Weldmax CuCrZr (CW106C / C18150 / 2.1293 / Class II) is a high-performance copper material alloyed with chromium and zirconium, specifically formulated for welding technologies and high-temperature applications. The Weldmax brand is engineered to deliver maximum performance from the CuCrZr alloy within RWMA Class II standards.
This high-conductivity alloy provides excellent hardness, wear resistance, and thermal stability, ensuring long service life under demanding manufacturing conditions such as resistance welding electrodes and injection mold components.
Technical Advantages:
- High electrical conductivity (75–85% IACS)
- Increased hardness and strength after heat treatment
- High resistance to thermal fatigue and deformation
- Long-lasting performance against wear and erosion
- Dimensional stability at elevated temperatures
- Good machinability and weldability
Main Application Areas:
Resistance Welding: Spot and seam welding electrodes, pressure tips
Mold Technologies: Cooling cores in plastic injection molds, hot runner components
Electrical & Automation: High-current carrying contacts and terminals
Defense & Aerospace: Precision components operating under thermal stress
Automotive & White Goods: Welding machine components, heat treatment systems
Quality and Standards:
Weldmax CuCrZr is fully compliant with international standards CW106C (EN), C18150 (UNS), 2.1293 (DIN), and RWMA Class II.
All manufacturing processes are carried out according to strict traceability and quality control principles.
Products are delivered with analysis certificates and full technical documentation.
CHEMICAL COMPOSITION
| Cu | Cr | Zr | Si + Pb |
|---|---|---|---|
| % rem | % 0.3-1.2 | % 0.03-0.3 | % 0.1 max. |
AVALIABLE STANDART
| EN | ASTM | AMS | DIN | RWMA |
|---|---|---|---|---|
| CW106C | C18150 | 2.1293 | CLASS II |
APPLICATIONS
- Resistance Welding Electrodes
- Seam Weldings Wheels
- Continuous Casting Molds (ferrous and non-ferrous metal)
- Rotor Bars and Circuit Rings
- Circuit Breaker Switches
- Electrical Components
- Nuclear Physic Applications
- Contacs in Vacuum Circuit Breakers
- EDM Plate
SUPPLIED FORM
- Rings
- Plates
- Discs
- Tubes
- Round bars
- Square bars
- Rectangular bars
- Hexagon bars
- Custom shapes are available upon request
PHYSICAL PROPERTIES
| Density | Specific Heat | Electrical Conductivity | Electrical Conductivity (I.A.C.S.) | Thermal Conductivity |
|---|---|---|---|---|
| 8.9 g/mm3 | 0.38 J/g.K | min. 46 MS/m | min. 80% | 320 W/m.K |
MECHANICAL PROPERTIES
| MATERIAL CONDITION | Tensile Strenght Rm N/mm² | Yield Strengh Rp 0,2 N/mm² | Elongation (A5) % | Hardness (Brinell) HB30 |
|---|---|---|---|---|
| EXTRUDED | min. 400 | min. 310 | min. 13 | min. 135 |
| FORGED | min. 360 | min. 270 | min. 15 | min. 125 |
1. Resistance Welding Technologies
Spot and seam welding electrodes (RWMA Class II)
Welding rods and tips for automotive welding lines
Welding nozzles, intermediate adapters, and molds
High-frequency welding electrode components
Heat- and deformation-resistant welding components
2. Electrical and Energy Systems
Circuit breaker components
High-voltage busbars and terminal elements
Electrical grounding system components
High arc-resistance connectors and contact systems
3. Automotive Industry
Welding components for automation lines
Chassis welding and panel joining systems
Sensor housings and heat-resistant connectors
4. Aerospace and Defense Industry
Electrical contact parts used in radar and missile systems
In-aircraft power transmission connectors
High-temperature and environmental-resistant contact components
5. Mold and Injection Industry
Heat-conductive cores used in plastic injection molds
Piston heads for high-pressure aluminum die casting
Mold inserts resistant to thermal fatigue
6. Thermal Management and Cooling Systems
Industrial cooling blocks and heat sinks
Thermal load distribution components
Conductive interface parts used in energy conversion systems
