In the harsh environment of the hot end of a gas turbine, components must withstand temperatures up to 1800°F (982°C) while rotating at extremely high speeds. For the production of first and second stage turbine blades, Inconel 713C (UNS N07713) remains the industry's most trusted precipitation-hardening superalloy.
Gnee Alloy, a professional nickel alloy exporter, provides aerospace-grade purity master alloys to ensure your precision-cast blades meet the stringent safety and performance standards of the modern aerospace and power generation industries.
Contact our professionals to recommend the right alloy for your project
Inconel 713C UNS N07713 Alloy Rods for Gas Turbine Blades：Usage Guide
Inconel 713C UNS N07713 Alloy Rods for Gas Turbine Blades：Usage Guide
Inconel 713C (UNS N07713) is a nickel-chromium cast high-temperature alloy bar stock with excellent creep rupture strength, thermal fatigue resistance, and oxidation resistance, making it particularly suitable for temperatures up to 1700-1800°F (925-980°C). It is widely used in high-temperature components of gas turbines, especially jet engine blades, guide vanes, and turbocharger impellers.
What is Inconel 713C?
Inconel 713C is a nickel-chromium casting alloy that exhibits excellent fracture strength at 1700°F (927°C), while also possessing superior resistance to thermal fatigue and good casting properties. This datasheet provides information on its composition, physical properties, hardness, tensile properties, and creep and fatigue properties.
1. Inconel 713C Alloy Rod Technical Specifications
| Attribute | Industry Requirement (AMS 5391) | Our Aerospace Grade Standard |
| Chromium (Cr) | 12.0 - 14.0% | Optimized for Hot Corrosion Resistance |
| Aluminum (Al) | 5.5 - 6.5% | Precise Control for
γ′γ′ Stability |
| Melting Method | Vacuum Induction Melting (VIM) | Triple-Refined VIM |
| Trace Elements | ppb level control | < 1ppm (Pb, Bi, Te) |
| Gas Content | O, N < 20ppm | O, N < 10ppm |
2. Inconel 713C Alloy Rod Chemical Composition (wt.%)
| Element | Content (AMS 5391) |
|---|---|
| Chromium (Cr) | 12.00 – 14.00 |
| Molybdenum (Mo) | 3.80 – 5.20 |
| Niobium + Tantalum (Nb+Ta) | 1.80 – 2.80 |
| Aluminum (Al) | 5.50 – 6.50 |
| Titanium (Ti) | 0.50 – 1.00 |
| Carbon (C) | 0.08 – 0.20 |
| Boron (B) | 0.005 – 0.015 |
| Zirconium (Zr) | 0.05 – 0.15 |
| Silicon (Si) | ≤ 0.50 |
| Manganese (Mn) | ≤ 0.25 |
| Iron (Fe) | ≤ 2.50 |
| Copper (Cu) | ≤ 0.50 |
| Nickel (Ni) | Balance |
3. Inconel 713C Alloy Rod Product Properties (Physical & Mechanical)
| Property | Value |
|---|---|
| Density | 7.91 g/cm³ |
| Melting Range | 1260 – 1288 °C |
| Thermal Expansion Coefficient | 5.92 – 9.48 ×10⁻⁶ /°F (70–2000°F) |
| Thermal Conductivity | 146 – 334 BTU·in/hr·ft²·°F |
| Tensile Strength | ≥ 760 MPa (110 ksi) |
| Yield Strength (0.2%) | ≥ 690 MPa (100 ksi) |
| Elongation | ≥ 3% |
| Hardness | HRC 30 – 42 |
| Creep Rupture Strength (980°C / 30h) | 152 MPa |
| Max Service Temperature | ≤ 900 °C |
Click to download the Inconel 713C alloy PDF file now
4. Usage in inconel 713C Gas Turbine Blades (Processing)
Casting: Inconel 713C is primarily a cast alloy and is not typically forged. Vacuum investment casting is the preferred method for producing high-strength turbine components.
Heat Treatment: Although Inconel 713C is generally used in the "cast" state, heat treatment can optimize its properties.
Solution Treatment: Hold at 2150°F (1175°C) for 2 hours, then air cool.
Stabilization Treatment: Hold at 1700°F (925°C) for 16 hours, then air cool to restore its ductility at intermediate temperatures.
Machining: This alloy is difficult to machine due to its high work hardening rate.
Tools: Use cemented carbide tungsten-cobalt or tungsten-tantalum-cobalt tools.
Coolant: Chlorinated or sulfided fatty mineral oils are recommended.
Process: High-pressure coolants are effective for finishing turbine blade cooling holes.
Contact us to customize Inconel 713C products to fit your project dimensions
5. Inconel 713C Alloy Bar Applications
Our Inconel 713C alloy bars are widely used in:
Gas Turbine Blades：Primary material for components subjected to extreme temperatures and stresses.
Turbine Blades and Guide Components：For airflow control within turbine systems.
Aerospace Engine Components：High-temperature components suitable for aircraft engines.
Industrial Gas Turbines：Applications in the power generation and oil and gas industries.
Heat-Resistant Structural Components：For environments where conventional alloys fail.
6. Inconel 713C Summary Table
| Feature | Recommendation |
|---|---|
| Primary Application | First-stage turbine blades, turbine vanes, turbochargers |
| Temp Resistance | Up to 1800°F (980°C) |
| Manufacturing Method | Vacuum Investment Casting (Equiaxed) |
| Heat Treatment | 2150°F Sol + 1700°F Stab |
| Machining Difficulty | High (requires rigid setup / sharp tools) |
7. Advantages of Choosing Gnee Alloy Inconel 713C Bars
As a professional supplier, Gnee Alloy understands that your profitability depends on casting success rates.
✅️Stable Flowability: Our raw materials, produced using vacuum induction melting (VIM) technology, exhibit stable melt flowability, ensuring perfect filling of even the most complex cooling channels in modern blade designs.
✅️AMS 5391 Compliance: Every bar we deliver fully complies with AMS 5391 and GE/P&W specifications, ensuring your blades pass FPI and X-ray inspections with minimal scrap rates.
✅️Competitive Advantage: We invite you to experience our superior quality. Our technical sales team will provide comparative Requests of Quotation (RFQs) to demonstrate the advantages of our factory-direct pricing and superior purity levels compared to other global Tier 1 suppliers.
Gnee Steel 713C Alloy Certificate
📦 Packaging and Shipping
All Nickel Based Alloy products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Steel inconel 713C Product Packing
Contact us for the latest export price quote for 713C Alloy
FAQ
Q: Why is 713C preferred over 718 for turbine blades?
A: Inconel 718 is a wrought alloy that loses structural integrity above 1200°F. For the gas turbine hot-end, where temperatures exceed 1500°F, the Gamma-prime strengthening of cast Inconel 713C is essential for resisting creep and oxidation.
Q: Can you provide customized bar diameters for our induction furnace?
A: Yes. We offer standard Φ75mm and Φ80mm sticks, as well as custom-cut lengths to fit your specific vacuum investment casting crucible, ensuring maximum melting efficiency.
Q: How do you handle shipping for high-value aerospace alloys?
A: We utilize a global logistics network with full insurance and MTC 3.1 traceability. Every shipment is protected with high-strength packaging to prevent surface contamination during transit.
