In the precision casting industry, your profits depend on your scrap rate. Even a single non-metallic inclusion or a "casting failure" due to poor metal flowability can ruin a high-value turbine impeller or aerospace blade.
Gnee Alloy, a precision casting raw material supplier with 18 years of experience, offers Inconel 713C cast bars melted using the Vacuum Inhalation Melting (VIM) process, designed to address these challenges faced by foundries. Our mission is simple: to help you achieve zero inclusions and maximize foundry productivity.
Contact our professionals to recommend the right alloy for your project
VIM Melting Inconel 713C Cast Round Bar Performance Guide
VIM Melting Inconel 713C Cast Round Bar Performance Guide
Vacuum induction melting (VIM) of Inconel 713C (UNS NO7713) cast round bars is a premium manufacturing process designed to produce high-purity nickel-chromium-based superalloys with excellent high-temperature strength, creep resistance, and thermal fatigue resistance, primarily used in gas turbine engines. VIM allows for effective control of the content of active elements (Al, Ti), ensuring the alloy maintains high performance at temperatures up to 1700°F (927°C).
What is the melting point of Inconel 713?
Differential scanning calorimetry (DTA) results show that at a heating rate of 10°C/min, the initial melting point occurs at 1270°C, and the γ phase forms at 1335°C during cooling. Therefore, the solidification temperature range of Inconel 713C is approximately 65°C.
1. Inconel 713C Cast Round Bar Technical Specifications
| Parameter | Description |
|---|---|
| Material | Inconel 713C (UNS N07713) |
| Material Type | Cast Nickel-based Superalloy |
| Product Form | Cast Round Bar (directly shaped by investment casting) |
2. Chemical composition of Inconel 713C round bars (wt%)
| Element | Content (%) | Function |
|---|---|---|
| Nickel (Ni) | Balance (~70-75) | Matrix element; high-temperature stability |
| Chromium (Cr) | 11.0 – 14.0 | Oxidation resistance |
| Aluminum (Al) | 5.5 – 6.5 | Primary γ′ former – Ni₃(Al,Ti) |
| Molybdenum (Mo) | 3.5 – 5.0 | Solid-solution strengthening; creep resistance |
| Niobium (Nb) | 1.5 – 2.5 | Supplementary strengthening |
| Titanium (Ti) | 0.4 – 1.0 | γ′ strengthening |
| Iron (Fe) | ≤ 2.0 | Residual element |
| Cobalt (Co) | ≤ 1.0 | Residual element |
| Carbon (C) | 0.05 – 0.15 | Carbide former; grain boundary strength |
| Boron (B) | 0.005 – 0.015 | Grain boundary strengthener |
| Zirconium (Zr) | 0.05 – 0.15 | Grain boundary strengthener |
| Manganese (Mn) | ≤ 0.20 | Deoxidizer |
| Silicon (Si) | ≤ 0.50 | Deoxidizer |
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3. Physical properties of Inconel 713C round bars
| Property | Value | Engineering Significance |
|---|---|---|
| Density | 7.91 g/cm³ (0.286 lb/in³) | Weight calculation |
| Melting Range | 1260 – 1315°C | Casting temperature range |
| Thermal Conductivity (20°C) | 11.2 W/m·K | Heat dissipation |
| CTE (20-100°C) | 12.0 × 10⁻⁶/°C | Fitting compatibility |
| Modulus of Elasticity (20°C) | ~205 GPa | Stiffness |
| Modulus of Elasticity (800°C) | ~160 GPa | Hot stiffness |
| Magnetic Properties | Non-magnetic | - |
4. Inconel 713C Casting Bar Size Capability
| Parameter | Typical Range | Tolerance |
|---|---|---|
| Diameter | 10 – 100 mm | ±0.2 – ±0.5 mm |
| Length | 50 – 300 mm | ±0.5 – ±1.0 mm |
| Minimum Diameter | 8 – 10 mm | - |
| Dimensional Tolerance Grade | CT7 – CT9 | ISO 8062 |
| Surface Roughness (As-Cast) | Ra 3.2 – 6.3 µm | - |
| Surface Roughness (After Machining) | Ra 0.8 – 1.6 µm | Requires subsequent machining |
Typical castable diameter:
| Diameter (mm) | Diameter (in) | Maximum Length (mm) | Typical Application |
|---|---|---|---|
| 10 – 20 | 0.375 – 0.750 | 150 | Small castings |
| 20 – 40 | 0.750 – 1.500 | 250 | Medium castings |
| 40 – 60 | 1.500 – 2.250 | 300 | Larger castings |
| 60 – 100 | 2.250 – 4.000 | 300 | Large castings |
Contact us to customize Inconel 713C products to fit your project dimensions
5. Key Performance Characteristics (VIM Cast Inconel 713C)
High Temperature Strength: Exhibits excellent fracture strength at high temperatures, particularly suitable for turbine blades and guide vanes.
Creep Resistance: Exhibits excellent stability under prolonged, high-load, and high-temperature conditions.
Thermal Fatigue Resistance: Offers high resistance to damage caused by rapid temperature changes.
Corrosion Resistance: Exhibits good oxidation resistance, typically forming a stable protective oxide layer.
Vacuum Ion Melting (VIM) Process
6. Inconel 713C Vacuum Ion Melting (VIM) Process Parameters
Melting Atmosphere: Vacuum level typically reaches ~10⁻³ Torr (up to 10⁻² mbar) to remove dissolved gases (oxygen, nitrogen).
Melting Temperature: 1300-1750°C.
Solidation Temperature Range: Initial melting temperature is approximately 1270°C, γ phase forms at 1335°C, therefore the solidification temperature range is narrow, approximately 65°C.
Contamination Control: The VIM process limits oxygen content to below 20 ppm, nitrogen content to below 10 ppm, and active element content to ±0.05-0.12%.
7. Typical applications of Inconel 713C cast round bars
| Application | Description |
|---|---|
| Cast turbine blades | Gas turbine high-temperature components |
| Cast guide vanes | Gas turbine stator components |
| Cast nozzle rings | High-temperature gas path |
| Cast turbocharger wheels | Automotive/marine turbochargers |
| Test cast specimens | Material property testing |
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
Gnee Steel inconel 713C 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 713C Alloy Product Packing
Contact us for the latest export price quote for 713C Alloy
FAQ
Q: Why should we switch to your VIM-melted bars for our turbocharger wheels?
A: Many foundries struggle with surface "pockmarks" and internal inclusions. Our VIM-melted bars reach a level of purity that significantly reduces these defects. Switching to a cleaner feedstock is the fastest way to improve your bottom-line profit.
Q: Do you provide chemical analysis for trace elements?
A: Yes. Every heat comes with a full MTC 3.1 certified report, including detailed ppm levels for Al, Ti, and harmful trace elements like Pb and Bi.
Q: What is the typical lead time for a bulk order?
A: We maintain a strategic inventory of standard Inconel 713C casting round bars. Standard sizes can often be shipped within 2 weeks. For custom requirements, please consult our sales team.
