RWMA Class 2, DIN 2.1291, CW105C C18200 High Conductivity Chromium Copper Rod For
RWMA Class2 high conductivity chromium copper alloy Casting Forging Rod Plate for Spot welding
Product Normal Description:
| Product Name | Chromium Copper Rods |
| Grade: | C18200, C Cr1 |
| Standard: | RWMA Class 2, DIN 2.1291, CW105C to EN, CuCr. |
| Product Specification: | we could provide beryllium copper alloy according customers' requirement. |
| Delivery Time: | Usually within 10~15 days |
| Package: | Packed in woodencases |
| Product Brand: | CUBERYLLIUM® |
CuCr1 – UNS.C18200 Chromium Copper is a heat treatable copper alloy offering good electrical conductivity, resistance to softening at elevated temperatures and good strength and hardness. This combination of properties makes C18200 one of the preferred resistance welding electrode materials for a variety of applications. Nominally composed of 99.1% copper and 0.9% chromium, this heat treatable alloy can be brought to its softest condition by annealing it at 1000°C (1850°F) for one-half hour at temperature, then rapidly quenching it in water. In this annealed condition, the alloy is ductile and easily formed, and has an electrical conductivity of about 40% IACS.
RWMA Class 2 materials are stronger than Class 1 material, have slightly lower connductivity.
Chemical Composition of CuCr1-UNS.C18200 Chromium Copper Alloys:
Product Grade: CUBERYLLIUM ®-182 (UNS.C18200)
Cr: 0.60-1.20%
Cu: Balance
Note: Copper plus additions equal 99.50% minimum.
Typical Physical Properties of CuCr1-UNS.C18200 Chromium Copper Alloys:
| | Metric Units | Imperial Units |
| Density | 8.89 gm/cm³ @ 20°C | 0.321 lb/in³ @ 68°F |
| Specific Gravity | 8.89 | 8.89 |
| Melting Point (Liquidus) | 1075°C | 1967°F |
| Melting Point (Solidus) | 1070°C | 1958°F |
| Coefficient of Thermal Expansion | 17.6 x 10 -6 / °C (20-100°C) | 9.8 x 10-6 (77-212°F) |
| Themal Conductivity | 323.6 W/m. °K @ 20°C | 187.0 BTU/ft²/ft/hr/°F @ 68°F |
| Electrical Conductivity | 0.468 MegaSiemens/cm @ 20°C | 80% IACS@ 68°F |
| Modulus of Elasticity (tension) | 117,000 MPa | 17,000ksi |
Note:
1: the units are based upon US Customary.
2: the typical physical properties apply to age hardened products.
Mechanical Performance of CuCr1-UNS.C18200 Chromium Copper Alloys:
| Description | Articles | Temper | Specification (mm) | Tensile Strength (Mpa) | Elongation (%) | Hardness |
| Chromium Copper | C18200 | TH04 | 4-20 | >380 | >10 | 75-80 |
| 20-40 | >475 | >10 | 72-80 |
| 40-60 | >450 | >8 | 65-75 |
The detailed mechanical properties will be available on request from customers.
Most Commonly Temper Used:
Chromium copper rods/ bars/tubes: AT(TF00), HT(TH04)
Chromiium copper plates: AT(TF00), HT(TH04)
Typical Uses For CuCr1-UNS.C18200 Chromium Copper Alloys:
Consumer:Rod Extensions, Pencil-type, Light Soldering Guns, Tips
Industrial:Resistance Welding Machine Electrodes, Resistance Welding Equipment, Plastic Mold Components, Flash Welding Electrodes, Electrode Holder Jaws, Seam Welding Wheels, Wear Plates on Heavy Equipment, Heat Sinks, Spot Welding Tips, Molds
Electrical Industry:Cable, Connector, Thermal Conductors, Switch Gears, Electrical Connector, Circuit Breaker Parts, Switch Contacts, Electric Motor and Generator Components, Parts for electronic Devices
Product Photos:
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DIN 2.1291 CW105C C18200 Chromium Copper Rod For Spot Welding Images
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