Beryllium Copper Precision Parts
Grade Scope: C17200 (CuBe2 / EN CW101C), C17300 (Leaded BeCu), C17500 (CuCo2Be / EN CW103C), C17510 (CuNi2Be / EN CW110C)
Application Focus: RF/Microwave Connectors, Aerospace Sensors, Medical Probe Pins, & High-Rel Relay Contacts
Executive Standards: ASTM B196, ASTM B194, AMS 4650, SAE AS81021 (for C17500/C17510 strip), ISO 5182
Manufacturing Scope: Custom Precision Swiss CNC Turning, Milling, Wire EDM, & Progressive Stamping to Drawings
Temper Condition: Solution Heat-Treated (TB00) and Precipitation Hardened (AT / TF00) to Specification
Core Purpose: High Elastic Precision, Extreme Dimensional Stability, Low Contact Resistance, and Wear Durability
Quality Assurance: ISO9001:2015, AS9100 Aerospace Certified, RoHS Compliant, MTC 3.1 Certified
Description
Beryllium Copper Precision Parts for Aerospace, Medical & Electronics — High-Strength, Sub-Micron Tolerances
Our Beryllium Copper Precision Parts (C17200, C17300, C17500, C17510) outperform standard copper alloys. Age-hardened grades reach 1450 MPa tensile strength, 42 HRC, 22–60% IACS conductivity.
With 25+ years’ experience since 1997, we use Swiss CNC, wire EDM and stamping for ±0.002 mm tight tolerance. Non-magnetic, dimensionally stable and spring-reliable for aerospace, medical and electronics sectors worldwide.
What Are Beryllium Copper Precision Parts?
These are high-performance workpieces processed from copper-beryllium alloys, suited for scenarios where standard materials can't perform steadily. The alloys combine steel-grade mechanical strength with stable electrical and thermal conductivity — a property combination unique to copper-beryllium materials.
They solve three common engineering problems:
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Stress relaxation in miniaturized connectors and spring contacts
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Sparking hazards in explosive and volatile environments
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Structural deformation of contacts under millions of cyclic loads
Two standard temper states are available: Solution Heat-Treated (TB00) for secondary forming, and Precipitation Hardened (AT/TF00) for direct service.
Available Alloy Grades & Chemical Composition
Choosing the right grade is the single most important decision in your design process. Here is a direct comparison:
| Grade | EN Designation | Be Content | Other Elements | Primary Advantage |
|---|---|---|---|---|
| C17200 | CuBe2 / CW101C | 1.80–2.0% | — | Maximum strength & spring properties |
| C17300 | Leaded BeCu | 1.80–2.0% | Pb 0.20–0.25% | Superior chip-breaking, fast CNC machining |
| C17500 | CuCo2Be / CW103C | 0.40–0.70% | Co 2.40–2.70% | Higher thermal & electrical conductivity |
| C17510 | CuNi2Be / CW110C | 0.20–0.60% | Ni 1.40–2.20% | Balanced conductivity and moderate strength |
C17200 fits scenarios requiring stable elastic memory. C17300 shortens machining cycle time while retaining stable mechanical strength. C17500 and C17510 apply to projects requiring conductivity above 45% IACS and stable structural performance.
Key Technical Specifications
Beryllium copper precision parts comply with mainstream industry standards, with core parameters listed below:
| Parameter | Value / Range |
|---|---|
| Executive Standards | ASTM B196, ASTM B194, AMS 4650, SAE AS81021, ISO 5182 |
| Hardness (Aged) | 36–42 HRC (high-strength) / 92–100 HRB (high-conductivity) |
| Tensile Strength (Aged) | 680–1,450 MPa |
| Yield Strength | 550–1,250 MPa |
| Electrical Conductivity | 22%–60% IACS |
| Machining Tolerance | ±0.002mm (sub-micron Swiss turning) |
| Magnetic Permeability | < 1.001 (fully non-magnetic) |
| Max Operating Temperature | Up to 200°C (spring force retained) |
| Surface Finishing | Gold, Silver, Nickel, Sn-Pb electroplating |
| Quality Certification | ISO 9001:2015, AS9100, RoHS, MTC EN 10204 3.1 |
Important Material Characteristics
Reliable physical qualities for long time use under severe conditions beryllium copper precision parts
High fatigue strength. Suitable for micro-switches and relay connections. After millions of cycles the clamping and the contact force are constant.
Thermal Stability: Good for high temperature automotive and aerospace applications, it has a steady spring force at 200°C.
Non-Magnetic Integrity Low magnetic permeability for MRI equipment, aircraft avionic and high frequency communications.
Non-Sparking Safety: Eliminates spark hazard on equipment utilised in oilfield and explosive offshore settings.
This corrosion resistance increases the life of components in industrial and marine applications.
Capabilities for Precision Manufacturing
Every part is made under total process control. Raw materials are carefully checked for chemical content and vacuum melted to create a consistent grain structure. Progressive stamping may be used for large numbers of contact and spring components. The very exact and sophisticated structural processing is done by Swiss wire EDM and CNC machining. Experts use electroplating to enhance solderability and minimise contact resistance. Precipitation hardening reduces dimensional distortion.
Application Domains
Subsea drilling sensors, 5G telecommunications high-frequency connections, medical device probe pins and MRI-compatible hardware, aircraft and defense avionics connectors, and industrial electronic relay contacts are just a few of the high-demand industries covered by these components.
Inspection and Quality Control
A full-range inspection is performed on each batch of products. Tolerance correctness is confirmed by CMM dimensional testing. Tests for conductivity and hardness evaluate a material's performance. Alloy composition and plating thickness are verified by OES and XRF testing. On request, SEM microstructure testing is offered. Complete product traceability records and EN 10204 3.1 MTC certifications are included with every shipment.
FAQ
Q1: Are finished beryllium copper parts safe to handle?
A1: Yes. Only machining dust requires ventilation control during production. Solid finished parts are safe for assembly and medical industry applications.
Q2: How to choose between C17200 and C17500?
A2: Select C17200 for higher strength and stable spring performance; select C17500 for projects requiring conductivity above 45% IACS.
Q3: Will age-hardening cause dimensional deviation?
A3: Age-hardening brings minor volume changes. We adopt fixture-positioning heat treatment and post-process calibration to keep parts within standard tolerances.
Q4: Are these beryllium copper parts recyclable?
A4: Yes. The materials can be recycled via closed-loop systems to cut down customer procurement costs.
Q5: What are your quotation and delivery terms?
A5: We provide 24-hour quotation service. In-stock products ship in 3–5 days, while customized product lead time depends on structural complexity.
Contact Us
Send your product drawings and technical specifications to js01@jstongcai.com.cn for professional technical assessment and formal quotation within 24 hours. We offer tailored beryllium copper precision parts solutions for global industrial buyers.
