321 Aerospace Turbine Housing Castings
Product Name: 321 Stainless Steel Aircraft Turbine Casing Castings
(Precision Custom Castings for Aerospace Applications)
Product Overview
Our ZG10Cr18Ni9Ti (321 SS) turbine casings are engineered for extreme thermal cycling in aircraft auxiliary power units (APUs) and small turbine engines. Featuring titanium stabilization and precision investment casting, these components maintain dimensional stability at continuous 750°C operation while being 30% lighter than equivalent nickel-based alloys.
Customization Highlight:
✔ Full 3D model compatibility (accepts CATIA/NX/STEP files)
✔ Thin-wall optimization (2.5-8mm sections with uniform grain structure)
✔ Integrated feature casting (mounting lugs, sensor bosses, and cooling channels)
Material Advantages
1. Aerospace-Grade Performance
Ti stabilization: Prevents σ-phase formation during prolonged 650-800°C exposure
Thermal fatigue resistance: 10,000+ cycles (ground-air-ground simulation)
Oxidation control: <0.15mg/cm²/hr at 800°C (AMS 5598 compliant)
2. Precision Manufacturing
Lost-wax casting: ±0.25mm/mm dimensional tolerance
Surface integrity: As-cast Ra≤6.3μm, no stress risers
NDT standards: 100% FPVI per ASTM E1417 + CT scans for critical zones
3. Custom Engineering Support
Wall thickness optimization: FEA-based thinning where allowable
Weight reduction: Topology-optimized designs available
Special requirements:
HIP densification (for 100% density)
Laser-marked part numbering
Coating-ready surfaces
Technical Specifications
|
Parameter |
Value |
Standard |
|
Composition |
Cr:17-19%, Ni:9-12%, Ti:5xC% |
AMS 5598 |
|
Maximum Service Temp |
750°C (continuous) |
AMS 2750 |
|
Wall Thickness Range |
2.5-25mm |
Custom |
|
Leak Test |
1.3x working pressure |
ASTM E499 |
Customization Capabilities
1. Design Flexibility
Accepts:
Forgings-to-casting conversions
Hybrid designs (cast + machined features)
Legacy part reverse engineering
2. Rapid Prototyping
3D printed wax patterns (72h turnaround)
First-article inspection within 10 working days
3. Certification Packages
Material batch traceability (EN 10204 3.2)
NADCAP-accredited testing reports
Customer-specific documentation requirements
Quality Assurance
Per-cast verification:
Chemistry (OES)
Mechanical properties (750°C tested)
Microstructure (ASTM E3)
Dimensional validation:
Laser scanning (±0.1mm)
CMM inspection
Industry Applications
Commercial aviation: APU exhaust casings
UAV systems: Small turbine engine housings
Aircraft retrofits: Replacement casings for legacy engines
Test rigs: High-temperature instrumentation housings
Why Choose Our Custom Castings?
20+ years aerospace casting experience
Complete digital workflow from CAD to finished part
Dual-source capability for critical programs
Certifications:
• AS9100D • NADCAP (NDT, Heat Treat) • ISO 9001:2015
Technical Notes
Design Guidelines: Minimum fillet radius = 1.5x wall thickness
Lead Times:
Prototypes: 4-6 weeks
Production: 12-14 weeks
Post-Casting Options:
Heat treatment per AMS 2750
Ceramic thermal barrier coatings
This profile maintains technical rigor while highlighting:
• Aerospace-specific material properties
• Advanced customization capabilities
• Rigorous quality controls
• Compliance with aviation standards
FAQ
Q: Do you manufacture components for papermaking machinery?
Q: Are your parts suitable for high-speed machinery in paper mills?
Q: What materials are used in your pressure screen rotors?
Q: Do you supply parts to the cement industry?
Q: Can you manufacture wear-resistant parts for rotary kilns?
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