Beryllium Copper Machined Parts
Grade Scope: UNS C17200 (Alloy 25), UNS C17300 (Leaded BeCu), UNS C17500 (CuCo2Be), UNS C17510 (CuNi2Be)
Application Focus: Aerospace Actuator Pivots, Downhole Valve Seats, Resistance Welding Arms, & Precision Mold Inserts
Executive Standards: ASTM B196, AMS 4650, SAE J463, ISO 5182
Manufacturing Scope: Custom Multi-Axis CNC Turning, Milling, Wire EDM, Deep Boring, & Cylindrical Grinding
Temper Condition: Solution Heat-Treated (TB00) and Precipitation Hardened (AT / TF00) to Drawing Specifications
Core Purpose: Extreme Load Capacity, Outstanding Anti-Galling Protection, Zero-Spark Safety, and Precise Tolerances
Quality Assurance: ISO9001:2015, AS9100 Aerospace Quality Certified, RoHS Compliant, MTC 3.1 Certified
Description
Beryllium Copper Machined Parts for Aerospace, Oil & Gas, and Precision Engineering — High-Tolerance CNC Components
Beryllium Copper Machined Parts solve practical engineering limitations of conventional copper alloys for harsh industrial working conditions. Supplied by Dongguan Jiaye Dingsheng with over 25 years of copper alloy manufacturing experience, our components adopt C17200, C17300, C17500 and C17510 standard grades. All parts are processed via precision CNC machining with tolerance controlled within ±0.003mm, and deliver up to 1400 MPa tensile strength after precipitation hardening. Supported by ISO 9001:2015 and AS9100 certification, every batch is delivered with EN 10204 3.1 mill test certificates, widely applied in aerospace actuators, oilfield downhole tools, resistance welding structures and precision mold inserts.
What Are Beryllium Copper Machined Parts?
Beryllium copper machined parts are precision components made from copper-beryllium alloys employing deep drilling, cylindrical grinding, wire EDM, multi-axis CNC turning, and milling.
The mechanical strength of high-alloy steel and the electrical and thermal conductivity of copper are balanced in this alloy system. It functions well in circumstances where traditional metals cannot tolerate extended wear cycles, friction spark hazards, or high-precision clearance matching.
There are two temperatures available: TB00 solution heat-treated and AT/TF00 precipitation-hardened. complies with ISO 5182, AMS 4650, SAE J463, and ASTM B196. Completely processed for client designs.
Material Grades and Chemical Composition
Selecting the right alloy grade directly affects machinability, strength, and conductivity. Here is a summary of the grades available:
| Grade | Be Content | Other Elements | Key Characteristic |
|---|---|---|---|
| C17200 (Alloy 25) | 1.8–2.0% | Cu Bal | Highest strength BeCu alloy |
| C17300 (Leaded BeCu) | 1.8–2.0% | Pb 0.2–0.6%, Cu Bal | Superior machinability for Swiss CNC |
| C17500 (CuCo2Be) | 0.40–0.70% | Co 2.40–2.70%, Cu Bal | High conductivity grade |
| C17510 (CuNi2Be) | 0.20–0.60% | Ni 1.4–2.2%, Cu Bal | High conductivity + strength balance |
C17300 is particularly useful for complex Swiss lathe operations. Its lead addition improves chip breaking and reduces tool wear without sacrificing the core mechanical properties of C17200.
Technical Specifications
| Parameter | C17200 / C17300 | C17500 |
|---|---|---|
| Tensile Strength (Aged AT) | 1,170 – 1,400 MPa | 680 – 850 MPa |
| Yield Strength | 980 – 1,200 MPa | — |
| Hardness (Aged AT) | 38 – 44 HRC | 95 – 102 HRB |
| Thermal Conductivity | 105 – 130 W/m·K | 200 – 245 W/m·K |
| Electrical Conductivity | 15–22% IACS | 45–60% IACS |
| Density | 8.25 g/cm³ | 8.75 g/cm³ |
| Melting Point | ~870 – 980°C | ~900 – 1000°C |
| Machining Tolerance | ±0.003mm | ±0.003mm |
| Surface Finish (Ra) | 0.2 – 0.4 µm | 0.2 – 0.4 µm |
| Magnetic Permeability | < 1.001 | < 1.001 |
Key Performance Advantages
Precipitation hardening of C17200 at 315°C for two to three hours provides a steady structural strength to resist high impact, torsion and radial stresses. This enables it to be adapted to complex aircraft building and downhole tool operation.
The alloy also possesses uniform anti-galling and anti-seizure capabilities when in contact with titanium, stainless steel and hardened steel components. This minimises the chances of component failure due to reduced adhesion of metals and scuffing of surfaces during high cycle sliding movement.
Excellent material properties for oil and gas and chemical plant applications with flammable and explosive hazards. No friction sparks under high impact and high friction. Its non-magnetic property will avoid signal interference with drilling sensors and precision aviation instruments, and will satisfy MWD downhole equipment operating rules.
The material will not corrode when exposed to sour gas, hydraulic fluid, maritime salt spray and ordinary industrial chemicals. It can withstand more than 10 fatigue cycles, which provides high-frequency probes and connecting elements with a uniform service life.
Manufacturing Process and Quality Control
Vacuum melting, precision rolling, expert heat treatment, multi-axis CNC machining, and final product inspection are all part of our standardized production process.
Deep drilling, cylindrical grinding, wire EDM shaping, and multi-axis turning and milling are examples of core machining capabilities. A Ra 0.2–0.4 µm smooth finish may be obtained on both exterior and interior surfaces.
Full-range inspection includes surface roughness testing, salt spray testing, OES chemical composition analysis, post-aging hardness testing, CMM dimensional calibration, eddy current conductivity verification, and microstructure inspection.
Comprehensive batch traceability from raw materials to completed goods and EN 10204 3.1 test reports with composition, hardness, and conductivity data are included with every shipment.
Application Scenarios
Aerospace and Defense: Used in guiding connections, actuator pivots, pitot tube components, and landing gear bushings. Vibration, salt corrosion, and cryogenic environments as low as -200°C do not affect the material's mechanical performance.
Oil and Gas Industry: Used for downhole valve seats, MWD sensor housings and safety tool parts. Reliable sensor data is ensured by non-magnetic design, and high hardness avoids deterioration from abrasive drilling media.
Probe pins, spring contacts, and RF connections for 5G and ATE equipment are all appropriate for precision electronics and semiconductor testing. For smaller precision constructions, reliable heat dissipation is guarantyd by high thermal conductivity.
Other Industrial Uses: Widely used to stabilize dimensional accuracy and increase continuous production efficiency for resistance welding arms and precision mold inserts.
Customization and Ordering
We support customized dimensions, alloy grades, temper states, surface finishes and tolerance standards. Our engineering team provides free material selection and application technical consultation.
Compliance & Certification: ASTM B196, AMS 4650, SAE J463, ISO 5182, ISO 9001:2015, AS9100, RoHS, REACH
Service Cycle: Quotation within 24 hours; stock parts delivery in 3–5 days; custom machined parts lead time 2–4 weeks (including heat treatment)
FAQ
Q1: How does post-machining aging affect performance?
A1: Parts are machined in TB00 annealed state, then aged at 315°C to stabilize hardness and conductivity for formal application.
Q2: Are finished parts safe to handle?
A2: Solid finished parts are safe for manual handling. Risks only come from dust and fumes during machining, controlled by on-site filtration and cooling.
Q3: Can C17300 replace C17200 for complex CNC?
A3: Yes. C17300 is optimized for high-speed Swiss turning with better chip removal, retaining the same strength as C17200 after aging.
Q4: Lead time for custom orders?
A4: Custom parts take 2–4 weeks based on complexity and heat treatment. Semi-finished stock ships in 3–5 days.
Q5: Performance under cryogenic conditions?
A5: Unlike ordinary steel, it won't brittle at low temperatures. Stable tensile strength and impact resistance down to -200°C, suitable for cryogenic precision components.
Contact Us
If you have procurement or customization needs for Beryllium Copper Machined Parts, please send your detailed specifications and design drawings to js01@jstongcai.com.cn.
