Inconel 686 Coil Supplier, Stockist and Exporter
Table of Contents
Aurico Alloys LLP supplies Inconel 686 coil, sheet and slit strip (N06686, Werkstoff 2.4606) to ASTM B575 and B906 from Mumbai, to customers across India and in more than 40 export markets.
Much of the 686 sold in flat form ends up as a lining. Thin sheet welded over carbon-steel flue-gas ducts, stack flues and scrubber shells puts 686’s corrosion resistance where the acid condensate forms, without paying for a solid 686 structure. Coil is the economical way to buy it for that work, because the lining is laid in long runs of consistent gauge.
Sizes and Specifications
| Grade | Inconel 686 |
|---|---|
| UNS number | N06686 |
| Werkstoff (W.Nr.) | 2.4606 |
| Specifications | ASTM B575 (plate, sheet and strip); ASTM B906 (general requirements for flat-rolled products) |
| Size range | Thickness 0.05 mm to 6.0 mm, width 3 mm to 1250 mm, supplied in slit coil, mill-edge coil or narrow strip. Coil weights and inside diameters are set to suit your decoiler. |
| Condition and finish | Available in annealed and pickled, bright annealed, cold rolled 2B, and No. 4 polished finishes, with edge condition slit, deburred or rolled to order. |
| Certification | EN 10204 3.1 mill test certificate; 3.2 and third-party inspection on request |
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.
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 and Physical Properties
Sheet and strip are supplied solution annealed, at around 720 MPa tensile, with the ductility to form and fit a lining. Carbon at 0.01% maximum keeps the many seam welds of a lining free of carbide sensitisation.
Industry Applications
Why Inconel 686 coil
A flue-gas lining sees the worst of both chemistries – condensing acid with chlorides and fluorides, cycling between wet and dry as the unit loads and unloads. 686 resists that in oxidising and reducing conditions alike, which is why it is chosen where earlier linings have failed. Lining with thin sheet rather than building in solid alloy is what makes it affordable at duct and stack scale.
| Industry | Typical use |
|---|---|
| Pollution control | Thin-gauge linings for flue-gas desulphurisation outlet ducts and stack flues. |
| Waste treatment | Scrubber shell linings and internals in incineration plant. |
| Pulp and paper | Formed parts for chlorine dioxide bleaching equipment. |
| Chemical processing | Fabricated vessels and internals in mixed-acid service. |
Testing and Certification
Coil is supplied with an EN 10204 3.1 mill test certificate stating heat number, chemical analysis, mechanical properties and temper. Thickness and width are checked against the order; positive material identification and ASTM G28 testing are available on request, with third-party inspection under our ISO 9001:2015 system.
Frequently Asked Questions
Request a Quotation
Send your size, quantity and specification and we will come back with price and lead time, usually the same working day. Call +91 7977 88 6611 or email info@auricoalloys.com.