Products Features
Excellent High-Temperature Strength and Creep Resistance
FSX-414 achieves outstanding tensile strength, yield strength, and creep resistance in the temperature range of 700-980°C through solid solution strengthening (tungsten) in the cobalt matrix and dispersion strengthening by carbides. At 870°C, its tensile strength remains above approximately 400 MPa, and its creep strength is superior to many iron-based and nickel-based high-temperature alloys. It is suitable for turbine blades and guide vanes that are subjected to long-term high-temperature stress.
Superior Oxidation and Thermal Corrosion Resistance
The high chromium content (approximately 29%) promotes the formation of a dense and stable Cr₂O₃ oxide film on the alloy surface, effectively preventing matrix oxidation in oxidizing atmospheres up to 1000°C. Additionally, the cobalt matrix exhibits good resistance to thermal corrosion media such as sulfur and vanadium, making it particularly suitable for gas turbine environments using sulfur-containing fuels. Its oxidation weight gain rate is significantly lower than that of conventional stainless steels and nickel-based alloys.
Good Thermal Fatigue and Microstructural Stability
During long-term high-temperature service, the carbide structure of FSX-414 remains stable, with minimal precipitation of harmful phases (such as σ phase). It possesses excellent microstructural stability and thermal fatigue resistance. Even under conditions of frequent temperature fluctuations, its mechanical and corrosion-resistant properties remain stable, making it suitable for gas turbine components subject to frequent start-ups and shutdowns.
Casting and Machining Characteristics
FSX-414 is typically formed using precision casting processes, making it suitable for manufacturing complex-shaped hollow blades and guide vanes. The alloy has poor weldability and welding repair is generally not recommended; if connection is required, specialized processes and strict heat treatment control must be employed. In terms of machining, limited cutting can be performed in the annealed condition, and final finishing is recommended to be done by grinding or electrical discharge machining (EDM).
Technical Specifications
Chemical Composition
|
Element |
Standard Requirements |
Notes |
|
Co |
Remaining quantity(52-55%) |
Matrix elements that provide high-temperature strength, thermal stability, and excellent thermal corrosion resistance |
|
Cr |
28.0 - 31.0% |
Form a dense Cr₂O₃ protective film, providing oxidation and thermal corrosion resistance, and is also a main component element of carbides |
|
Ni |
10.0 - 12.0% |
Stabilize the austenitic structure, improve toughness and castability |
|
W |
7.0 - 8.0% |
Provides significant solid solution strengthening to enhance high-temperature creep resistance |
|
C |
0.25 - 0.35% |
Forming M₇C₃ and M₆C type carbides with chromium and tungsten, it is the core source of high-temperature strength |
|
Fe |
≤ 2.0% |
Strict control to ensure purity and microstructural stability |
|
Si |
≤ 1.0% |
Deoxidizer |
|
Mn |
≤ 1.0% |
Deoxidizer, improve processing performance |
|
Mo |
≤ 0.5% |
Optional small additions to provide auxiliary solid solution strengthening |
|
B |
≤ 0.015% |
Minor additions to enhance grain boundary strength |
Physical Properties
|
Property |
Value/Range |
Test Conditions |
|
Density |
8.35 - 8.45 g/cm³ |
Room temperature (20°C) |
|
Melting Point |
1330 - 1390°C |
- |
|
Coefficient of Thermal Expansion (20-100°C) |
13.0 - 13.5 × 10⁻⁶ /K |
- |
|
Elastic modulus (Young's modulus) |
205 - 220 GPa |
Room temperature |
|
Thermal Conductivity (20°C) |
14.0 - 15.0 W/(m·K) |
- |
|
Resistivity |
0.90 - 1.00 μΩ·m |
- |
|
Magnetism |
Non-magnetic (weakly magnetic) |
Cobalt-based alloys are typically non-magnetic or weakly magnetic at room temperature |
Mechanical Properties (Precision Casting, Typical Values)
|
Property |
Typical Value |
Reference standard |
|
Room temperature tensile strength |
700 - 850 MPa |
- |
|
Room Temperature Yield Strength (0.2% Offset) |
450 - 550 MPa |
- |
|
Room temperature elongation |
5 - 10% |
- |
|
Hardness (Cast Condition) |
90 - 100 HRB(≈ 200-250 HB) |
- |
|
Tensile strength at 870°C |
400 - 480 MPa |
- |
|
Sustained strength (100h) |
100 - 120 MPa |
- |
High-temperature performance
FSX-414 exhibits excellent strength retention at high temperatures. Below are typical reference values:
|
Temperature |
Tensile Strength (Typical Value) |
Sustained Strength (100h, Typical Value) |
|
Room Temperature |
700-850 MPa |
- |
|
540°C |
650 MPa |
- |
|
730°C |
550 MPa |
200 MPa |
|
870°C |
450 MPa |
110 MPa |
|
980°C |
280 MPa |
- |
Antioxidant Performance:
In oxidizing atmospheres up to 1000°C, FSX-414 forms a dense and well-adhered Cr₂O₃ oxide film on its surface, resulting in a significantly lower oxidation weight gain rate compared to conventional stainless steels. In environments involving the combustion of sulfur-containing fuels, its thermal corrosion resistance is markedly superior to many iron-based and nickel-based high-temperature alloys.
Microstructural Stability:
During long-term exposure at temperatures between 800-980°C, the carbide structure of FSX-414 remains stable, with a low tendency for the precipitation of harmful phases (such as μ-phase and Laves phase). This ensures its mechanical properties and toughness during prolonged high-temperature service.
Applicable Media:
1. High-temperature air and combustion flue gases (containing sulfur and vanadium)
2. High-temperature oxidizing atmospheres
3. Thermal corrosion environments (containing Na₂SO₄, V₂O₅, etc.)
4. High-temperature gas streams (flow environment in gas turbines)
FSX-414 is primarily used in high-temperature gaseous medium environments and is not suitable for aqueous corrosion environments.
Remark: FSX-414 has precision castings as its core product, with profiles such as plates, tubes, and bars as customized products. Inventory is limited, and advance production scheduling is required.
FSX-414 is designed for extreme high-temperature, oxidation, and thermal corrosion environments and is recommended for the following fields:
Application Fields
-
Gas Turbines: Hot-end components such as guide vanes (stator blades), turbine seal rings, combustion chamber liners, transition pieces, nozzle baffles, and turbine outer rings, utilizing its high-temperature strength, oxidation resistance, and thermal corrosion resistance below 980°C.
-
Aerospace Engines: High-pressure turbine guide vanes, combustion chamber components, and afterburner parts, meeting the requirements of aerospace engines for long service life and high reliability of high-temperature materials.
-
Industrial High-Temperature Valves: High-temperature steam valves, gas shut-off valves, and petrochemical heater valve sealing surfaces, withstanding high-temperature oxidation and thermal cycling.
-
Heat Treatment Fixtures: High-temperature baskets, fixtures, furnace rolls, and radiation tubes, maintaining dimensional stability and oxidation resistance under continuous high temperatures.
-
Petrochemical Industry: Support components for ethylene cracking furnace tubes, high-temperature reactor internals, and high-temperature wear-resistant parts in catalytic cracking units.
-
Power Generation: High-temperature fasteners for steam turbines, boiler burner nozzles, and high-temperature corrosion-resistant components in waste-to-energy power plants.
-
Automotive Engines: High-performance turbine housings for turbochargers and exhaust manifold gaskets, withstanding exhaust high temperatures and thermal cycling.
-
Glass and Ceramic Industries: Glass forming molds and hot pressing molds, due to their excellent corrosion resistance and thermal fatigue resistance to molten glass.
Delivery and Customization
We offer flexible and reliable supply chain solutions to ensure you receive FSX-414 materials that perfectly match your project requirements.
|
Form |
 Precision Castings
|
 Bar/Rod
|
 Sheets/Plates (Limited Supply)
|
 Wire (for welding)
|
|---|---|---|---|---|
|
Conventional Range |
Customize according to the drawings |
Diameter Φ6-200mm |
Thickness: 0.5 - 50 mm |
Diameter: 1.2-4.0mm |
|
Customization Capability |
Complex-shaped castings such as hollow/solid guide vanes, turbine seals, and combustion chamber components |
Forged or rolled bars for machined parts |
Used for stampings, gaskets, etc. |
For welding the same alloy (requiring a dedicated process) |
Note: The main supply form of FSX-414 is precision castings, with relatively limited availability of bars and plates.
Why Choose Us? - Reliable Engineering Technology. Dependable Delivery.
We are not just a supplier, but a trusted materials partner for you in China.
Vertically Integrated Production
Own 20,000㎡ facility with 10+ automated lines (8,000+ tons/year). In-house tooling & die center enables rapid customization and effective cost control - no middleman markup.
Strict Quality Control at Every Stage
Full traceability across key QC checkpoints throughout production. 100% compliant with ASTM/ASME, EN, and GB standards. Material test reports available with every shipment.
Reliable Delivery & Export Packaging
10+ years exporting to Europe, North America, Southeast Asia & Middle East with waterproof and anti-rust protection, combined with flexible shipping options ensures safe and on-time arrival.
Sample Validation Before Mass Production
We provide free samples for quality verification, allowing you to place bulk orders only after approval. We ensure consistency from sample to mass production by accurate dimensional measurement and transparent manufacturing.
FAQ
Q: What are the main advantages of FSX-414?
Q: What heat treatment is required for FSX-414?
Q: What is the maximum service temperature?
Q: What is the difference between FSX-414 and Hastelloy X?
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