ASTM B139
- Electrical
- Industrial
- Machinery
Typical Uses
Electrical resistance wire, fuse clips, electromechanical spring components, electrical flexing contact blades, electrical connectors, electronic connectors, wire brushes, switch parts, electronic and precision instrument parts, Industrial bourdon tubes, bellows, perforated sheets, chemical hardware, truss wire, springs, sleeve bushings, diaphragms, clutch disks, pressure responsive elements, beater bar,textile machinery, welding rods, Fasteners fasteners, cotter pins, lock washers, Architecture bridge bearing plates
C-52100
Chemical Composition
(%max, unless shown as range or min)
| Cu | Fe | Pb | P | Sn | Zn |
| Min/Max | Rem | 0.1 | 3.5-4.5 | 0.01-0.5 | 3.5-4.5 | 1.5-4.5 |
Note: Cu + Sum of Named Elements, 99.5% min.
Applicable Specifications
* ASTM B139
* SAE J463, SAE J461
Fabrication Processes
* Blanking, Drawing, Forming and Bending, Machining, Shearing, Stamping
Products
* Rod
Fabrication Properties
| Joining Technique | Suitability |
| Soldering | Excellent |
| Brazing | Good |
| Oxyacetylene Welding | Not Recommended |
| Gas Shielded Arc Welding | Not Recommended |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Not Recommended |
| Seam Weld | Not Recommended |
| Butt Weld | Fair |
| Capacity for Being Cold Worked | Good |
| Machinability Rating | 80 |
Standard Temper Designation:
* H04 – Hard
Mechanical Properties (ASTM B139)
Diameter or Distance Between
Parallel Surfaces, in. [mm.] | Tensile Strength, minA | Elongation,
min, % |
| ksi | MPa |
| 1/16 [1.6] to 1/4 [6] incl. | 65 | 450 | 8 |
| over 1/4 [6] to 1/2 [12] incl. | 60 | 415 | 10 |
| over 1/2 [12] to 1 [25] incl. | 55 | 380 | 12 |
| over 1 [25] | 50 | 345 | 15 |
Physical Properties
| US Customary | Metric |
| Melting Point – Liquidus | 1830 F | 1000 C |
| Melting Point – Solidus | 1700 F | 930 C |
| Density | 0.321 lb/in3 at 68 F | 8.89 gm/cm3 at 20 C |
| Specific Gravity | 8.89 | 8.89 |
| Electrical Resistivity | 54.6 ohms-cmil/ft at 68 F | 9.07 microhm-cm at 20 C |
| Electrical Conductivity | 19 %IACS at 68 F | 0.111 MegaSiemens/cm at 20 C |
| Thermal Conductivity | 50.0 Btu · ft/(hr · ft2·°F) at 68 F | 87 W/m ·°K at 20 C |
| Coefficient of Thermal Expansion | 9.6·10-6 per °F (68-572 F) | 17.3·10-6 per °C (20-300 C) |
| Specific Heat Capacity | 0.09 Btu/lb/°F at 68 F | 380 J/kg · °K at 20 C |
| Modulus of Elasticity in Tension | 15000 ksi | 103000 MPa |
| Modulus of Rigidity | 5600 ksi | 39000 MPa |
HE
EN
FR
