INCONEL 718 (UNS N07718) Round Bar Export to Turkey | ASTM B637 Standard
INCONEL 718 is a precipitation-hardenable nickel-chromium superalloy containing significant amounts of iron, niobium (columbium), and molybdenum, along with lesser amounts of aluminum and titanium. Designated as UNS N07718 and 2.4668, this age-hardenable alloy is widely recognized for its exceptional high tensile strength, yield strength, and creep-rupture properties at elevated temperatures up to 1300°F (700°C), while maintaining excellent mechanical properties at cryogenic temperatures as low as -423°F (-253°C). INCONEL 718 offers superior strength compared to Inconel X-750 and better low-temperature mechanical properties than Nimonic 90.
ZYTC Alloy is pleased to announce the successful completion and delivery of a significant INCONEL 718 round bar order destined for Turkey. Manufactured to the stringent ASTM B637 standard, this shipment featured precision Ф38.1×1205mm and Ф35×1250mm INCONEL 718 round bars, delivered in the solution annealed and aged (solution + precipitation hardening) condition for optimal performance. This order exemplifies ZYTC Alloy's unwavering commitment to standardized, proceduralized, and professionalized manufacturing and inspection processes.
Chemical Composition of INCONEL 718 (UNS N07718)
The chemical composition of INCONEL 718 is precisely controlled to deliver its outstanding properties:
| Element | Weight % (Min) | Weight % (Max) |
|---|---|---|
| Nickel (Ni) | 50.00 | 55.00 |
| Chromium (Cr) | 17.00 | 21.00 |
| Iron (Fe) | Balance | Balance |
| Niobium/Columbium (Nb/Cb) | 4.75 | 5.50 |
| Molybdenum (Mo) | 2.80 | 3.30 |
| Titanium (Ti) | 0.65 | 1.15 |
| Aluminum (Al) | 0.20 | 0.80 |
| Cobalt (Co) | – | 1.00 |
| Carbon (C) | – | 0.08 |
| Manganese (Mn) | – | 0.35 |
| Silicon (Si) | – | 0.35 |
| Copper (Cu) | – | 0.30 |
| Phosphorus (P) | – | 0.015 |
| Sulfur (S) | – | 0.015 |
| Boron (B) | – | 0.006 |
Mechanical Properties of INCONEL 718
INCONEL 718 exhibits outstanding mechanical properties that make it the material of choice for the most demanding engineering applications:
| Property | AMS 5663 (Aged) |
|---|---|
| Tensile Strength (Ultimate) | 185 ksi (1275 MPa) min |
| Yield Strength (0.2% Offset) | 150 ksi (1035 MPa) min |
| Elongation (in 4D) | 12% min |
| Reduction of Area | 15% min |
| Hardness | ≥331 HB |
INCONEL 718 maintains its strength and toughness at temperatures up to 1300°F (705°C) and resists oxidation up to 1800°F (980°C). The alloy also demonstrates excellent fatigue resistance and creep-rupture strength across a broad temperature range.
Applications of INCONEL 718
Thanks to its exceptional combination of high strength, corrosion resistance, and thermal stability, INCONEL 718 is extensively used across multiple industries:
Aerospace & Defense: INCONEL 718 is a cornerstone material for jet engine components, turbine blades, rocket motors, spacecraft, fasteners, high-strength structural parts, and gas turbine discs.
Oil & Gas: INCONEL 718 is widely used in downhole tools, wellhead components, valves, logging tools, pump shafts, and subsurface safety valves exposed to high pressure, temperature, and corrosive environments.
Power Generation: INCONEL 718 is essential for gas turbine components, combustion sections, and nuclear reactor parts.
Chemical & Petrochemical Processing: INCONEL 718 is used in reactor vessels, heat exchangers, and piping systems handling corrosive media.
High-Performance Automotive: INCONEL 718 is found in turbocharger components, exhaust systems, and high-stress fasteners.
ZYTC Alloy‘s INCONEL 718 Product Capabilities
Beyond INCONEL 718 round bar, ZYTC Alloy is a comprehensive supplier of INCONEL 718 in various forms, including:
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INCONEL 718 Sheet and INCONEL 718 Strip
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INCONEL 718 Wire and INCONEL 718 Welding Wire
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INCONEL 718 Bar and INCONEL 718 Rod (Round, Hex, Square)
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INCONEL 718 Seamless Tube and INCONEL 718 Pipe
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INCONEL 718 Forgings
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Custom-fabricated INCONEL 718 parts to customer drawings
Quality Standards and Certifications
ZYTC Alloy manufactures all INCONEL 718 products in strict compliance with internationally recognized specifications:
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AMS 5596 – INCONEL 718 Sheet, Strip and Plate
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AMS 5597 – INCONEL 718 Sheet, Strip and Plate
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AMS 5589 – INCONEL 718 Seamless Tube
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AMS 5590 – INCONEL 718 Seamless Tube
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AMS 5662 – INCONEL 718 Bars, Forgings and Rings (Solution Annealed)
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AMS 5663 – INCONEL 718 Bars, Forgings and Rings (Solution + Aged)
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AMS 5664 – INCONEL 718 Bars, Forgings and Rings (Alternative Heat Treatment)
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AMS 5832 – INCONEL 718 Welding Wire
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ASTM B637 – INCONEL 718 Forgings and Bars
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ASTM B670 – INCONEL 718 Plate, Sheet and Strip
ZYTC Alloy strictly implements ASTM, EN, and AMS standards across all INCONEL 718 products, combining this dedication to quality with competitive pricing and a fast, reliable delivery cycle.
Why Choose ZYTC Alloy for INCONEL 718?
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Standardized production processes ensure consistency across every INCONEL 718 order
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Proceduralized quality control from material selection to final inspection
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Professionalized manufacturing and testing protocols
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Rigorous final inspection – only INCONEL 718 products passing comprehensive testing are released to customers
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Fast delivery and competitive pricing without compromising quality
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Comprehensive product range – all INCONEL 718 forms available
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Custom fabrication capabilities to customer drawings and specifications
Choose ZYTC Alloy for your next INCONEL 718 requirement – where standardization, quality, and performance converge.

















