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Alloy 182 Chromium Copper

Sequoia Brass & Copper sells alloy 182 chromium copper. Chromium copper is the primary copper alloy used for resistance spot and seam welding. This alloy achieves good hardness and electrical conductivity through a combination of heat treatment and cold work. C18200 is utilized for electrodes, holders, adaptors, as well as numerous electrical applications where resistance to deformation at high temperature is required or when higher mechanical properties than C11000 are required.


Common fabrication processes for 182 chromium copper are bending, cold working, drawing, forging, hot working, rolling, and swaging. 182 chromium copper comes in the form of bar, plate, sheet, strip, rod, shapes, tube and wire.

  • Chemical Composition
  • Fabrication Properties
  • Casting Characteristics
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  Cu Cr Fe Pb Si
Min/Max Rem .6 - 1.2 0.1 0.05 0.1
Nominal 99.1 0.9
Joining Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Not Recommended
Spot Weld Not Recommended
Seam Weld Not Recommended
Butt Weld Fair
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Good
Forgeability Rating: 80
Machinability Rating: 20
 
Product Forms
Bar
Plate
Sheet
Strip
Rod
Shapes
Tube
Wire
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Common Fabrication Processes For
182 Chromium Copper

Bending, cold working, drawing, extruding, forging, heading, hot working, impacting, rolling, swaging

Typical Uses

Consumer
Pencil-type & light soldering guns: tips, rod extensions
Electrical
Electrical conductors requiring greater strength than copper, electron tube grid side rods, wire, high temperature contacts, switch gears, electric motor and generator components, electrical connectors, connectors, cable, semi conductor bases, parts for electronic devices, switch contacts, arcing and bridging parts, thermal conductors requiring greater strength than copper, circuit breaker parts
Industrial
Wear plates on heavy equipment, heat sinks, current carrying shafts and arms, plastic mold components, structural parts, spot welding tips, flash welding electrodes, molds, flash welding electrodes, electrode holder jaws, resistance welding machine electrodes, seam welding wheels