Inconel 713C Technical Reference Guide
Inconel 713C Technical Reference Guide
Inconel 713C is a precipitation-hardening nickel-chromium casting superalloy designed for high-temperature strength, excellent thermal fatigue properties, and outstanding creep rupture strength up to 1800°F (980°C). Due to its ability to maintain structural integrity even in extreme environments, it is widely used in aerospace and industrial gas turbine applications, particularly for manufacturing turbine blades and guide vanes.
What is the composition of 713 alloy?
713 is a cast aluminum alloy whose composition includes 0.25% silicon, 0.35% chromium, 0.15% nickel, 1.1% iron, 0.4% to 1% copper, 0.2% to 0.5% magnesium, 0.25% titanium, 7% to 8% zinc, and 0.6% manganese. 713 is commonly used in the manufacture of components requiring high strength and ductility in various industrial applications.
1. Material Overview of Alloy 713
| Parameter | Description |
|---|---|
| Material | Inconel 713C (Cast Nickel-based Superalloy) |
| UNS Number | UNS N07713 |
| Chinese Equivalent | K413 |
| Material Type | Cast Alloy (Investment Casting Only) |
| Strengthening Mechanism | γ′ precipitation (Ni₃(Al,Ti)) |
| Product Form | Investment castings only (NOT available as wrought bar) |
| Typical Applications | Cast turbine blades, guide vanes, nozzle rings, turbocharger wheels, high-temperature investment castings |
| Maximum Service Temperature | ~950°C (1742°F) |
2. inconel 713C Alloy Chemical Composition (Wt%)
| Element | Content (%) | Standard Requirement | Function |
|---|---|---|---|
| Nickel (Ni) | Balance (~70-75) | Balance | Matrix element; provides high-temperature stability |
| Chromium (Cr) | 11.0 – 14.0 | 11.0 – 14.0 | Oxidation and corrosion resistance |
| Aluminum (Al) | 5.5 – 6.5 | 5.5 – 6.5 | Primary γ′ former – forms Ni₃(Al,Ti) |
| Molybdenum (Mo) | 3.5 – 5.0 | 3.5 – 5.0 | Solid-solution strengthening; creep resistance |
| Niobium (Nb) | 1.5 – 2.5 | 1.5 – 2.5 | Supplementary strengthening |
| Titanium (Ti) | 0.4 – 1.0 | 0.4 – 1.0 | γ′ strengthening (Ni₃(Al,Ti)) |
| Iron (Fe) | ≤ 2.0 | ≤ 2.0 | Residual element |
| Cobalt (Co) | ≤ 1.0 | ≤ 1.0 | Residual element |
| Carbon (C) | 0.05 – 0.15 | 0.05 – 0.15 | Carbide former; grain boundary strength |
| Boron (B) | 0.005 – 0.015 | 0.005 – 0.015 | Grain boundary strengthener |
| Zirconium (Zr) | 0.05 – 0.15 | 0.05 – 0.15 | Grain boundary strengthener |
| Manganese (Mn) | ≤ 0.20 | ≤ 0.20 | Deoxidizer |
| Silicon (Si) | ≤ 0.50 | ≤ 0.50 | Deoxidizer |
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3. Inconel 713C alloy room temperature mechanical properties
| Property | Typical Value | Test Standard |
|---|---|---|
| Tensile Strength, Ultimate | ~830 – 950 MPa (120-138 ksi) | ASTM E8 / ASTM E21 |
| Tensile Strength, Yield (0.2% Offset) | ~650 – 760 MPa (94-110 ksi) | ASTM E8 / ASTM E21 |
| Elongation at Break | 2 – 5% (low ductility) | ASTM E8 / ASTM E21 |
| Reduction of Area | 2 – 5% | ASTM E8 |
| Hardness (Rockwell C) | 35 – 40 HRC | ASTM E18 |
| Hardness (Brinell) | 330 – 380 HBW | ASTM E10 |
| Modulus of Elasticity | ~205 GPa (29.7 × 10⁶ psi) | ASTM E111 |
| Poisson's Ratio | 0.30 – 0.31 | – |
| Density | 7.91 g/cm³ | – |
4. High-temperature mechanical properties of Inconel 713C alloy
| Temperature (°C) | Temperature (°F) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| 20 (Room Temp) | 68 | 830 – 950 | 650 – 760 | 2 – 5 |
| 300 | 572 | ~850 | ~700 | ~4 |
| 400 | 752 | ~840 | ~690 | ~4 |
| 500 | 932 | ~830 | ~680 | ~5 |
| 600 | 1112 | ~810 | ~660 | ~6 |
| 650 | 1202 | ~790 | ~640 | ~6 |
| 700 | 1292 | ~770 | ~600 | ~7 |
| 750 | 1382 | ~730 | ~560 | ~8 |
| 800 | 1472 | ~680 | ~500 | ~8 |
| 850 | 1562 | ~600 | ~450 | ~9 |
| 900 | 1652 | ~500 | ~400 | ~10 |
| 950 | 1742 | ~400 | ~350 | ~10 |
| 1000 | 1832 | ~300 | ~250 | ~12 |
5. Physical properties of Inconel 713C alloy
| Property | Value | Significance |
|---|---|---|
| Density | 7.91 g/cm³ (0.286 lb/in³) | Weight calculation |
| Melting Range | 1260 – 1315°C (2300-2400°F) | Casting temperature range |
| Thermal Conductivity (20°C) | 11.2 W/m·K | Heat dissipation |
| Thermal Conductivity (500°C) | ~15.0 W/m·K | High-temperature performance |
| Coefficient of Thermal Expansion (20-100°C) | 12.0 × 10⁻⁶/°C | Fitting compatibility |
| Coefficient of Thermal Expansion (20-800°C) | ~14.0 × 10⁻⁶/°C | High-temperature design |
| Specific Heat (20°C) | 450 J/kg·K | Thermal capacity |
| Specific Heat (800°C) | ~550 J/kg·K | High-temperature thermal capacity |
| Modulus of Elasticity (20°C) | ~205 GPa (29.7 × 10⁶ psi) | Stiffness |
| Modulus of Elasticity (800°C) | ~160 GPa (23.2 × 10⁶ psi) | Hot stiffness |
| Electrical Resistivity | 1.30 µΩ·m | – |
| Magnetic Properties | Non-magnetic | – |
6. Comparison of Inconel 713C alloy with other cast superalloys
| Property | Inconel 713C | IN-100 | Mar-M-247 | CMSX-4 (Single Crystal) |
|---|---|---|---|---|
| Type | Equiaxed Cast | Equiaxed Cast | Equiaxed Cast | Single Crystal |
| Max Temp | ~950°C | ~1000°C | ~1050°C | ~1100°C |
| UTS (RT) | 830-950 MPa | ~900 MPa | ~900 MPa | ~950 MPa |
| YS (RT) | 650-760 MPa | ~800 MPa | ~800 MPa | ~900 MPa |
| Elongation | 2-5% | 2-5% | 2-5% | 2-5% |
| Density | 7.91 | 7.89 | 8.05 | 8.10 |
| Cost | High | Very High | Very High | Extremely High |
Contact us for recommendations of professional and high-quality casting alloys
7. Heat treatment of Inconel 713C alloy castings
| Step | Treatment | Temperature | Time | Cooling | Purpose |
|---|---|---|---|---|---|
| 1. Solution Treatment | Partial solution | ~1120°C | 4-8 hours | Air cool | Dissolve carbides |
| 2. Aging | Precipitation | ~950°C | 4-16 hours | Air cool | Coarsen γ′ |
| 3. Secondary Aging | Optional | ~870°C | 4-8 hours | Air cool | Stabilize γ′ |
Contact us to customize Inconel 713C products to fit your project dimensions
8. Typical casting applications of Inconel 713C alloy
| Industry | Application | Operating Temp | Key Requirements |
|---|---|---|---|
| Aerospace | Turbine blades, guide vanes | 800-950°C | Creep strength, thermal fatigue |
| Aerospace | Nozzle rings, diffuser casings | 700-900°C | High-temperature strength |
| Industrial Gas Turbines | Cast turbine blades | 800-950°C | Creep resistance |
| Automotive | Turbocharger wheels | 700-900°C | High-temperature strength |
| Power Generation | Small turbine components | 700-900°C | Thermal stability |
| Rocket Engines | Cast components | 800-1000°C | High-temperature capability |
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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 Product Packing
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FAQ
Q: Can I get Inconel 713C in a "pipe" form for a chemical reactor?
A: Standard 713C pipes do not exist because the material is too hard to roll. If you need a hollow shape for high-stress heat, it must be cast-to-size. If the stress is low, Inconel 600 pipes are the standard and much more cost-effective choice.
Q: Which alloy is better for resistance to "Green Rot"?
A: Both are excellent, but Inconel 600 is specifically designed for superior resistance to oxidation and carbonization in furnace atmospheres.
Q: How do I request a Comparative RFQ?
A: Simply click our inquiry button and provide your operating temperature, mechanical load, and preferred form. Our technical sales team will respond within 24 hours with a side-by-side price and performance comparison.
