


Tungsten Alloy Aircraft Wing Spar Counterweight
Class 2 / Class 3 heavy alloy counterweight integrated into spar extensions and wingtips — 17.5–18.2 g/cm³, ≥ 600 MPa yield strength, cyclic fatigue tested to AMS-T-21014 for aeroelastic flutter suppression.
- Materials
- Class 2 / Class 3 tungsten heavy alloy
- Features
- Exceptional fatigue life from refined grain structure, custom complex geometries, AMS-T-21014 compliance, high-volume continuous sintering
- Application
- Wingtip extensions, main spar root assemblies, aileron and flap flutter prevention.
Specifications
| Parameter | Value |
|---|---|
| Alloy System | Class 2 / Class 3 Heavy Alloy |
| Sintered Density | 17.5 – 18.2 g/cm³ |
| Yield Strength | ≥ 600 MPa |
| Fatigue Limit | High Cyclic Tested |
| Manufacturing Standard | AMS-T-21014 |
Frequently Asked Questions
What materials and process are used for Tungsten Alloy Aircraft Wing Spar Counterweight?
Tungsten Alloy Aircraft Wing Spar Counterweight is made from Class 2 / Class 3 tungsten heavy alloy and is formed by MIM/PM (metal injection molding / powder metallurgy) near-net-shape and sintered to a relative density of ≥ 98%, which keeps mechanical properties close to wrought material.
What are the key specifications of Tungsten Alloy Aircraft Wing Spar Counterweight?
Typical specifications: Alloy System: Class 2 / Class 3 Heavy Alloy; Sintered Density: 17.5 – 18.2 g/cm³; Yield Strength: ≥ 600 MPa. The full parameter list is in the specifications table on this page; custom requirements can be discussed against your drawing.
What is the MOQ and lead time for Tungsten Alloy Aircraft Wing Spar Counterweight?
MOQ is 1000 pcs. Mold lead time is about 20 days (mold fee typically RMB 20–40k depending on part geometry), and production lead time is about 7 days once the mold is validated; secondary processing adds 3–5 days.
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