Copper C17200

Offering an extraordinary combination of steel-like strength and high thermal/electrical conductivity, Copper C17200 (Beryllium Copper) is the ultimate choice for high-performance engineering. It is a precipitation-hardenable alloy that can reach hardness levels up to 45 HRC, making it unique among copper-based materials. Jucheng Precision possesses the specialized technical expertise and safety-compliant facilities required to machine this challenging material. By integrating precision CNC turning with managed age-hardening processes, we deliver critical aerospace bushings, non-sparking tools, and electronic contacts that exhibit superior fatigue resistance and long-term dimensional stability in the most demanding environments.

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C17200 Machining Capabilities

Capability	Technical Description	Jucheng Advantage
Hard Metal Strategy	C17200 can reach 45 HRC. We machine parts in the annealed state (Solution Heat Treated) for efficiency and perform finish-machining after aging.	Our rigid CNC setups handle the high cutting forces of hardened beryllium copper, maintaining +/- 0.005mm tolerances on aerospace bushings.
Precision Swiss Turning	Manufacturing miniature spring pins and electrical sockets with intricate internal features.	We achieve mirror finishes and burr-free edges on complex electronic connectors, ensuring 100% reliable mating cycles.
Age Hardening Management	Managing the critical precipitation hardening process (Condition AT to HT) to maximize mechanical properties.	Jucheng provides a complete turnkey solution, ensuring the parts achieve peak hardness and fatigue strength through controlled heat treatment.
Complex 5-Axis Milling	Milling high-strength structural components and non-sparking tools from solid C17200 blocks.	Our 5-axis capability allows us to machine organic shapes and deep cavities in this abrasive material with minimal tool deflection.

Fabrication Guidelines for C17200 Beryllium Copper

Safety First (Dust Control):
Beryllium dust is a known health hazard. Tip: We utilize specialized wet-machining environments and high-efficiency filtration systems to ensure all particulates are safely contained during the CNC process.

Tooling Selection:
C17200 is highly abrasive. Tip: We use sub-micrograin carbide tools with specialized coatings (like TiAlN or Diamond-like Carbon) to withstand the wear and maintain edge sharpness over long runs.

Work Hardening Awareness:
This alloy work-hardens rapidly if the tool rubs. Tip: We maintain a constant, positive feed rate and never allow the tool to dwell, ensuring the material is sheared cleanly to prevent surface stress.

Magnetic & Sparking Properties:
C17200 is non-magnetic and non-sparking. Tip: This makes it the premier choice for tools used in explosive environments or for components within sensitive magnetic resonance equipment.

Primary Applications

Aerospace & Defense
Bushings for landing gear, wing actuators, and high-strength fasteners that must resist seizing and wear under extreme loads.

Oil & Gas Industry
Drilling tool components, directional sensors, and non-sparking valves used in hazardous subsea environments.

Electronics & Telecom
Precision spring contacts, connectors, and computer probe pins that require high strength and good conductivity.

Precision Instrumentation
Load cells, diaphragms, and bourdon tubes that utilize the material’s excellent elastic properties and fatigue resistance.

Properties

Density	8.25 g/cm³
Tensile Strength	1140 - 1400 MPa
Yield Strength	960 - 1200 MPa
Hardness	38 - 45 HRC
Elongation at Break	3 - 10%
Thermal Conductivity	105 W/m-K
Electrical Conductivity	17 - 25% IACS
Melting Point	865 - 980 °C
Machinability Rating	20% (Hardened)
Fatigue Strength	Superior
Max Part Size	2000 x 800 x 600 mm