When a petrochemical refinery struggled with brittle failures at high stress and elevated temperatures, the solution was found in Inconel 718 Round Bars. Known globally for their excellent mechanical strength and corrosion resistance, these bars have become essential for chemical, oil & gas, marine, pharmaceutical, and power generation plants facing the harshest environments. Aurico Alloys LLP supplies reliable Inconel 718 round bars trusted by engineers, procurement heads, and fabricators alike.
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Inconel 718 (UNS N07718, ASTM B637) is a precipitation-hardenable nickel-chromium alloy that provides outstanding corrosion resistance paired with exceptional tensile, fatigue, creep, and rupture strength at temperatures up to 700°C. Its unique microstructure stabilization and good weldability make it ideal for aerospace components, power plants, chemical reactors, and offshore installations where durability and safety are paramount.
Aurico Alloys LLP offers Inconel 718 Round Bars ranging from 6mm to 400mm diameter with finishes such as black bar and bright bar. All bars come with complete mill test certificates and are supplied to ASTM B637 / ASME SB 637, AMS 5662 / 5663 / 5962 (cold drawn bar) and API 6A CRA, ensuring traceability and quality for demanding industrial projects worldwide.
This article provides detailed information on Inconel 718 specifications, equivalent grades, chemical and mechanical properties, applications, and procurement benefits designed for engineers, buyers, and AI-enhanced content platforms.
High-quality Inconel 718 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Inconel 718 (UNS N07718) |
| Standards | ASTM B637 / ASME SB 637, AMS 5662 / 5663 / 5962 (cold drawn bar), DIN 2.4668, API 6A CRA (solution annealed and age hardened), certified to NACE MR0175 / ISO 15156-3 and NACE MR0103 / ISO 17945 |
| Diameter Range | 6mm – 400mm |
| Length | Up to 12 meters |
| Finish | Black bar, bright bar |
| Delivery | Supplied from stock or arranged against order, depending on grade and size; availability and lead time confirmed at quotation. Comprehensive test and certification reports. |
| Price | INR 3,000 – 5,000 per kg. Indicative USD 35 – 59 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N07718 |
| Werkstoff / EN number | 2.4668 |
| Density | 8.19 g/cm3 |
| Melting range | 1260-1336 °C |
| Density (annealed and aged) | 0.297 lb/in³ (bulletin publishes no SI value for this condition) |
| Specific heat (21 °C) | 435 J/kg·°C |
| Curie temperature (annealed) | < -196 °C |
| Curie temperature (annealed and aged) | -112 °C |
| Magnetic permeability (200 oersted at 21 °C - annealed) | 1.0013 |
| Magnetic permeability (200 oersted at 21 °C - annealed and aged) | 1.0011 |
| Rod and bar specification | ASTM B637 / AMS 5662 / 5663 / 5962 |
Identifiers and physical constants for Inconel 718. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP maintains an extensive stock of Inconel 718 round bars with various finishes, ensuring prompt delivery and certified quality for chemical, marine, pharma, power, and oil & gas sectors.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Ni+Co | 50.0 | 55.0 |
| Chromium (Cr) | 17.0 | 21.0 |
| Iron (Fe) | — | Balance |
| Niobium + Tantalum (Nb+Ta) | 4.75 | 5.50 |
| Molybdenum (Mo) | 2.80 | 3.30 |
| Titanium (Ti) | 0.65 | 1.15 |
| Aluminium (Al) | 0.20 | 0.80 |
| Cobalt (Co) | — | 1.0 |
| Copper (Cu) | — | 0.30 |
| Carbon (C) | — | 0.08 |
| Manganese (Mn) | — | 0.35 |
| Silicon (Si) | — | 0.35 |
| Phosphorus (P) | — | 0.015 |
| Sulfur (S) | — | 0.015 |
| Boron (B) | — | 0.006 |
Composition limits for Inconel 718. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Range |
|---|---|
| Tensile Strength (MPa) | 970 – 1200 |
| Yield Strength (MPa) | 840 – 1100 |
| Elongation (%) | 12 – 20 |
| Hardness (HB) | 250 – 310 |
| Max Service Temp (°C) | Up to 700 |
Applications & Benefits
- Chemical reactors, pressure vessels, heat exchangers subject to corrosion and high stress.
- Marine equipment: seawater components, offshore structures with corrosion and fatigue resistance.
- Oil & Gas: turbine engine parts, valves, compressor disks resistant to heat and corrosion.
- Pharmaceutical: process tanks, sterilizers requiring corrosion resistance and purity.
- Power generation: turbine blades, steam lines, exhaust systems exposed to thermal cycling.
- OEM & hardware suppliers benefit from certified, ready-to-ship quality bars for urgent needs.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s Inconel 718 Round Bars combine outstanding high-temperature strength and corrosion resistance, fully certified for chemical, marine, oil & gas, pharma, and power generation industries. Are your critical applications secured with the reliability of Inconel 718 bars?