Aerospace Fasteners Guide: Why Inconel 718, A286 and 17-4PH Are Critical for Aircraft Applications
Aerospace Fasteners Guide: Why Inconel 718, A286 and 17-4PH Are Critical for Aircraft Applications
The aerospace industry requires some of the world's most demanding fastening solutions. Components must withstand extreme temperatures, vibration, fatigue loads, and corrosive environments while maintaining structural integrity.
For over 30 years, Chuanghe Fasteners has manufactured custom aerospace fasteners using high-performance materials.
Aerospace Material Requirements
Aircraft fasteners require:
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High tensile strength
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Excellent fatigue resistance
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Corrosion resistance
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Lightweight performance
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Dimensional precision
Aerospace Materials We Commonly Machine
Inconel 718
Widely used in aerospace engines and high-temperature environments due to its exceptional strength and oxidation resistance.
A286 Alloy
A precipitation-hardened alloy known for excellent creep resistance and elevated temperature performance.
17-4PH Stainless Steel
Offers a combination of strength, corrosion resistance, and cost efficiency.
MP35N
Provides ultra-high strength and outstanding corrosion resistance for mission-critical applications.
7075-T6 Aluminum
Ideal for lightweight aerospace structures.
Manufacturing Processes
Chuanghe provides:
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Precision CNC Turning
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Cold Heading
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Secondary Machining
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Heat Treatment Support
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Surface Finishing
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Full Dimensional Inspection
Why Aerospace Customers Choose Chuanghe
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30+ Years Manufacturing Experience
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Custom Engineering Support
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Small to High Volume Production
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Tight Tolerance Machining
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Global Supply Capability
From prototype development to mass production, Chuanghe supports aerospace OEMs and Tier suppliers worldwide.
requently Asked Questions About Aerospace Fasteners
1. What materials are most commonly used in aerospace fasteners?
Popular aerospace materials include:
- Inconel 718
- A286
- 17-4PH
- 15-5PH
- MP35N
- 300M Steel
- Titanium Alloy
- 7075-T6 Aluminum
2. Why is Inconel 718 widely used in aircraft fasteners?
Inconel 718 offers:
- Excellent high-temperature strength
- Oxidation resistance
- Corrosion resistance
It remains stable under extreme aerospace operating conditions.
3. What temperature can Inconel 718 withstand?
Inconel 718 maintains excellent mechanical properties up to approximately 700°C.
This makes it suitable for aircraft engine and turbine applications.
4. What is A286 used for in aerospace applications?
A286 is commonly used for:
- Aircraft engine fasteners
- Turbine components
- High-temperature structural parts
Because of its excellent creep resistance.
5. What are the advantages of MP35N fasteners?
MP35N provides:
- Ultra-high strength
- Exceptional fatigue resistance
- Outstanding corrosion resistance
It is often used in mission-critical aerospace systems.
6. Why are titanium fasteners popular in aircraft structures?
Titanium offers:
- High strength-to-weight ratio
- Excellent corrosion resistance
- Significant weight savings
Reducing aircraft weight improves fuel efficiency.
7. What is the difference between 15-5PH and 17-4PH?
15-5PH generally offers:
- Better toughness
- More uniform mechanical properties
While 17-4PH is more economical and widely available.
8. Can aerospace fasteners be manufactured with tight tolerances?
Yes.
Precision CNC machining can achieve tolerances as tight as ±0.005 mm depending on geometry.
9. What inspections are required for aerospace fasteners?
Typical inspections include:
- Dimensional Inspection
- Material Verification
- Hardness Testing
- FAI
- NDT Inspection
10. How do aerospace manufacturers ensure fastener reliability?
Through:
- Material traceability
- Process control
- Heat treatment validation
- 100% inspection for critical dimensions
CHUANGHE INDUSTRIAL(HK) LIMITED Chuanghe Fastener Co, Ltd. (CHE ) offers OEM & ODM & Customized services to customer, which included cold heading, CNC processing center, wire cutting, powder metallurgy processing and assembly of metal parts with plastic parts.We have industry leading quality inspection equipment such as 3D scanner, Ultrasonic Flaw Detector etc