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C18200 Chromium Copper (CDA 182)

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C18200 Chromium Copper (CDA 182)

RWMA Class II

Used in resistance welding machine electrodes, seam welding wheels, electrical switch gear, electrode holder jaws, cable connectors, current carrying arms and shafts, circuit breaker parts, arcing and bridging parts, grid side rods in electron tubes, molds, spot welding tips, flash welding electrodes, electrical and thermal conductors requiring greater strength than copper, switch contacts.

Typical Uses for C18200 Chromium Copper:

CONSUMER: Pencil-type & Light Soldering Guns: Tips, Rod Extensions

ELECTRICAL: Switch Contacts, Electric Motor and Generator Components, Contacts, Wire, High Temperature, Semi Conductor Bases, Parts for Electronic Devices, Cable, Connectors, Thermal Conductors Requiring Greater Strength than Copper, Switch Gears, Electrical Connectors, Electrical Conductors Requiring Greater Strength than Copper, Arcing and Bridging Parts, Circuit Breaker Parts, Electron Tube Grid Side Rods

INDUSTRIAL: Seam Welding Wheels, Electrode Holder Jaws, Flash Welding Electrodes, Plastic Mold Components, Resistance Welding Machine Electrodes, Flash Welding Electrodes, Current Carrying Shafts and Arms, Wear Plates on Heavy Equipment, Heat Sinks, Structural Parts, Spot Welding Tips, Molds

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Cr Cu Fe Pb Si
Min/Max 0.6 - 1.2 Rem 0.1 0.05 0.1
Nominals 0.9000 99.1000 - - -
Product Type Temper Type
Bar MILITARY MIL-C-19311
Forgins MILITARY MIL-C-19311
Rod MILITARY MIL-C-19311
Strip MILITARY MIL-C-19311
Wire, Soft ASTM F9
RWMA CLASS
(Alloy Number)
Chemical Composition Hardness Conductivity(%) Tensile Strength
Class 2 (18200) CR.60-1.2 B70-83 80-85 50-70 ksi
Class 2 (18150) Cr.50-1.5 / ZR.05-.25 B70-83 80-85 50-70 ksi
Joining Technique Suitability
Brazing Good
Butt Weld Fair
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Good
Coated Metal Arc Welding Not Recommended
Forgeability Rating 80
Gas Sheilded Arc Welding Good
Machinability rating 20
Oxyacetylene Welding Not Recommended
Seam Weld Not Recommended
Soldering Good
Spot Weld Not Recommended
End Product Specification
Bar MILITARY MIL-C-19311
Forgins MILITARY MIL-C-19311
Rod MILITARY MIL-C-19311
Strip MILITARY MIL-C-19311
Wire, Soft ASTM F9