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C68800
| Elements | ||||||
|---|---|---|---|---|---|---|
| Cu(1,2) | Pb | Zn(3) | Fe | Al(4) | Co | |
|
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) Al + Zn 25.1 - 27.1%. (4) Al + Zn 25.1 - 27.1%. |
||||||
| Min (%) | 21.3 | 3.0 | 0.25 | |||
| Max (%) | Rem | 0.05 | 24.1 | 0.20 | 3.8 | 0.55 |
| Form | Temper | Temper Code | Tensile Strength (ksi) |
YS-0.2% Offset (ksi) |
YS-0.5% Ext (ksi) |
Elongation (%) |
Rockwell B scale | Rockwell 30T scale | Fatigue Strength** (ksi) |
Section Size (in) |
|---|---|---|---|---|---|---|---|---|---|---|
| * Measured at room temperature, 68°F (20°C). ** Fatigue Strength: 100 x 106 cycles, unless indicated as [N] x 106. | ||||||||||
| Flat Products | 1/2 Hard | H02 |
93 Typ |
75 Typ |
20 Typ |
90 Typ |
78 Typ |
0.04 | ||
| Extra Hard | H06 |
117 Typ |
105 Typ |
3 Typ |
97 Typ |
83 Typ |
0.04 | |||
| Extra Spring | H10 |
129 Typ |
114 Typ |
2 Typ |
99 Typ |
83 Typ |
0.04 | |||
| Hard | H04 |
109 Typ |
97 Typ |
6 Typ |
96 Typ |
82 Typ |
0.04 | |||
| Nominal Grain Size 0.015 mm | OS015 |
82 Typ |
55 Typ |
54 Typ |
36 Typ |
81 Typ |
71 Typ |
0.04 | ||
| Spring | H08 |
122 Typ |
110 Typ |
2 Typ |
98 Typ |
83 Typ |
37 Typ | 0.04 | ||
| Melting Point - Liquidus°F | 1765 |
|---|---|
| Melting Point - Solidus°F | 1740 |
| Densitylb/cu in. at 68°F | 0.296 |
| Specific Gravity | 8.2 |
| Electrical Conductivity% IACS at 68°F | 18 |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 23 |
| Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) | 10.1 |
| Specific Heat CapacityBtu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tensionksi | 16800 |
| Technique | Suitability |
|---|---|
| Soldering | Fair |
| Brazing | Fair |
| Spot Weld | Good |
| Seam Weld | Good |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Excellent |
Common Fabrication Processes
- Blanking
- Drawing
- Forming and Bending
- Shearing and Stamping
| Treatment | Minimum* | Maximum* | ||
|---|---|---|---|---|
| * Temperature is measured in Fahrenheit. | ||||
| Annealing | 750 | 1100 | ||
| Product Category | Product | Reason Category | Reason |
|---|---|---|---|
| Electrical | Connectors | Conductivity (Electrical) | Electrical Conductivity |
| Connectors | Conductivity (Thermal) | Thermal Conductivity | |
| Connectors | Corrosion Resistance | Corrosion Resistance | |
| Connectors | Forming Characteristics | Formability | |
| Connectors | Mechanical Properties | High Strength | |
| Contacts | Conductivity (Electrical) | Electrical Conductivity | |
| Contacts | Conductivity (Thermal) | Thermal Conductivity | |
| Contacts | Forming Characteristics | Formability | |
| Contacts | Mechanical Properties | High Strength | |
| Electrical Connectors | Conductivity (Electrical) | Electrical Conductivity | |
| Electrical Connectors | Forming Characteristics | Formability | |
| Electrical Connectors | Mechanical Properties | High Strength | |
| Electronic Connectors | Conductivity (Electrical) | Electrical Conductivity | |
| Electronic Connectors | Forming Characteristics | Formability | |
| Electronic Connectors | Mechanical Properties | High Strength | |
| Plug Receptacles | Conductivity (Electrical) | Electrical Conductivity | |
| Plug Receptacles | Conductivity (Thermal) | Thermal Conductivity | |
| Plug Receptacles | Corrosion Resistance | Corrosion Resistance | |
| Plug Receptacles | Forming Characteristics | Formability | |
| Plug Receptacles | Mechanical Properties | High Strength | |
| Relays | Conductivity (Electrical) | Electrical Conductivity | |
| Relays | Forming Characteristics | Formability | |
| Relays | Mechanical Properties | High Strength | |
| Springs | Conductivity (Electrical) | Electrical Conductivity | |
| Springs | Conductivity (Thermal) | Thermal Conductivity | |
| Springs | Corrosion Resistance | Corrosion Resistance | |
| Springs | Forming Characteristics | Formability | |
| Springs | Mechanical Properties | Ductility | |
| Springs | Mechanical Properties | High Strength | |
| Switches | Conductivity (Electrical) | Electrical Conductivity | |
| Switches | Conductivity (Thermal) | Thermal Conductivity | |
| Switches | Corrosion Resistance | Corrosion Resistance | |
| Switches | Forming Characteristics | Formability | |
| Switches | Mechanical Properties | High Strength | |
| Terminals | Conductivity (Electrical) | Electrical Conductivity | |
| Terminals | Conductivity (Thermal) | Thermal Conductivity | |
| Terminals | Corrosion Resistance | Corrosion Resistance | |
| Terminals | Forming Characteristics | Formability | |
| Terminals | Mechanical Properties | High Strength | |
| Industrial | Drawn Parts | Forming Characteristics | Formability |
| Drawn Parts | Mechanical Properties | Ductility | |
| Drawn Parts | Mechanical Properties | High Strength |
| Form | Specific Sub-Form | Application | System | Standard | Description |
|---|---|---|---|---|---|
| Bar | Rolled | ASTM | B592 | COPPER-ZINC-ALUMINUM-COBALT ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR | |
| Plate | ASTM | B592 | COPPER-ZINC-ALUMINUM-COBALT ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR | ||
| Sheet | ASTM | B592 | COPPER-ZINC-ALUMINUM-COBALT ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR | ||
| Strip | ASTM | B888/B88M | COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS | ||
| ASTM | B592 | COPPER-ZINC-ALUMINUM-COBALT ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR |
Corrosion Properties
No Corrosion Properties Available.