Inconel 686 Sheets | Ultra-Premium Corrosion & Acid Resistance for Tough Process Environments
In refineries handling mixed acids or marine operations facing relentless chloride attack, equipment failure can quickly escalate to massive losses. The adoption of Inconel 686 Sheets marked a new era in reliability empowering engineers and procurement heads in chemical processing, oil & gas, marine, pharmaceutical, and power plants to specify a product that resists damage where even other high-nickel alloys fall short. Aurico Alloys LLP brings best-in-class, certified Inconel 686 Sheets to mission-critical industries that demand proven performance.
Table of Contents:
Why Inconel 686 Sheets Stand Apart
Inconel 686 (UNS N06686, ASTM B575, DIN 2.4606) is a single-phase, austenitic Ni-Cr-Mo-W alloy offering outstanding general, pitting, and crevice corrosion resistance in a wide set of aggressive industrial environments, including hot acid chlorides and mixed halides. With exceptional mechanical strength (tensile 730–850 MPa, yield 360–420 MPa, elongation 55–70%) it performs under stress and temperature extremes that defeat ordinary alloy solutions.
Tungsten and molybdenum additions enhance Inconel 686’s ability to resist highly localized acid attack, while low carbon content maintains corrosion resistance even in weld heat-affected zones. Key certifications include compliance to ASTM B575, ASME SB575, NACE MR0175/ISO 15156 for sour gas service, and EN/DIN standards.
Aurico Alloys LLP is a trusted stockist and supplier of Inconel 686 Sheets, as well as related Inconel grades for varied process challenges. We ensure full traceability, best prices, reliable delivery, and technical assistance for fabricators and OEMs in process, energy, and marine sectors. See our stocks of Inconel 600, 601, 602 CA, 617, 625, 625 LCF, 660, 686, 690, 693, 718, and X-750 Sheets for fast sourcing.
High-quality Inconel 686 Sheets ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Inconel 686 (UNS N06686) |
| Standards | ASTM B575, ASME SB575, DIN 2.4606 |
| Thickness Range | 0.5 mm – 25 mm |
| Width Range | 10 mm – 2000 mm |
| Finish | Hot rolled, cold rolled, annealed, pickled, custom coil |
| Forms | Sheets, plates, strips, coil |
| Certification | ASTM/ASME certified, NACE MR0175, EN/ISO, MTC, RoHS/REACH |
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 |
| Plate, sheet and strip specification | ASTM B575 / B906 |
Identifiers and physical constants for Inconel 686. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico stocks Inconel 686 Sheets in various thicknesses, widths, and surface treatments, ready for global shipment to process, marine, and energy industries with mill test certificates and complete documentation. We also maintain rapid-ship inventory of other Inconel sheet grades including Inconel 600, 601, 602 CA, 617, 625, 625 LCF, 660, 686, 690, 693, 718, X-750.
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 Properties
| Property | Typical (Sheet) |
|---|---|
| Tensile Strength (MPa) | 730–850 |
| Yield Strength (MPa, 0.2% offset) | 360–420 |
| Elongation (%) | 59–70 |
| Hardness (Brinell) | 200–250 |
| Service Temp (°C) | Up to 400°C in pressure vessel code; sheets up to ~1000°C in oxidizing |
Uses & Benefits
- Chemical: reactors, vessels, acid transfer piping, pollution control, scrubbers
- Oil & Gas: sour gas processing, acid gas removal, downhole tubing, refineries
- Marine: seawater condensers, cooling and piping, pumps, exhaust and propeller shafts
- Pharma: critical-line chemical handling, high-purity transfer systems
- Power: FGD units, waste incinerators, heat exchanger plates, combustion systems
- General: welded assemblies for pollution control, waste management
FAQs & Industry Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
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 Sheets offer industry-benchmark reliability in the harshest environments maximizing uptime, compliance, and service life for process-critical assets. Are you ready to equip your facilities with Aurico’s certified Inconel 686 Sheets for a safer, more profitable future?