ASTM B139
- Electrical
- Industrial
- Architecture
Typical Uses
Architecture, Bridge Bearing Plates, Electrical Switch Parts, Electromechanical Spring Components, Resistance Wire, Electrical Flexing Contact Blades, Electrical Connectors, Electronic Connectors, Wire Brushes, Electronic and Precision Instrument Parts, Fuse Clips, Fasteners, Lock Washers, Fasteners, Cotter Pins, Industrial Bellows, Textile Machinery, Perforated Sheets, Chemical Hardware, Truss Wire, Springs, Sleeve Bushings, Diaphragms, Clutch Disks, Bourdon Tubes, Beater Bar, Welding Rods, Pressure Responsive Elements
C-51000
Chemical Composition
(%max, unless shown as range or min)
|
Cu |
Fe |
Pb |
P |
Sn |
Zn |
| Min/Max |
Rem |
0.10 |
0.05 |
0.03-0.35 |
4.2-5.8 |
0.30 |
Note: Cu + Sum of Named Elements, 99.5% min.
Applicable Specifications
*ASTM B139
Fabrication Processes
* Blanking
* Drawing
* Forming and Bending
* Heading and Upsetting
* Roll Threading and Knurling
* Stamping
Fabrication Properties
| Joining Technique |
Suitability |
| Soldering |
Excellent |
| Brazing |
Excellent |
| Oxyacetylene Welding |
Fair |
| Gas Shielded Arc Welding |
Good |
| Coated Metal Arc Welding |
Fair |
| Spot Weld |
Good |
| Seam Weld |
Fair |
| Butt Weld |
Excellent |
| Capacity for Being Cold Worked |
Excellent |
| Capacity for Being Hot Formed |
Poor |
| Machinability Rating |
20 |
Standard Temper Designation:
* H04 – Hard
Mechanical Properties
Diameter or Distance Between
Parallel Surfaces, in. [mm.] |
Tensile Strength, minA |
Elongation,
min, % |
|
ksi |
MPa |
|
| 1/4 [6] to 1/2 [12] incl. |
70 |
485 |
13 |
| over 1/2 [12] to 1 [25] incl. |
60 |
415 |
15 |
| over 1 [25] |
55 |
380 |
18 |
Physical Properties
|
US Customary |
Metric |
| Melting Point – Liquidus |
1920 F |
1049 C |
| Melting Point – Solidus |
1750 F |
954 C |
| Density |
0.32 lb/in3 at 68 F |
8.86 gm/cm3 at 20 C |
| Specific Gravity |
8.86 |
8.86 |
| Electrical Resistivity |
69.1 ohms-cmil/ft at 68 F |
11.49 microhm-cm at 20 C |
| Electrical Conductivity* |
15 %IACS at 68 F |
0.088 MegaSiemens/cm at 20 C |
| Thermal Conductivity |
40.0 Btu · ft/(hr · ft2·°F) at 68 F |
69.2 W/m ·°K at 20 C |
| Coefficient of Thermal Expansion |
9.9·10-6 per °F (68-572 F) |
17.8·10-6 per °C (20-300 C) |
| Specific Heat Capacity |
0.09 Btu/lb/°F at 68 F |
377.1 J/kg · °K at 20 C |
| Modulus of Elasticity in Tension |
16000 ksi |
110000 MPa |
| Modulus of Rigidity |
6000 ksi |
41370 MPa |
* Determined on an alloy containing 5% tin and .2% phosphorus. This value will vary with the composition
HE
EN
FR
