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Detailed Properties and Specifications for Alloy 280
Source: Copper Development Association
Composition
| Cu 59.0-63.0 |
Pb 0.30max |
Fe 0.07max |
Zn Rem |
Fabrication Properties
| Property |
|
Rating |
| Capacity for being cold worked |
|
Fair |
| Capacity for being hot formed |
|
Excellent |
| Hot forge-ability rating (Forging brass=100) |
|
90 |
| Hot working temperature |
|
1150-1450F |
| Annealing temperature |
|
800-1100F |
| Machine-ability rating (Free cutting brass=100) |
|
49 |
| Soldering |
|
Excellent |
| Brazing |
|
Excellent |
| Oxyacetylene welding |
|
Good |
| Gas shielding arc welding |
|
Fair |
| Coated metal arc welding |
|
Not Recommended |
| Resistance welding (Spot) |
|
Good |
| Resistance welding (Seam) |
|
Not Recommended |
| Resistance welding (Butt) |
|
Good |
Specific Properties based on ASTM B36
| Diameter |
Temper |
Tensile Strength |
Elongation |
Yield Strength |
Rockwell Hardness |
|
0.020" to 0.036" |
Half-Hard |
58min-70max |
|
|
50-75 |
| Over 0.036" |
Half-Hard |
58min-70max |
|
|
52-80 |
Other Alloys:
110,
220,
260,
280,
330,
360,
464,
510,
614,
706,
715,
932,
936,
& 954
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