Overview: C18000 RWMA Class3 copper rod is a high-strength alloy with excellent overall performance. Its mechanical and electrical properties are similar to those of C17510 low-beryllium copper, but it offers better machinability—it can be manufactured without special processes. This material exhibits stability under high stress conditions and is suitable for critical components such as studs, welding electrodes, mold cavities, and electrical components. Even after frequent impacts and long-term use, it maintains its dimensional and shape integrity.
Application:
1. Resistance Welding and Stud Welding: The core of this field is the use of high current and high pressure for metal joining. C18000, due to its excellent conductivity, high strength, and resistance to high-temperature softening, has become a key component material.
2. Plastic Injection Molding: The core of this field is the injection molding of plastic parts. C18000, due to its high thermal conductivity, wear resistance, and good machinability, is used as a key functional component in molds to improve heat dissipation, enhance wear resistance, or ensure dimensional stability.
3. Die Casting: The core of this field is the high-pressure injection of molten metal into a mold. This is one of the most demanding fields in terms of material requirements, demanding extremely high thermal shock resistance, high-temperature strength, and wear resistance.
Alloy Advantages: The material we provide is CuNi2SiCr/C18000, mainly composed of copper, nickel (1%-3%), silicon (0.4%-0.8%), and chromium (0.1%-0.8%), with a tensile strength of at least 620 MPa, a yield strength of at least 480 MPa, and a hardness of at least HRB 90. This material has the following advantages:
- Excellent overall mechanical properties: It remains stable under high stress and high loads, resisting deformation or damage.
- Excellent processing and operational stability: Suitable for components with relative movement (such as mold ejector pins and blow molding pins), it can withstand continuous wear, extending service life.
- Superior environmental adaptability: It exhibits good resistance to various working environments.
- Cost-effective alternative: In most applications, it serves as an ideal replacement for expensive low-beryllium copper (such as C17510), achieving similar performance while effectively reducing costs.
Manufacturing Process:
1. Melting and Casting: Obtaining ingots with uniform and pure composition is the foundation for subsequent processing.
2. Hot Working (Hot Extrusion/Forging): Breaking up the as-cast structure and densifying it prepares for subsequent deformation and heat treatment.
3. Cold Working: Further refining the grain size significantly improves the material’s strength and hardness.
4. Solution Treatment: Allowing alloying elements to dissolve uniformly into the copper matrix, creating conditions for age hardening.
5. Age Hardening Heat Treatment: The core strengthening step, precipitating strengthening phases to achieve the optimal balance of high strength, high hardness, and high electrical conductivity.
6. Finishing and Cutting: Obtaining finished bars that can be directly machined.
Our professional services and support: In addition to providing high-quality C1800 copper rod materials, we are committed to becoming your deep partner, providing comprehensive services throughout the entire product lifecycle to ensure your seamless integration and success from material selection to application.
