |
Common Fabrication Processes
Blanking, Coining, Coppersmithing, Drawing, Etching, Forming and Bending, Heading and Upsetting, Hot Forging and Pressing, Piercing and Punching, Roll Threading and Knurling, Shearing, Spinning, Squeezing and Swaging, Stamping
Fabrication Properties
| Joining Technique | Suitability |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Fair |
| Gas Shielded Arc Welding | Good |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Not Recommended |
| Seam Weld | Not Recommended |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Excellent |
| Forgeability Rating | 65 |
| Machinability Rating | 20 |
Physical Properties
| US Customary | Metric | |
| Melting Point – Liquidus | 1981 F | 1083 C |
| Melting Point – Solidus | 1981 F | 1083 C |
| Density | 0.323 lb/in3 at 68 F | 8.94 gm/cm3 @ 20 C |
| Specific Gravity | 8.94 | 8.94 |
| Electrical Resistivity | 10.3 ohms–cmil/ft @ 68 F | 1.73 microhm–cm @ 20 C |
| Electrical Conductivity* | 101 %IACS @ 68 F | 0.585 MegaSiemens/cm @ 20 C |
| Thermal Conductivity | 224.0 Btu · ft/(hr · ft2·oF)at 68F | 387.7 W/m · oK at 20 C |
| Coefficient of Thermal Expansion | 9.4 ·10–6 per oF (68–212 F) | 16.9 ·10–6 per oC (20–100 C) |
| Coefficient of Thermal Expansion | 9.6 ·10–6 per oF (68–392 F) | 17.3 ·10–6 per oC (20–200 C) |
| Coefficient of Thermal Expansion | 9.8 ·10–6 per oF (68–572 F) | 17.6 ·10–6 per oC (20–300 C) |
| Specific Heat Capacity | 0.092 Btu/lb/oF at 68 F | 393.5 J/kg · oK at 293 K |
| Modulas of Elasticity in Tension | 17000 ksi | 117000 MPa |
| Modulus of Rigidity | 6400 ksi | 44130 MPa |
*Volume and weight basis, minimum value.
Tempers Most Commonly Used
| Flat Products | |
| BAR, DRAWN | H01, H04, H06, O60 |
| BAR, ROLLED | H01, H04, H06, M20, O60 |
| PLATE | H00, M20 |
| SHEET | H00, H02, M20, O60 |
| STRIP, DRAWN | H04, O60 |
| STRIP, ROLLED | H00, H01, H02, H04, H08, H10, M20, O60 |
| WIRE, DRAWN | H04, H06, O60 |
| WIRE, ROLLED | H04, O60 |
| Other | |
| ROD | H04, M20 |
| SHAPES | H04, M20, M30, O60 |
| WIRE | H00, H01, H04, H08, O60 |
Typical Uses
Automotive
Gaskets, Radiators
Electrical
Conductors, Transistor Bases, Commutator Segments, Busbars, Contacts, Windings, Switches, Printed Circuit Foil, Radio Parts, Conductivity Wire, Terminal Connectors
Industrial
Heat Exchangers, Chemical Process Equipment, Printing Rolls, Applications Requiring Brazing in Hydrogen Atmosphere, Clad Metals
