Precision CNC Machining Partner
Super Duplex Turning Services
Precision CNC turning for duplex and super duplex stainless steels, including Super Duplex 2507. AXALLOY Precision is a Shenzhen-based machining partner specializing in difficult-to-machine alloys and high-value components, supporting international engineering, procurement and quality teams from prototype through low-volume and repeat production.
Material Advantage
Why Super Duplex Turning
Super duplex stainless steels (e.g., 2507) combine high strength with excellent corrosion resistance, making them ideal for demanding environments:
Oil & Gas
Subsea, topside, sour service, high-pressure fittings and valve components
Marine
Corrosion-resistant shafts, bushings, nozzles and connectors
Energy & Industrial
Manifolds, pump parts, instrumentation, flow-control components
Process note: These materials demand a controlled machining process to mitigate work hardening, maintain geometry and achieve repeatable surface integrity on critical features.
Material Expertise
Duplex & Super Duplex Stainless Steels
AXALLOY’s material focus includes duplex and super duplex stainless steels:
- Duplex 2205 and Super Duplex 2507
- Related alloys: 304/316L, 15-5 PH, 17-4 PH, A286, Nitronic 50/60, and nickel/titanium/cobalt alloys
Our approach: evaluates material behavior, geometry, tolerances, surface requirements, inspection strategy and volume before defining the machining process.
Capability Snapshot
Core Turning Specifications
- Max turning diameter
- Ø500 mm
- Max turning length
- 1,000 mm
- Max bar capacity
- Ø80 mm
- Spindle speed
- Up to 5,000 rpm
- Turning tolerance
- Down to ±0.005 mm
- Concentricity
- Down to 0.008 mm
- Roundness
- Down to 0.005 mm
- Min machined diameter
- Ø1.0 mm
- Min thread size
- M1.0
- Surface finish
- Ra 0.2–1.6 μm
Supported operations: turning, facing, grooving, threading, boring, drilling, parting
Turning Platforms
Advanced Machining Solutions for Super Duplex Parts
Turning
Up to Ø500 mm
- Chuck size6–15 inches
- Diameter tolerance±0.005 mm
- Std. finishRa 1.6 μm
- Precision finishRa 0.8 μm
- Ground finishRa 0.2 μm
Mill-Turn
Complex Parts · Up to 9 Axes
- Max diameterØ400 mm
- Max length800 mm
- Positioning accuracy±0.005 mm
- Repeatability±0.003 mm
- Typical tolerance±0.008 mm
Off-center drilling, milling, tapping, grooving and complex feature relationships with fewer setups.
Swiss CNC
Small Components · Up to 10,000 rpm
- Max bar diameterØ32 mm
- Max part length300 mm
- Min part diameterØ0.5 mm
- Repeatability±0.003 mm
- Min thread sizeM0.8
Ideal for precision pins, screws, miniature fittings, medical and instrumentation components.
Process Control
Controlled Machining for Duplex & Super Duplex
Tooling Strategy
Optimized insert geometry and grades for tough, work-hardening stainless steels; controlled nose radius and edge prep to balance tool pressure and finish.
Cutting Parameters
Stable, consistent feed rates; avoiding dwell to limit work hardening; chip control tuned for long, tough chips.
Coolant & Heat Management
High-pressure, directed coolant for edge stability and chip evacuation; thermal control to protect surface integrity.
Fixturing & Rigidity
Robust clamping, minimized overhang and vibration mitigation to maintain geometry on thin walls and long slender features.
Toolpath Planning
Reduced passes on critical surfaces, supported approach for interrupted cuts, feature sequencing for minimal distortion.
Special Processes
Precision grinding for bearing fits and sealing surfaces; passivation, deburring, marking and cleaning; EDM for narrow slots or sharp internal corners.
Engineering Support
Design & Manufacturing Partnership
- Drawing review and DFM feedback specific to duplex and super duplex materials
- Tolerance and datum scheme review for critical interfaces
- Fixture planning and manufacturing-process development
- Early engagement for prototype and design validation builds
Inspection & Documentation
Verification & Traceability
Documentation: material test reports, mill test certificates, certificates of conformance, first article inspection, ballooned drawings, full dimensional reports, surface roughness reports, special process records, traceability and inspection photos upon request.
Custom inspection plans and project-specific quality records available.
Applications
Typical Super Duplex Turning Parts
Valve Components
Seats, stems, cages, bodies (with mill-turn features)
Fittings & Connectors
High-pressure couplings, instrumentation ferrules
Nozzles & Sleeves
Corrosion-resistant, high-strength applications
Shafts & Bushings
Marine, pump and subsea service
Threaded Components
NPT, BSPP/BSPT, metric and UN thread forms
Rotational Components
Multi-feature parts requiring tight concentricity and controlled surfaces
Industries & Projects
Where We Deliver
Industries Served
Aerospace, medical devices, semiconductor equipment, energy, oil and gas, marine, robotics, automation and precision industrial equipment
Best-Fit Projects
Complex geometry, thin walls, critical interfaces, tight geometric tolerances, demanding surfaces and challenging holes/threads
Commercial Profile
High-value prototypes, low-volume/high-mix production, repeat programs and supplier transfers where process control and documentation are mandatory
Production Scale
From Prototype to Production
Supported Volumes & Lead Times
- Prototype
- 1–20 parts
- Low-volume production
- 20–500 parts
- Batch production
- 500–10,000+ parts
- Standard lead time
- 10–20 business days
- Prototype lead time
- 5–10 business days
- Expedited service
- Available
- Minimum order quantity
- 1 part
Markets served: North America, Europe, UK, Australia, New Zealand and advanced manufacturing markets across Asia.
Full-Service Machining
Complementary Capabilities
CNC Milling
3-axis, 4-axis and 5-axis CNC for complex contours and interfaces
EDM Services
Wire and sinker EDM for tight profiles, narrow slots, sharp internal corners; accuracy down to ±0.005 mm
Precision Grinding
Surface, cylindrical and centerless; tolerance down to ±0.002 mm; finish down to Ra 0.2 μm
Special Processes
Heat treatment, passivation, coating, deburring, marking, cleaning and assembly support
RFQ Checklist
Prepare Your Super Duplex Turning Inquiry
To accelerate accurate quotations and manufacturability feedback, please include the following in your RFQ:
- 2D drawing (PDF) with tolerances, datums and critical features; 3D model (STEP/IGES/etc.)
- Material grade and specification (e.g., Super Duplex 2507; relevant standards if required)
- Quantities: prototype and/or production batch sizes
- Surface requirements: finish, grinding, passivation, coatings
- Threads: type, pitch, tolerances and gaging requirements
- Inspection and documentation: FAI, dimensional reports, traceability, certificates
- Special processes and packaging: corrosion protection, export-ready packaging
- Target date and delivery location
Supported File Formats
3D CAD
STEP, STP, IGES, IGS, X_T, X_B, SLDPRT, SAT
2D Drawings
PDF, DWG, DXF
Images
JPG, PNG, TIFF
Compressed
ZIP, RAR
Maximum upload size: 500 MB per RFQ
Drawing units: Millimeters and inches
Why Choose Us
Why AXALLOY for Super Duplex Turning
Difficult-Alloy Specialization
Proven process control for duplex and super duplex stainless steels
Dimensional Integrity
Tight concentricity, roundness and surface quality on critical interfaces
Documentation & Traceability
Export-ready records aligned with aerospace, energy and industrial standards
Communication & Dependability
Responsive engineering, procurement and quality support throughout the project lifecycle
Get Started
Request Your Super Duplex Turning Quote
Share your RFQ and technical package with AXALLOY Precision’s Super Duplex Turning team. We will review your drawings, provide DFM/tolerance feedback and propose a stable production route from prototype to repeat orders.
What You Can Expect
- Technical review of your drawings within 1–2 business days
- DFM feedback and manufacturability recommendations
- Competitive quotation with clear process and inspection plan