321Stainless Sheets 1/4in, AMS 5513, High Strength, Aerospace
Structural Parts
321 stainless steel sheet (1/4in / 6.35mm thickness) is a titanium-stabilized austenitic alloy engineered for
high-strength, high-temperature aerospace applications. Compliant
with AMS 5513, this sheet offers exceptional resistance to oxidation, creep, and
intergranular corrosion, making it ideal for critical structural
components in aircraft and spacecraft. The addition of titanium
(≥5× carbon content) prevents carbide precipitation during welding
or prolonged exposure to 425–860°C, ensuring long-term durability
in jet engines, exhaust systems, and airframe structures. Its
superior mechanical properties and AMS certification guarantee
compliance with stringent aerospace safety and performance
standards.
2. Detailed Specifications
| Parameter | Details |
|---|
| Material | 321 Stainless Steel (AMS 5513 / UNS S32100) |
| Element Composition | Cr: 17–19%, Ni: 9–12%, Ti: 5×C min (≥0.50%), C: ≤0.08%, Mn: ≤2%,
Si: ≤1%, P: ≤0.045%, S: ≤0.03% |
| Thickness | 1/4in (6.35mm) ±0.1mm tolerance |
| Dimensions | Standard: 48in x 120in (1219mm x 3048mm); Customizable up to 60in x
240in |
| Surface Finish | Cold-Rolled, Annealed, and Pickled (AMS 5513 compliant) |
| Certifications | AMS 5513, ASTM A240, ASME SB-168, NADCAP (Aerospace) |
| Mechanical Properties | Tensile Strength: ≥515 MPa
Yield Strength: ≥205 MPa
Elongation: ≥40%
Hardness: ≤90 HRB |
| Applications | Aircraft engine mounts, exhaust ducts, wing ribs, satellite
propulsion systems |
3. Advantages of Importing Our Product
- Aerospace-Grade Quality: Full AMS 5513 compliance with batch-specific test reports and
NADCAP-accredited production.
- High-Temperature Stability: Retains strength up to 900°C, outperforming 304/316 grades in
thermal cycling.
- Cost Efficiency: 25% lower pricing than U.S./EU suppliers, with MOQs starting at
500kg.
- Custom Fabrication: Precision waterjet cutting, CNC machining, and stress-relief heat
treatment services.
- Fast Logistics: 12–18-day lead time via air/sea freight from Shanghai/Chicago
hubs, including ITAR-free documentation.
4. Key Applications
- Aerospace Structures: Engine nacelles, turbine shroud rings, and fuselage frames
requiring creep resistance.
- Exhaust Systems: High-temperature ducting and afterburner components in military
and commercial jets.
- Spacecraft Components: Heat shields, rocket engine mounts, and satellite fuel tanks.
- Industrial Gas Turbines: Combustion chamber liners and exhaust manifolds for power
generation.
Engineered for mission-critical aerospace applications, these AMS
5513-certified 321 stainless steel sheets deliver unmatched
strength, reliability, and compliance for OEMs and Tier 1 suppliers
worldwide.
Our Services
1.Custom made Products
If you have your own design , we can produce according to your
specification and drawing
2.Quantity Guarantee
Wire diameter,Mesh hole ,Dimension and clips will be Guaranteed
3.Reasonable price
After clients receive the quotation , we will show you rationality
of the price
4.Order
There is no big orders and small orders , welcome to place orders
to us
5.Design
Customers’ design is acceptable
Operation philosophy:
The same product than the quality
The same quality than price
The same price tan service
The same service than credibility
