Copper Alloys C12900 is stocked by 0 North American distributors and produced by 1 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
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Specifications
The following specifications cover Copper Alloys C12900
- ASTM B224
- MIL B-20292
- UNS C12900
Property Results
Chemistry Data : [top]
Antimony
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0.003 max |
Arsenic
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0.12 max |
Bismuth
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0.003 max |
Copper
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Includes Ag |
Lead
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0.004 max |
Nickel
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0.05 max |
Silver
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0.034 min |
Tellurium
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Se included in Te |
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Principal Design Features
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Copper, FRSTP, Fire-Refined Tough Pitch with Ag. Deoxidization gives improved embrittlement resistance during welding.
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Applications
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Used for electromechanical hardware connectors, bus bars, etc., where welding is required.
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Machinability
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The machinability rating of this alloy is 20. (Where Alloy 360 FC Brass is 100).
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Welding
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Soldering is rated as "excellent", brazing is rated as "good", oxyacetylene welding is "not recommended", gas shielded arc welding is rated as "fair", coated metal arc welding is "not recommended", spot welding is "not recommended", seam welding is "not recommended" and butt welding is rated as "good".
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Forging
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The hot forgeability rating of this alloy is unknown. (Forging brass = 100). The recommended hot working temperature for this alloy is between 1400 and 1750 F.
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Hot Working
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This alloy's capacity for being hot formed is rated as "excellent".
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Cold Working
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The capacity for cold working this alloy is rated as "excellent".
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Annealing
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The annealing temperature for this alloy is between 750 and 1200 F.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.321
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Electrical Resistivity (microhm-cm (at 68 Deg F))
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10.6
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Mean Coeff Thermal Expansion
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9.3
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Modulus of Elasticity Tension
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17000
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Mechanical Data : [top]
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MSO currently has no data available for this grade.
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Videos :
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MSO currently has no videos available for this grade.
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