C17500 Beryllium Cobalt Copper Strip
Grade: UNS C17500 / CuCo2Be / Alloy 10 / CW104C / DIN 2.1285
Standards: ASTM B534, SAE J461, SAE J463, RWMA Class 3
Specification: Thickness 0.10mm - 3.0mm, Width 5mm - 400mm or Custom Precision Slit
1. Factory Direct Supply: Direct manufacturer pricing with strict quality control and batch consistency.
2. High Electrical & Thermal Conductivity: Excellent conductivity (45–60% IACS) for heavy-current electronic components.
3. Ultra-High Precision Slitting: Precision width slitting tolerance up to ±0.05mm for automated stamping lines.
4. Excellent Temperature Resistance: Outstanding thermal stability and softening resistance up to 480°C.
5. Custom Slitting & Export Packaging: Precision slit coils wrapped with moisture-proof protection for export.
Description
C17500 Beryllium Cobalt Copper Strip — High Conductivity Alloy for Precision Electrical & Welding Applications
The precipitation-hardened copper alloy C17500 Beryllium Cobalt Copper Strip (UNS C17500 / CuCo2Be / RWMA Class 3) strikes a compromise between mechanical strength and electrical conductivity. It has 680–880 MPa tensile strength and 45–60% IACS conductivity. It comes in 0.10–3.0 mm thickness and 5–400 mm width with a slitting tolerance of ±0.05 mm. The substance bridges the performance gap between pure copper and high-strength beryllium copper. Dongguan Jiaye Dingsheng Precision Casting & Forging Co., Ltd. was established in 1997 and provides this alloy for use in precision electronics, automotive, aerospace, and resistance welding worldwide.
What Is C17500 Beryllium Cobalt Copper?
ASTM B534, SAE J461, SAE J463, DIN 2.1285, and CW104C standards are all met by the cobalt-containing beryllium copper alloy C17500. It is composed of 2.40–2.70% cobalt, 0.40–0.70% beryllium, and copper. This grade is intended for situations requiring stable conductivity and heat resistance, preserving dimensional stability under working temperatures up to 480°C, in contrast to C17200, which concentrates on mechanical strength.
Chemical Composition
| Element | Content |
|---|---|
| Beryllium (Be) | 0.40–0.70% |
| Cobalt (Co) | 2.40–2.70% |
| Co + Ni | 2.40–2.70% |
| Iron (Fe) | ≤ 0.10% |
| Aluminum (Al) | ≤ 0.20% |
| Silicon (Si) | ≤ 0.20% |
| Copper (Cu) | Balance |
Mechanical & Physical Properties
| Property | Value |
|---|---|
| Tensile Strength | 680–880 MPa |
| Yield Strength | 550–750 MPa |
| Hardness | HRB 92–100 (HV 200–240) |
| Electrical Conductivity | 45–60% IACS |
| Thermal Conductivity | 210–240 W/m·K |
| Max Operating Temperature | 480°C |
Condition: Precipitation Hardened, RWMA Class 3.
Available Dimensions & Tolerances
| Parameter | Range |
|---|---|
| Thickness | 0.10 mm – 3.0 mm |
| Width | 5 mm – 400 mm |
| Width Slitting Tolerance | ±0.05 mm |
| Custom Slitting | Available |
| Supply Form | Strip, Coil |
Strip coils are wrapped with moisture-proof protection, ready for export by sea or air freight.
Key Performance Advantages
For high-current equipment, C17500 Beryllium Cobalt Copper Strip provides steady conductivity without causing local overheating while maintaining fundamental mechanical qualities. It is appropriate for thermally loaded electrical components because it sustains steady spring force and contact pressure during high-temperature cyclic operating conditions. For intricate stamping and bending, the material can be provided in TB00 annealed temper. Standard low-temperature aging is required to achieve official RWMA Class 3 performance. manufacturing scrap is decreased and automated high-speed manufacturing is supported by strict slitting tolerance.
Application Scenarios
It is frequently utilized for treating stainless steel and high-resistance alloys using resistance welding wheels and welding tips. It stabilizes long-term electrical performance by supporting power relay springs and high-voltage switchgear contacts. The alloy is also used in high-current connections for automobiles and aircraft that are resistant to vibration and fatigue, as well as injection mold cooling components to accelerate heat dissipation and decrease molding cycles.
Quality Control & Testing
All coils undergo full-range inspection including OES chemical analysis, eddy current conductivity testing, hardness and tensile testing, dimensional detection and surface inspection to meet standard requirements. Each batch is delivered with EN 10204 3.1 MTC reports with complete batch traceability.
FAQ
Q1: What are the differences between C17500 and C17200?
A1: Although C17200 is stronger, its conductivity is lower. Higher electrical and thermal conductivity makes C17500 more appropriate for situations involving high current and heat dissipation.
Q2: Is soft annealed C17500 available?
A2: Yes. TB00 annealed material supports complex forming, and target hardness and conductivity can be achieved through low-temperature aging after processing.
Q3: What is the slitting tolerance of the strip?
A3: The standard width slitting tolerance is ±0.05 mm, matching automated stamping and assembly production lines.
Q4: What test documents can be provided?
A4: We provide EN 10204 3.1 MTC certificates covering composition, mechanical properties and conductivity with full traceability.
Q5: What is the delivery cycle?
A5: Stock goods ship in 3–5 days, custom sizes are confirmed on order, and formal quotations are provided within 24 hours.
Contact Us
For purchasing, customization and technical consultation of C17500 Beryllium Cobalt Copper Strip, please send your detailed specifications and demands to js01@jstongcai.com.cn. We will reply and offer professional solutions within 24 hours.
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