C17500 Beryllium Cobalt Copper Plate
• Full international standard compliance: ASTM B169, ASTM B171, ASME SB171, EN 1652 certified
• Extra-thick plate capability: Thickness from 5mm up to 200mm for heavy-duty structural applications
• Flexible dimensions: Width 100mm–1200mm, Length 1000mm–3000mm, with custom precision cut-to-size service
• Advanced processing services: CNC sawing, waterjet cutting, surface grinding, and custom machining available
• Fast global delivery: Express worldwide shipping with secure export packaging and full documentation
• Superior marine corrosion resistance: Ideal for seawater, offshore, chemical, and pump/valve applications
• High strength & wear resistance: Tensile strength up to 600–800 MPa, excellent for bearings and bushings
Description
C17500 Beryllium Cobalt Copper Plate for Welding, Molding & High-Conductivity Applications
C17500 Beryllium Cobalt Copper Plate is a precipitation hardening RWMA Class 3 copper alloy that contains 0.4-0.7 percent beryllium and 2.4-2.7 percent cobalt. It blends a steady mechanical strength and a high electrical conductivity up to 60% IACS. Founded in 1997, Dongguan Jiaye Dingsheng have more than 25 years experience in copper alloy manufacture. All plates are made in-house by vacuum melting, precision rolling and standardised heat treatment. Each batch is tested for OES composition and checked for hardness. Our goods are ISO 9001, RoHS and REACH compliant and each shipment is accompanied with thorough mill test certifications.
What Makes C17500 Different from Normal Copper Alloys
Common copper alloys have excellent conductivity but are prone to softening at high temperatures, whereas high strength copper alloys are susceptible to loss of conductive performance. C17500 Beryllium Cobalt Copper Plate closes this gap in performance.
By ageing treatment, cobalt elements generate stable cobalt-beryllide precipitates, which lock grain structures to prevent thermal softening under cyclic heating conditions. It is able to hold its hardness consistently during resistance welding under high pressure and also dissipates heat quicker than tool steel, which makes it a good choice for industrial moulding and welding applications.
C17500 Beryllium Cobalt Copper Plate — Full Specifications
| Parameter | Value |
|---|---|
| UNS Designation | C17500 |
| Classification | RWMA Class 3 |
| Beryllium (Be) Content | 0.4 – 0.7% |
| Cobalt (Co) Content | 2.4 – 2.7% |
| Copper (Cu) | Balance |
| Electrical Conductivity | 45 – 60% IACS |
| Tensile Strength | ≥ 620 – 780 MPa |
| Yield Strength | ≥ 310 – 450 MPa |
| Hardness | HRB 95 – 100 / HB 170 – 230 |
| Temper | Solution Annealed (A), Precipitation Hardened (AT) |
| Standard Thickness | 5 mm – 200 mm |
| Width | 100 mm – 1,200 mm |
| Length | 1,000 mm – 3,000 mm |
| Applicable Standards | ASTM B196, RWMA Class 3 |
| Heat Treatment | Aging at 450 – 480°C |
Key Performance Characteristics
High, Stable Conductivity: Conductivity of 45-60% IACS is substantially greater than typical C17200 alloy, reducing mould cooling time by 20-50% and enhancing total production efficiency.
High temperature hardness stability: Internal precipitate structure is stable at below 300°C, no softening of welding accessory with long-term high current operation.
Thermal cycle stability: High resistance to creep and dimensional deformation when exposed to repeated heat and mechanical stress, ideal for long-cycle industrial processing equipment components.
Three Primary Application Areas
Plastic Injection Moulding . For mould inserts core pins and hollow pieces. The stable hardness resists the resin wear, and the high conductivity speeds the heat dissipation to decrease the product warpage.
Resistance Welding Equipment: Standard RWMA Class 3 material for welding electrode holders, seam wheels and welding dies for cyclic pressure and current operation.
Power Electronics: Suitable for petrochemical industry switchgear parts, subsea connections, and explosion-proof equipment, fulfilling basic safety and conductive performance standards.
Welding and Machining Guidance
Machining in the annealed stage is suggested for effective processing and accurate tolerances. Carbide tools and professional cooling fluids are required for hardened plates. EBW and regulated TIG welding may be used to lessen the effect of the heat affected zone. Solid plates are safe for day-to-day handling, but grinding and welding need HEPA dust filtering and protective equipment to prevent inhaling metal particles.
Quality Control Process
All final plates are tested by three-stage examination. Raw materials are analysed via OES spectrum analysis. Production temperature and pressure are observed in real-time. Finished items are calibrated for composition, hardness mapped, conductivity tested, inspected for dimensions and checked for ultrasonic flaws. All shipments include verifiable test certifications with comprehensive performance data.
Certificate
Custom Dimensions and Technical Support
We support custom size cutting, surface grinding and CNC finishing. Our metallurgical team provides free alloy selection guidance between C17500, C17510 and C17200. Quotations are issued within 24 hours, and in-stock goods ship in 3–5 working days.
Frequently Asked Questions
Q1: What is the difference between C17500 and C17510?
A1: C17500 takes cobalt as the main additive, while C17510 uses nickel. C17500 fits resistance welding scenarios better for stable electrical cycle performance.
Q2: Can hardened C17500 plates be machined?
A2: Yes, carbide tools and cooling liquid are required. Annealed machining before aging treatment delivers higher precision.
Q3: How does the alloy shorten mold cycle time?
A3: Its high conductivity speeds up mold heat dissipation, reducing cooling time by 20–50% and lifting production output.
Q4: What is the standard heat treatment for C17500?
A4: Aging treatment at 450–480°C to balance hardness and conductive performance.
Q5: Are shipping documents available?
A5: Each order is matched with complete MTC certificates and compliance documents for full batch traceability.
Contact Us
Send your product specifications and project inquiries for C17500 Beryllium Cobalt Copper Plate to js01@jstongcai.com.cn, and we will provide professional replies and formal quotations within 24 hours.
