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
Product Specifications
| 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 |
Chemical Composition
| Cr | Cu | Fe | Pb | Si | |
| Min/Max | 0.6 - 1.2 | Rem | 0.1 | 0.05 | 0.1 |
| Nominals | 0.9000 | 99.1000 | - | - | - |
Temper
| 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 |
Mechanical Properties
| 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 |
Fabrication
| 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 |
Our Services
Aviva Metals Houston warehouse operation is a AS9120B, and AS9100D in our Ohio foundry, based on ISO 9001:2015. We are now also offering our complete range of brass, bronze and copper alloys in precision machined or milled parts, in full accordance with your drawings. Aviva Metals creates custom precision bearings and bushings, flanges, washers, double flange bearings, full half bearings, spacers and special machined parts that can be shipped on a global basis and in full accordance with most international standards.
