Cuco2be Plate
Grade Equivalents: UNS C18150 / CuCr1Zr / DIN 2.1293 / EN CW106C / RWMA Class 2
Application Focus: Resistance Welding Platens, Electrode Holders, Projection Welding Dies, & Seam Welder Bushings
Executive Standards: RWMA Class 2 / AWS J1.3, ASTM B152, ISO 5182
Size Range: Thickness 10 mm – 150 mm, Custom Width and Length Cut-to-Size Available
Temper Condition: Solution Heat-Treated & Age-Hardened (TF00 / HT) for Optimal Hardness and Conductivity
Core Purpose: Ultra-High Electrical/Thermal Conductivity Combined with Structural Stability for Heavy-Duty Welding
Quality Assurance: ISO 9001:2015, RoHS Compliant, EN 10204 3.1 Mill Test Certificate
Description
CuCo2Be Plate for Resistance Welding & High-Thermal Applications | C17500 Cobalt Beryllium Copper Solutions
CuCo2Be Plate (C17500 / DIN 2.1285) is a precipitation hardened cobalt beryllium copper alloy plate, which is appropriate for working conditions where a balance of thermal conductivity, mechanical strength and steady service performance is needed. The material contains 0.4-0.7% beryllium and 2.4-2.7% cobalt and exhibits 45-60% IACS electrical conductivity and 200-250 W/m·K thermal conductivity, greater than typical C17200 beryllium copper.
Dongguan Jiaye Dingsheng Precision Casting & Forging Co., Ltd. was founded in 1997 and uses integrated vacuum melting and full-process inspection manufacturing. All goods are manufactured to ISO 9001 standards and supplied with EN 10204 3.1 mill test certifications.
What Is CuCo2Be Plate?
CuCo2Be Plate is according to ASTM C17500 and European DIN 2.1285 specifications of the cobalt beryllium copper alloy family. Compared to C17200, it substitutes certain beryllium components with cobalt, significantly improving the overall conductive performance. Solution annealing and ageing hardening process improves mechanical characteristics of the material.
The formation of cobalt-beryllium precipitates in the copper matrix restricts grain movement and ensures the structural integrity of components of industrial equipment during repeated heat cycles.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Grade / Standard | C17500 / DIN 2.1285 / RWMA Class 3 / ASTM B534 |
| Beryllium Content | 0.4 – 0.7% |
| Cobalt Content | 2.4 – 2.7% |
| Electrical Conductivity | 45 – 60% IACS |
| Thermal Conductivity | 200 – 250 W/m·K |
| Tensile Strength | 550 – 850 MPa |
| Hardness (Age-Hardened) | 90 – 100 HRB / 20 – 30 HRC |
| Max. Operating Temperature | Up to 450 – 500°C |
| Temper Condition | TH04 (Solution Treated + Age Hardened) |
| Compliance | RoHS, REACH, ISO 9001 |
| Quality Documentation | EN 10204 3.1 Mill Test Certificate |
Material Composition & Alloy Characteristics
It contains 2.4–2.7% cobalt and so differs from the standard beryllium copper alloys. Cobalt promotes internal grain refinement and precipitation hardening for a more homogeneous microstructure than C17200. This construction guaranties consistent machining performance and uniform dimensional tolerance for mass production. The alloy has also a steady corrosion resistance and anti-galling qualities, adjusting to repetitive mechanical friction of mould inserts and contact parts. It has steady hardness in the region of 450–500 °C. If used for a long time beyond this range, its performance will gradually decrease.
Performance Advantages
The CuCo2Be Plate balances conductivity and structural strength, which reduces resistance heat production and energy consumption during continuous welding and electrical operation. Its thermal conductivity may speed up the dissipation of heat in the working regions, therefore minimising the cooling cycle of moulding and the distortion of products in the production of injection moulding. The special alloy structure prevents hydrogen induced cracking and is suitable for industrial applications including humid and hydrogen-rich conditions. The plate has a steady tensile strength and hardness and resists deformation under long-term clamping strain. Carbide tools are suggested for precise cutting.
Application Scenarios
It is extensively utilised as resistance welding electrodes, welding wheels and electrode holders for stainless steel and high resistance alloy welding. It is processed into mould core inserts and cavity elements of injection moulding equipment to boost manufacturing efficiency. It is also used for high-current switch contacts, connector springs and busbar components, ensuring robust electrical transmission under long-term mechanical strain.
Quality Control Process
All plates undergo rigorous multi-stage inspection before being sent. OES spectrum analysis validates beryllium and cobalt component concentration, hardness and tensile testing verifies heat treatment, eddy current equipment proves conductivity compliance. Ultrasonic examination and grain size analysis guaranty the free of internal fault and uneven microstructure. All shipments are accompanied with comprehensive test reports and full batch traceability records.
Custom Dimensions & Supply Options
We support customized thickness, width and length with cut-to-size processing to reduce customer machining costs. In-stock products are delivered within 3–5 days, and all inquiries will receive formal quotations within 24 hours. We provide complete international logistics and customs document services for global clients.
Frequently Asked Questions
Q1: What is the difference between CuCo2Be Plate and C17200?
A1: C17200 is harder. C17500 CuCo2Be has greater electrical and thermal conductivity and is used when heat dissipation and conduction are required.
Q2: Is it possible to manufacture the toughened plate as is?
A2: Yes, TH04 aged condition enables direct machining. Carbide tooling is ideal for dimensional precision and surface finish.
Q3: Does the alloy resist hydrogen embrittlement?
A3: It has good hydrogen fracture resistance, better adaptability than most high-strength copper alloys in humid working condition.
Q4: What is the working temperature range?
A4: The mechanical characteristics of the material are preserved in the temperature range of 450–500°C. Excessively high temperature leads to over-aging and softening.
Q5: Is this product compliant with international environmental standards?
A5: All plates are RoHS and REACH compliant with complete compliance paperwork supplied with each batch.
Contact Us
If you have size customization and procurement demands for CuCo2Be Plate, please send your detailed technical requirements to js01@jstongcai.com.cn. Our team will provide a detailed and professional quotation within 24 hours.
