Beryllium Copper Strip 0.1mm
Grade Equivalents: UNS C17200 / CuBe2 / Alloy 25 / RWMA Class 4 / EN CW103C
Application Focus: Micro-Electronic Springs, Miniaturized Connectors, EMI Shielding Finger Stock, & Sensor Diaphragms
Executive Standards: ASTM B194, ASTM B248, SAE J463, ISO 5182
Size Range: Precision Thickness 0.1mm (Tolerance per ASTM B194), Width up to 300mm, Slit Micro-Coils
Temper Condition: Annealed (TB00), Pre-Rolled Tempers, or Precipitation Heat-Treated (TF00)
Core Purpose: Ultra-Thin Precision Deflection Combined with Ultimate Elastic Spring Resilience
Quality Assurance: ISO9001:2015, RoHS Compliant, MTC 3.1 Certified
Description
Beryllium Copper Strip 0.1mm — Ultra-Thin C17200 Precision Foil for Micro-Electronic & Connector Applications
With a beryllium concentration of 1.80–2.00%, our Beryllium Copper Strip 0.1 mm is a professional C17200 Alloy 25 precision foil. The Beryllium Copper Strip 0.1mm thick strip, produced at a facility with more than 25 years of expertise producing copper alloys, has 22–28% IACS electrical conductivity, 1110–1320 MPa tensile strength, and 36–42 HRC hardness following age treatment. It is made in accordance with ASTM B194 standards and has a thickness tolerance of ±0.008 mm. Every batch satisfies RoHS and REACH regulations, and comprehensive EN 10204 3.1 test certifications are given for complete material traceability.
What Makes This 0.1mm Strip Different from Standard Beryllium Copper?
While ultra-thin Beryllium Copper Strip 0.1mm standards need more stringent production control for grain structure, surface smoothness, and dimensional stability, conventional beryllium copper strips are often manufactured beyond 0.3mm thickness. To stabilize the Alloy 25 matrix, we use vacuum melting technique, keeping the beryllium concentration within the specified range and the Co+Ni content above 0.20%. We maintain a uniform thickness of ±0.008mm over the full coil width thanks to our precision rolling equipment. Long-term high-speed progressive die stamping with a constant output effect is appropriate for this reliable dimensional performance.
Technical Specifications
| Parameter | Value |
|---|---|
| Grade | C17200 / CuBe2 / Alloy 25 / EN CW103C |
| Thickness | 0.1mm (Tolerance ±0.008mm) |
| Width | Up to 300mm, slit micro-coils available |
| Temper Options | Annealed (TB00), Pre-Rolled, or Aged (TF00) |
| Be Content | 1.80 – 2.00% |
| Co+Ni Content | Min 0.20% |
| Tensile Strength (Aged) | 1110 – 1320 MPa |
| Yield Strength | 950 – 1150 MPa |
| Hardness (Aged) | 36 – 42 HRC / 350 – 420 HV |
| Electrical Conductivity | 22 – 28% IACS |
| Thermal Conductivity | 105 W/m·K |
| Executive Standards | ASTM B194, ASTM B248, SAE J463, ISO 5182 |
| Magnetic Permeability | < 1.001 (fully non-magnetic) |
| Certification | ISO 9001:2015, RoHS, REACH, MTC 3.1 |
Key Performance Advantages
Fatigue Resistance: The aged material structure adapts to millions of cycle operations of small spring connections and resists deformation under repeated micro pressures despite the incredibly thin 0.1 mm gage.
Excellent Formability: Complex forms may be cleanly stamped in the annealed TB00 phase, and finished components can be heat-treated to prevent structural deformation.
Stress Relaxation Resistance: The strip maintains a steady clamping force below 200°C to prevent stress relaxation throughout temperature cycles.
Precision electronic equipment can prevent magnetic interference by being non-magnetic and spark-resistant.
Reliable Surface Quality: Extensive surface inspection, which removes minute flaws, guaranties stable stamping processes and trustworthy plating adherence.
Application Scenarios
Beryllium Copper Strip 0.1mm is widely applied in precision microelectronic industries. It serves 5G and smartphone battery contacts and board-to-board connectors, maintaining stable contact force during frequent plugging cycles. The material fits EMI shielding finger stock for medical MRI and defense electronic equipment to stabilize electromagnetic shielding performance. It is also applicable to aerospace and automotive sensor diaphragms, as well as IC sockets and micro switch contacts, stabilizing signal transmission with uniform grain structure and steady conductivity.
Quality Control Process
Every coil goes through a three-step, uniform inspection procedure:
Incoming Material Verification: Prior to manufacturing, ICP-OES chemical analysis confirms the composition of raw materials.
In-Process Monitoring: To guaranty microstructure homogeneity, laser real-time gaging keeps an eye on rolling parameters and thickness throughout processing.
Final Product Testing: Unqualified goods are filtered out using hardness, tensile performance, grain size detection, and AOI surface scanning.
Complete batch traceability data and EN 10204 3.1 certifications are attached to every shipment.
Ordering & Supply Information
In-stock products can be delivered within 3–5 working days. We support custom slit widths and exclusive temper configuration including TB00 and TF00 states. All custom orders get formal quotations within 24 hours. We provide complete sea and air freight solutions with full customs documents for global markets including Europe, North America and Southeast Asia.
Frequently Asked Questions
Q1: What is the standard heat treatment process?
A1: Standard aging is 315°C for 2–3 hours under inert atmosphere to avoid surface oxidation for ultra-thin materials.
Q2: How does BeCu strip differ from phosphor bronze?
A2: It delivers higher tensile strength and better conductivity, with more stable performance under long-term high-frequency cyclic use.
Q3: Is the solid strip safe for daily handling?
A3: Solid finished products cause no hazards. Protective ventilation is only required during grinding and welding processes.
Q4: Are custom micro-coil slitting services available?
A4: Yes, we support custom width slitting within 300 mm and customized micro-coil specifications per drawings.
Contact Us
Feel free to contact us for product quotations and technical datasheets of Beryllium Copper Strip 0.1mm. Send your demands to js01@jstongcai.com.cn, and our team will reply and provide professional support within 24 hours.
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