What is the Composition of Inconel 945?
Inconel 945 is a high-performance nickel-based superalloy known for its exceptional high-temperature strength, oxidation resistance, and corrosion resistance. Widely used in aerospace, petrochemical, and industrial applications, understanding its composition is critical for engineers, material buyers, and industrial professionals. SASA ALLOY, a trusted nickel alloy supplier, offers high-quality Inconel 945 products including pipes, bars, sheets, and custom machined components, backed by full EN 10204 3.1 certification and material traceability.
Chemical Composition of Inconel 945
Inconel 945 is designed as a nickel-iron-chromium superalloy, offering enhanced creep and fatigue resistance at elevated temperatures. The typical chemical composition includes:
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 45–55 |
| Chromium (Cr) | 19–23 |
| Iron (Fe) | 17–21 |
| Molybdenum (Mo) | 2–3 |
| Aluminum (Al) | 1.4–1.8 |
| Titanium (Ti) | 1.0–1.5 |
| Cobalt (Co) | 3–5 |
| Copper (Cu) | ≤1.0 |
| Carbon (C) | ≤0.05 |
| Manganese (Mn) | ≤0.35 |
| Silicon (Si) | ≤0.35 |
| Phosphorus (P) | ≤0.015 |
| Sulfur (S) | ≤0.015 |
| Boron (B) | 0.007–0.015 |
Mechanical and Physical Properties
- Tensile Strength: 1100–1250 MPa at room temperature
- Yield Strength: 690–750 MPa
- Elongation: 20–25%
- Hardness: HRC 30–35
- Service Temperature: Up to 1038°C in continuous operation
- Density: 8.1 g/cm³
Industrial Applications of Inconel 945
- Aerospace Components: Jet engine turbine blades, combustion chambers, high-temperature fasteners
- Power Generation: Gas turbines, heat exchangers, boilers, nuclear power plant components
- Chemical Processing: High-temperature valves, reactor vessels, piping for aggressive media
- Oil & Gas Industry: High-temperature and corrosive environment pipework and fittings
Quality Assurance and Traceability
At SASA ALLOY, every Inconel 945 product is supplied with:
- Full EN 10204 3.1 certificate
- Material traceability with heat number tracking
- PMI testing and UT inspection for chemical and mechanical verification
- Compliance with ASTM B637, ASTM B444 standards
Conclusion
Understanding “What is the composition of Inconel 945?” helps industrial engineers and buyers select the correct nickel alloy for high-temperature and high-stress applications. SASA ALLOY provides a complete range of Inconel 945 products with quality assurance, traceability, and international shipping.
Call to Action
For high-quality Inconel 945 pipes, bars, sheets, and custom components, contact SASA ALLOY today. Our team can provide technical support, material certificates, and custom sizes tailored to your industrial project needs.
Post time: May-28-2026