AXALLOY AXALLOY

Precision Machining for Cupro Nickel 90/10 (UNS C71500 / C70600)

CuNi 90/10 Machining Services

AXALLOY Precision — Shenzhen-based CNC machining partner specializing in complex, high-value components made from difficult-to-machine alloys. We support international engineering, procurement and quality teams from prototype development through low-volume and repeat production.

We evaluate material behavior, geometry, tolerances, surface requirements, inspection strategy and production volume before defining the machining process.

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Why AXALLOY for CuNi 90/10 Machining?

CuNi 90/10 (copper-nickel alloy 90% Cu / 10% Ni, UNS C71500) offers outstanding corrosion resistance in seawater and biofouling, plus excellent thermal conductivity and mechanical strength — making it ideal for marine, chemical, offshore, heat exchanger, condenser, and petrochemical applications. However, it requires careful handling due to its work-hardening tendency and high ductility.

We excel where others do not:

  • Proven experience with difficult alloys including copper-nickel, nickel-based superalloys, titanium, and cobalt alloys.
  • Consistent process control, material traceability, and documentation — exactly what your quality, engineering, and procurement teams demand.
  • Supported by our complete facility: multi-axis CNC milling (3/4/5-axis), turning, mill-turn, Swiss CNC, Wire EDM, Sinker EDM, and precision grinding.
  • Aerospace / marine / energy / robotics customers trust us for complex geometry, thin walls, critical interfaces, and tight tolerances.
CuNi 90/10 precision CNC machined components

Our Machining Capabilities for CuNi 90/10

Process Key Strengths & Capabilities
3-Axis / 4-Axis / 5-Axis Milling Complex contours, pockets, thin walls, precision interfaces. Max part size up to 1,000 × 600 × 600 mm.
Turning & Mill-Turn Shafts, nozzles, fittings, valve bodies. Up to 9 controlled axes.
Swiss CNC Turning Small-diameter precision fittings, pins, connectors (Ø0.5–32 mm).
Wire EDM / Sinker EDM Narrow slots, sharp internal corners, blind features, precision inserts (Ra 0.4–0.8 μm).
Precision Grinding Shafts, sealing surfaces, bearing fits (Ra 0.2 μm, ±0.002 mm).
Assembly & Special Processes Deburring, passivation, coating, heat treatment, cleaning.

Standard Tolerances

  • Dimensional:±0.005 mm (precision)
  • Angular:±0.1°
  • Flatness:down to 0.005 mm
  • Concentricity:down to 0.008 mm
  • Surface Finish:Ra 0.8 μm (precision), down to Ra 0.2 μm (ground)

Supported File Formats

STEP, STP, IGES, X_T, X_B, SLDPRT, SAT, PDF, DWG, DXF (up to 500 MB per RFQ).

Lead Times

  • Prototypes: 5–10 business days
  • Low-volume production: 10–20 business days (expedited service available)

Recommended Machining Practices for CuNi 90/10

Tooling

  • Coated carbide (TiN/TiAlN) or PCD with positive rake angles and chip-breaking geometries.
  • Avoid dwell time; use sharp tools to prevent work hardening.

Cutting Parameters

  • Cutting speed: 100–200 m/min (carbide)
  • Feed rate: 0.05–0.2 mm/rev
  • Depth of cut: 0.1–2 mm (shallow for finishing)
  • Climb milling preferred to reduce work hardening.

Cooling & Lubrication

  • High-pressure coolant (sulfur-free) to control heat and chip evacuation.
  • Maintain workpiece temperature to minimize hardening.

Best Practices

  • Sharp tools + consistent parameters = minimal work hardening.
  • Anneal or stress-relieve when possible for larger or more complex parts.
  • Full material traceability and first-article inspection on every job.

Quality & Documentation

  • CMM (700 × 1,000 × 600 mm)
  • Material certificates, mill test reports, first-article inspection reports
  • Ballooned drawings, surface roughness reports, heat-treatment/coating certificates
  • Temperature-controlled inspection room
  • Full traceability and custom quality plans

Minimum Order Quantity: 1 part

Industries & Projects We Serve Best

Ideal for

  • Marine & offshore (valve seats, propellers, piping)
  • Heat exchangers & condensers
  • Petrochemical & chemical processing equipment
  • Precision electrical / instrumentation components
  • Complex assemblies requiring thin walls and tight tolerances

Not ideal for

  • Commodity parts bought solely on lowest price
  • Incomplete drawings or unverified material certification
  • Unauthorized reproduction of existing designs

Strong project inputs we love

  • Complete 2D drawings + 3D models
  • Defined CuNi 90/10 grade and critical features
  • Target quantities and realistic delivery date
  • Required documentation and export-ready packaging

Ready to Quote Your CuNi 90/10 Project?

Upload your drawings (STEP/IGES/X_T preferred) or send us an RFQ with part description, material specification, quantities, and critical requirements.

AXALLOY Precision

Shenzhen, China

CNC machining for difficult alloys — precision you can trust.

Contact our engineering team for free DFM feedback on any CuNi 90/10 project.

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