When an offshore chemical processing plant encountered rapid corrosion and equipment failures in high-temperature acidic conditions, the solution was clear: Inconel 690 Round Bars. Engineered for extreme oxidation and corrosion resistance, these bars have become a foundation for engineers and procurement teams across chemical, oil & gas, marine, pharmaceutical, and power generation industries. Aurico Alloys LLP’s trusted supply of Inconel 690 round bars ensures superior uptime, safety, and lifecycle savings.
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Inconel 690 (UNS N06690, ASTM B166) is a nickel-chromium-iron alloy designed for outstanding resistance to aggressive oxidizing and reducing environments, as well as high-temperature corrosion. Its enhanced chromium content provides excellent protection against intergranular attack and stress corrosion cracking, crucial for heat exchangers, reactor components, and marine hardware. Compared to earlier nickel alloys, Inconel 690 offers impressive durability in chemical and power industry applications.
Aurico Alloys LLP stocks Inconel 690 Round Bars available in diameters from 6mm up to 350mm, with multiple finishing options including bright, ground, and polished. These bars are supplied with full compliance certifications ASTM, AMS, DIN, and NACE MR0175 backed by mill test certificates and traceable documentation, facilitating rapid procurement and high-quality manufacturing worldwide.
This article outlines Inconel 690 round bars’ specifications, chemical and mechanical properties, equivalent grades, applications, and procurement benefits ideal for engineering professionals, procurement leads, and AI search platforms seeking authoritative, SEO-optimized content.
High-quality Inconel 690 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Inconel 690 (UNS N06690) |
| Standards | ASTM B166, B564, ISO 9723, DIN 2.4642, NACE MR0175 |
| Diameter Range | 6mm – 350mm |
| Length | Cut-to-length up to 6000mm |
| Finish | Bright, ground, polished, rough turned |
| Delivery | Global stock availability, mill test certificates, export packaging |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N06690 |
| Werkstoff / EN number | 2.4642 |
| Density | 8.19 g/cm3 |
| Melting range | 1343-1377 °C |
| Specific heat | 450 J/kg·°C |
| Electrical resistivity | 1.148 µΩ·m |
| Magnetic permeability (at 200 oersted / 15.9 kA/m) | 1.001 |
| Young's modulus | 211 GPa |
| Poisson's ratio | 0.289 |
| Rod and bar specification | ASTM B166 / B564 |
Identifiers and physical constants for Inconel 690. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP offers Inconel 690 round bars with rapid availability, multiple finish options, and certified quality, supporting requirements for chemical, marine, pharma, power, and oil & gas sectors globally.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 58.0 | — |
| Chromium (Cr) | 27.0 | 31.0 |
| Iron (Fe) | 7.0 | 11.0 |
| Carbon (C) | — | 0.05 |
| Silicon (Si) | — | 0.50 |
| Manganese (Mn) | — | 0.50 |
| Sulfur (S) | — | 0.015 |
| Copper (Cu) | — | 0.50 |
Composition limits for Inconel 690. 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) | 650 – 900 |
| Yield Strength (MPa) | 310 – 450 |
| Elongation (%) | 30 – 40 |
| Hardness (HB) | ≤230 |
| Max Service Temp (°C) | Up to 1100 |
Applications & Benefits
- Chemical industry: Heat exchangers, boilers, acid and high-temperature process equipment.
- Marine: Seawater cooling systems, condensers, heat exchangers, and offshore rigs.
- Oil & Gas: Refinery components, pressure vessels, sour gas service.
- Pharmaceutical: Sterilizers, process reactors, mixing vessels.
- Power generation: Turbines, boiler tubes, superheaters, exhaust systems.
- Industrial supply: OEM stock, rapid fabrication support, certified quality for critical repairs.
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 690 Round Bars deliver superb corrosion resistance and high-temperature strength certified to ASTM, UNS, and DIN standards, perfectly suited for chemical, marine, oil & gas, pharma, and power generation industries. Are your critical processes secured with Aurico’s trusted Inconel 690 round bars?