Custom precision CNC machining TC11 titanium alloy parts in China

Chemical Composition & Phase Structure

TC11 (nominal composition Ti-6.5Al-3.5Mo-1.5Zr-0.3Si) is a near-alpha titanium alloy engineered for elevated-temperature service. The balanced addition of aluminum, molybdenum, and zirconium provides an excellent combination of high-temperature strength, creep resistance, and thermal stability up to approximately 500°C. This makes TC11 a preferred choice for compressor discs, blades, and structural components in gas turbine engines.

With our in-house expertise in custom CNC machining TC11 titanium alloy parts in China, we routinely handle the challenges of this alloy's work-hardening tendency and low thermal conductivity through optimized toolpaths, specialized cutting tools, and controlled coolant strategies.

Typical Mechanical Properties

Tensile strength of TC11 typically ranges from 1030 MPa to 1230 MPa depending on heat treatment condition, with yield strength between 930 MPa and 1130 MPa. Elongation values of 8% to 13% are achievable. The alloy exhibits outstanding fatigue resistance and maintains structural integrity under cyclic thermal loading.

Our machining process for custom CNC machining TC11 titanium alloy parts in China preserves these mechanical characteristics by minimizing heat-affected zones and avoiding microstructural damage during material removal.

High-Temperature Strength

Retains mechanical integrity up to 500°C, making it ideal for hot-section aerospace and turbine components.

Superior Corrosion Resistance

Excellent resistance to seawater, chloride environments, and industrial chemical exposure extends service life.

High Strength-to-Weight Ratio

Approximately 40% lighter than nickel-based superalloys with comparable strength levels, reducing rotating mass.

Creep & Fatigue Resistance

Near-alpha microstructure delivers exceptional long-term stability under sustained load and thermal cycling.

Weldability & Fabricability

TC11 can be successfully welded and heat-treated, enabling complex assemblies and repair operations.

Dimensional Stability

Low coefficient of thermal expansion ensures tight tolerances are maintained across operating temperature ranges.

Long Service Life

Excellent oxidation resistance and microstructural stability reduce maintenance frequency and replacement costs.

Proven Aerospace Heritage

Used extensively in compressor discs and blades across multiple commercial and military engine platforms.

5-Axis Simultaneous Milling

Complex contoured surfaces, impellers, blisks, and structural brackets machined in a single setup with high positional accuracy.

Precision Turning & Mill-Turn

Shafts, rings, casings, and cylindrical components with diameters up to 600 mm and tolerances within ±0.005 mm.

Wire EDM & Sinker EDM

Intricate profiles, deep slots, and fine features that are difficult to produce with conventional cutting tools.

Thin-Wall Machining

Aerospace-grade thin-wall structures down to 0.5 mm wall thickness with controlled deflection and vibration damping strategies.

Surface Finishing & Polishing

Achievable surface roughness Ra 0.2 μm or better through optimized cutting parameters, vibratory finishing, and manual polishing.

Heat Treatment Support

Coordination with qualified heat-treatment partners for solution treatment, aging, and stress relief of TC11 components per specification.

Dimensional Inspection

Coordinate measuring machine (CMM) inspection with measurement reports provided for all critical dimensions. Typical achievable tolerances for TC11 components range from ±0.01 mm for general features to ±0.005 mm for precision bores and mating surfaces. Surface finish verification is performed using profilometry.

For high-volume production of custom CNC machining TC11 titanium alloy parts in China, statistical process control (SPC) tracking is available to monitor key characteristics and ensure consistent quality.

Material Traceability

Full material traceability is maintained from raw material receipt through final inspection. Each TC11 component can be traced back to its original heat lot, with retained documentation including chemical analysis, mechanical property test reports, and heat treatment records when applicable.

For industries with stringent documentation requirements, we can provide material certificates, inspection reports, and process documentation packages tailored to your specific quality system.

Titanium-Specific Expertise

Years of focused experience machining titanium alloys, including TC11, TC4, TA15, and other difficult-to-machine grades. We understand the metallurgical nuances that affect tool life and part quality.

Advanced CNC Equipment

Multi-axis machining centers and turning centers specifically configured for titanium machining with high-torque spindles and rigid structures.

Prototype to Production

From single-piece prototypes to batch production of thousands of parts, we scale our process to match your program requirements without compromising quality.

Responsive Engineering Support

Design-for-manufacturing feedback, material selection guidance, and ongoing communication throughout the project lifecycle for custom CNC machining TC11 titanium alloy parts in China.