Difficult-Alloy Precision CNC Machining
Custom CNC Machining for 17-4 PH Precision Parts
AXALLOY Precision is your trusted CNC machining partner for complex, high-value 17-4 PH precision parts. Based in Shenzhen, we specialize in transforming difficult-to-machine alloys into critical components for aerospace, medical devices, oil and gas, and advanced industrial equipment.
From initial prototype development and design validation to low-volume manufacturing and controlled repeat production, we provide international engineering, procurement, and quality teams with a stable, risk-free manufacturing route.
Why Choose 17-4 PH Stainless Steel?
17-4 PH (Precipitation-Hardening) is a martensitic stainless steel renowned for its exceptional combination of high strength, good corrosion resistance, and excellent mechanical properties at temperatures up to 600°F (316°C).
However, machining 17-4 PH precision parts requires high-rigidity equipment, specialized tooling, and strict process control—especially when machining in the hardened condition (e.g., H900, H1150) or managing post-machining heat treatments to prevent dimensional distortion.
The AXALLOY Advantage for 17-4 PH Machining
We do not just offer machine capacity; we offer manufacturing engineering expertise. Our approach to 17-4 PH precision parts involves evaluating material behavior, geometry, tight tolerances, and inspection strategies before a single chip is cut.
DFM & Engineering Support
We provide thorough drawing reviews, tolerance analysis, and fixture planning to ensure manufacturability and cost-efficiency.
Dimensional Stability
We carefully manage cutting parameters and heat treatment cycles to maintain tight geometric tolerances, even on thin walls and complex contours.
Process Control
Designed for customers who value reliability over the lowest unit price, we guarantee consistent quality from part 1 to part 10,000+.
Core Manufacturing Capabilities for 17-4 PH
We leverage advanced multi-axis CNC technology to produce complex geometries and critical interfaces with minimal setups.
Multi-Axis CNC Milling
Our 3-axis, 4-axis, and 5-axis milling centers handle complex contours, deep pockets, and thin-walled structures typical in aerospace and medical components.
- Max Part Size: Up to 1,000 × 600 × 600 mm (3-Axis) / Ø500 × 400 mm (5-Axis)
- Precision Tolerance: Down to ±0.005 mm
- Positioning Accuracy: ±0.005 mm
- Surface Finish: Down to Ra 0.8 μm (milled)
CNC Turning & Mill-Turn
Ideal for high-strength shafts, valve bodies, and threaded components requiring strong feature relationships.
- Configuration: Up to 9-axis mill-turn with main/sub-spindles, Y-axis, and live tooling.
- Max Turning Dimensions: Up to Ø500 mm diameter and 1,000 mm length.
- Concentricity & Roundness: Down to 0.008 mm and 0.005 mm respectively.
- Swiss Turning: Available for small, complex pins and medical components (up to Ø32 mm).
Wire & Sinker EDM
When 17-4 PH precision parts require narrow slots, sharp internal corners (down to R0.05 mm), or complex internal profiles that cannot be milled, our EDM capabilities deliver precision down to ±0.005 mm.
Precision Grinding & Special Processes
To achieve the ultimate surface finish and mechanical properties for 17-4 PH, we offer:
- Grinding: Surface, cylindrical, and centerless grinding achieving flatness down to 0.003 mm and finishes down to Ra 0.2 μm.
- Special Processes: Heat treatment (aging/hardening), passivation, precision deburring, part marking, and ultrasonic cleaning.
Uncompromising Quality & Documentation
We understand that for OEMs, Tier 1/2 suppliers, and engineering firms, a part is only as good as its documentation. AXALLOY is built to support Supplier Quality Engineers (SQEs) and procurement managers who require absolute traceability and inspection evidence.
Inspection Capabilities
- CMM Inspection: Measuring range up to 700 × 1,000 × 600 mm with accuracy up to 1.8 + L/300 μm.
- Testing: Hardness testing (Rockwell/Brinell), surface roughness measurement (Ra 0.05–40 μm), and optical measurement.
- Environment: Temperature-controlled inspection room with fully calibrated equipment.
Available Quality Documentation
- ✓Material Test Reports (MTR) & Mill Test Certificates
- ✓First Article Inspection Reports (FAIR) & Ballooned Drawings
- ✓Full Dimensional Inspection Reports
- ✓Heat Treatment & Passivation/Coating Certificates
- ✓Certificate of Conformance (CoC)
- ✓Full Material and Lot Traceability
Ideal Applications & Industries
Our 17-4 PH precision parts are engineered for demanding environments. We are the best-fit partner for:
Aerospace
Structural brackets, actuator components, and high-stress fasteners.
Medical Devices
Surgical instruments and durable medical equipment components.
Oil & Gas / Energy
Valve components, pump shafts, and high-pressure manifolds.
Robotics & Automation
Precision gears, drive shafts, and critical structural joints.
Start Your Project with AXALLOY
Whether you are transferring a challenging repeat program from an unreliable supplier or launching a high-value prototype, AXALLOY Precision is ready to support your team.
Standard Lead Times
10–20 business days (5–10 days for prototypes). Expedited services available.
Production Volumes
1 to 10,000+ parts (MOQ: 1 part).
Request a Quote Today
To get started, please submit your complete 2D drawings (PDF, DWG) and 3D CAD models (STEP, IGES, SLDPRT), along with your required quantities, material specifications, and documentation needs. Our engineering team will provide comprehensive DFM feedback and a detailed quotation.