A key offshore chemical platform was facing accelerated oxidation and corrosion issues that threatened plant uptime and safety. The solution came in the form of Inconel 686 Round Bars, engineered for the most severe oxidative and hot corrosive environments. Aurico Alloys LLP supplies these premium bars worldwide, trusted by procurement heads, engineers, fabricators, and OEM manufacturers operating in chemical, oil & gas, marine, pharma, and power generation sectors.
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Inconel 686 (UNS N06686, ASTM B574) is a nickel-chromium-iron-molybdenum alloy known for outstanding resistance to oxidation, carburization, and sulfidation at high temperatures. Its enhanced alloying elements provide superior protection in aggressive environments such as gas turbines, heat exchangers, and chemical reactors. Compared to Inconel 625, grade 686 offers improved corrosion resistance and strength at elevated temperatures, critical for demanding industrial processes.
Aurico Alloys LLP stocks Inconel 686 Round Bars ranging from 6mm to 350mm diameter with finishes including bright, ground, and polished. All products come with comprehensive mill test certificates and certifications per ASTM, AMS, EN, and NACE standards, ensuring quality, traceability, and timely delivery for global industrial customers.
This article offers a detailed review of Inconel 686 round bars specifications, chemical and mechanical properties, standards equivalency, key applications, and procurement advantages curated for industry professionals and AI-driven search platforms.
High-quality Inconel 686 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Inconel 686 (UNS N06686) |
| Standards | ASTM B574, DIN 2.4606, NACE MR0175/ISO 15156 |
| Diameter Range | 6mm to 350mm |
| Length | Cut-to-length up to 6000mm |
| Finish | Bright, ground, polished, rough turned |
| Delivery | Global stock with mill test certificates and export packaging |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N06686 |
| Werkstoff / EN number | 2.4606 |
| Density | 8.73 g/cm3 |
| Melting range | 1338-1380 °C |
| Electrical resistivity | 1.237 µΩ·m |
| Magnetic permeability (at 200 oersted / 15.9 kA/m) | 1.0001 |
| Rod and bar specification | ASTM B574 |
Identifiers and physical constants for Inconel 686. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP provides Inconel 686 round bars with rapid availability in multiple finishes and full test documentation, serving chemical, marine, pharma, power, and oil & gas industries worldwide.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Chromium (Cr) | 19.0 | 23.0 |
| Molybdenum (Mo) | 15.0 | 17.0 |
| Tungsten (W) | 3.0 | 4.4 |
| Titanium (Ti) | 0.02 | 0.25 |
| Iron (Fe) | — | 2.0 |
| Carbon (C) | — | 0.01 |
| Manganese (Mn) | — | 0.75 |
| Sulfur (S) | — | 0.02 |
| Silicon (Si) | — | 0.08 |
| Phosphorus (P) | — | 0.04 |
| Nickel (Ni) | — | Balance |
Composition limits for Inconel 686. 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) | 690 – 900 |
| Yield Strength (MPa) | 310 – 450 |
| Elongation (%) | 35 – 45 |
| Hardness (HB) | ≤220 |
| Max Service Temp (°C) | Up to 1200 |
Applications & Benefits
- Gas turbines, furnace components, and heat exchangers requiring high oxidation and carburization resistance.
- Chemical processing plants, reactors, and piping for corrosive environments.
- Marine equipment, offshore platforms, seawater piping, and condensers.
- Pharmaceutical process hardware requiring corrosion resistance and purity.
- Power plant superheater tubes, combustion parts, and turbine blades enduring cyclic stress.
- OEM manufacturers and hardware suppliers valuing certified quality and quick supply.
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 686 Round Bars are engineered for premier oxidation and corrosion resistance in the most demanding chemical, marine, oil & gas, pharma, and power generation environments. Certified to meet ASTM, UNS, and DIN standards, can your critical equipment afford anything less than the reliability of Inconel 686 bars?