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C19720
| Elements | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cu(1) | Pb | Sn | Zn | Fe | P | Ni(2) | Mg | Mn | |
|
(1) Cu + Sum of Named Elements 99.5% min. (2) Ni value includes Co. |
|||||||||
| Min (%) | 0.05 | 0.05 | 0.06 | ||||||
| Max (%) | Rem | 0.05 | 0.20 | 0.20 | 0.50 | 0.15 | 0.10 | 0.20 | 0.05 |
| Form | Temper | Temper Code | Tensile Strength (ksi) |
YS-0.2% Offset (ksi) |
Elongation (%) |
|---|---|---|---|---|---|
| * Measured at room temperature, 68°F (20°C). | |||||
| Flat Products | 1/2 Hard and Stress Relieved | HR02 |
58 Typ |
48 Typ |
9 Min |
| Hard and Stress Relieved | HR04 |
65 Typ |
60 Typ |
3 Min |
|
| Melting Point - Liquidus°F | 1986 |
|---|---|
| Melting Point - Solidus°F | 1956 |
| Densitylb/cu in. at 68°F | 0.319 |
| Specific Gravity | 8.84 |
| Electrical Conductivity% IACS at 68°F | 80 |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 185 |
| Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) | 9.6 |
| Specific Heat CapacityBtu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tensionksi | 17200 |
| Modulus of Rigidityksi | 6600 |
| Magnetic Permeability | 0.9999 |
| Poisson's Ratio | 0.3 |
| Technique | Suitability |
|---|---|
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Excellent |
Common Fabrication Processes
No fabrication process properties for this alloy
| Treatment | Minimum* | Maximum* | ||
|---|---|---|---|---|
| * Temperature is measured in Fahrenheit. | ||||
| Annealing | 660 | 1020 | ||
| Hot Working Temperature | 1400 | 1700 | ||
| Product Category | Product | Reason Category | Reason |
|---|---|---|---|
| Electrical | Springs, electrical | Appearance | Color |
| Springs, electrical | Corrosion Resistance | Corrosion Resistance | |
| Springs, electrical | Corrosion Resistance | Corrosion Resistance to Fresh Water | |
| Springs, electrical | Corrosion Resistance | Corrosion Resistance to Salt Water | |
| Springs, electrical | Forming Characteristics | Formability | |
| Springs, electrical | Mechanical Properties | Moderate Strength | |
| Terminals, electrical | Appearance | Appearance | |
| Terminals, electrical | Corrosion Resistance | Corrosion Resistance | |
| Terminals, electrical | Forming Characteristics | Formability | |
| Terminals, electrical | Mechanical Properties | Moderate Strength |
| Form | Specific Sub-Form | Application | System | Standard | Description |
|---|---|---|---|---|---|
| Strip, Sheet & Plate | ASTM | B465 | COPPER-IRON ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR |
Corrosion Properties
No Corrosion Properties Available.