During a routine inspection at an offshore oil rig off Mumbai, engineers discovered severe pitting on Incoloy-lined heat exchanger gaskets exposed to sour gas and seawater, risking a multi-crore shutdown. Switching to Inconel® 625 foil (UNS N06625) eliminated failures, with zero pitting after two years in 0.1% H2SO4 + chlorides—highlighting why procurement leaders in chemical, oil & gas, marine, pharma, and power choose Inconel foil over Incoloy or stainless for superior pitting/crevice resistance and 3x longer life .
Table of Contents:
Inconel® foils, key grades 625 (UNS N06625, ASTM B443 Gr1/2), 600 (UNS N06600, ASTM B166), 718 (UNS N07718), offer ultra-thin (0.01mm-2mm) high-strength barriers in oxidizing/reducing acids, outperforming Incoloy 825 (better in reducing acids) and SS316L (pitting rate >1mm/yr in seawater) with corrosion rates <0.04mm/yr in 0.5M H3PO4 . High Nb/Mo stabilize against SCC, enabling thinner designs that cut material costs by 20-30% for fabricators .
These foils shine as gaskets, liners, shrouds maintaining ≥760 MPa tensile at 650°C, ideal for jet exhausts or flare stacks where alternatives embrittle . OEMs benefit from weldability (GTAW without filler) and traceability .
Aurico Alloys LLP provides affordable, best quality, authentic Inconel® Foil as trusted supplier, manufacturer, stockist helping chemical, oil & gas, marine, pharma, power industries, and hardware stores with certified stock India to abroad .
High-quality Inconel® Foil ready for industrial use.
Specification Overview
| Supplier & Stockist | Aurico Alloys LLP - Inconel foil supplier, exporter India abroad |
|---|---|
| Grades | Inconel 625, 600, 601, 617, 625 LCF, 686, 690, 693, 718 and X-750 |
| Standards | One plate, sheet and strip specification per grade – listed in Equivalent Grades & Standards below. Inspection certificates to EN 10204. |
| Thickness | 0.01mm – 2mm (thin gauge Inconel foil) |
| Width/Length | Up to 1200mm, coils/strips |
| Finish | Bright annealed, foil, precision slit |
| Delivery | Stock, EN 10204 3.1 MTC, global pack |
| Price | INR 2,500 – 12,000 per kg. Indicative USD 29 – 141 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
Inconel 625
| Property | Value |
|---|---|
| UNS number | N06625 |
| Werkstoff / EN number | 2.4856 |
| Density | 8.44 g/cm3 |
| Melting range | 1290-1350 °C |
| Specific heat (21 °C) | 410 J/kg·°C |
| Plate, sheet and strip specification | ASTM B443 / AMS 5599 / 5869 |
Identifiers and physical constants for Inconel 625. A dash means no such designation is published for this grade.
Inconel 600
| Property | Value |
|---|---|
| UNS number | N06600 |
| Werkstoff / EN number | 2.4816 |
| Density | 8.47 g/cm3 |
| Melting range | 1354-1413 °C |
| Specific heat | 444 J/kg·°C |
| Electrical resistivity | 1.03 µΩ·m |
| Curie temperature | -124 °C |
| Magnetic permeability (at 200 oersted / 15.9 kA/m) | 1.010 |
| Plate, sheet and strip specification | ASTM B168 / AMS 5540 |
Identifiers and physical constants for Inconel 600. A dash means no such designation is published for this grade.
Inconel 601
| Property | Value |
|---|---|
| UNS number | N06601 |
| Werkstoff / EN number | 2.4851 |
| Density | 8.11 g/cm3 |
| Melting range | 1360-1411 °C |
| Specific heat (21 °C) | 448 J/kg·°C |
| Magnetic permeability (200 oersted at 24 °C) | 1.003 |
| Magnetic permeability (200 oersted at -78 °C) | 1.004 |
| Magnetic permeability (200 oersted at -196 °C) | 1.016 |
| Curie temperature | < -196 °C |
| Plate, sheet and strip specification | ASTM B168 / AMS 5870 |
Identifiers and physical constants for Inconel 601. A dash means no such designation is published for this grade.
Inconel 617
| Property | Value |
|---|---|
| UNS number | N06617 |
| Werkstoff / EN number | 2.4663 |
| Density | 8.36 g/cm3 |
| Melting range | 1332-1380 °C |
| Specific heat (26 °C) | 419 J/kg·°C |
| Electrical resistivity (26 °C) | 1.22 µΩ·m |
| Plate, sheet and strip specification | ASTM B168 / AMS 5888 / 5889 |
Identifiers and physical constants for Inconel 617. A dash means no such designation is published for this grade.
Inconel 625 LCF
| Property | Value |
|---|---|
| UNS number | N06626 |
| Density | 8.44 g/cm3 |
| Melting range | 1280-1350 °C |
| Specific heat | 410 J/kg·K |
| Magnetic permeability (200 oersted at 75 °F) | 1.0006 |
| Plate, sheet and strip specification | AMS 5879 |
Identifiers and physical constants for Inconel 625 LCF. A dash means no such designation is published for this grade.
Inconel 686
| 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.
Inconel 690
| 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 |
| Plate, sheet and strip specification | ASTM B168 / B906 |
Identifiers and physical constants for Inconel 690. A dash means no such designation is published for this grade.
Inconel 693
| Property | Value |
|---|---|
| UNS number | N06693 |
| Density | 7.77 g/cm3 |
| Melting range | 1317-1367 °C |
| Electrical resistivity | 1.168 µΩ·m |
| Plate, sheet and strip specification | ASTM B168 / B906 |
Identifiers and physical constants for Inconel 693. A dash means no such designation is published for this grade.
Inconel 718
| 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 |
| Plate, sheet and strip specification | ASTM B670 / B906 / AMS 5596 / 5597 |
Identifiers and physical constants for Inconel 718. A dash means no such designation is published for this grade.
Inconel X-750
| Property | Value |
|---|---|
| UNS number | N07750 |
| Werkstoff / EN number | 2.4669 |
| Density | 8.28 g/cm3 |
| Melting range | 1393-1427 °C |
| Curie temperature (as hot-rolled) | -225 °F (bulletin publishes no SI value) |
| Curie temperature (triple-heat-treated) | -193 °F (bulletin publishes no SI value) |
| Magnetic permeability (200 oersted at 21 °C - as hot-rolled) | 1.0020 |
| Magnetic permeability (200 oersted at 21 °C - triple-heat-treated) | 1.0035 |
| Emissivity (oxidised surface at 316 °C / 600 °F) | 0.895 |
| Emissivity (oxidised surface at 1093 °C / 2000 °F) | 0.925 |
| Linear contraction on precipitation treatment (704 °C / 1300 °F for 20 h - hot-rolled) | 0.00044 in/in |
| Linear contraction on precipitation treatment (704 °C / 1300 °F for 20 h - 20% cold-rolled) | 0.00052 in/in |
| Linear contraction on precipitation treatment (704 °C / 1300 °F for 20 h - annealed) | 0.00026 in/in |
| Plate, sheet and strip specification | AMS 5542 / 5598 |
Identifiers and physical constants for Inconel X-750. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico stocks Inconel 625 foil for sour gas/phosphoric plants, 600 for chemical liners, thin gauge for marine. Inconel foil price per kg Mumbai competitive, verified exporters with MTC .
For bellows, diaphragms and expansion joints that flex millions of times, ask for Inconel 625 LCF foil and coil (UNS N06626) instead. It is 625 held to a controlled grain size for low-cycle fatigue, vacuum melted and supplied to AMS 5879 in the same thin gauges.
Chemical Composition
Inconel 625
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 58.0 | — |
| Chromium (Cr) | 20.0 | 23.0 |
| Iron (Fe) | — | 5.0 |
| Molybdenum (Mo) | 8.0 | 10.0 |
| Niobium + Tantalum (Nb+Ta) | 3.15 | 4.15 |
| Carbon (C) | — | 0.10 |
| Manganese (Mn) | — | 0.50 |
| Silicon (Si) | — | 0.50 |
| Phosphorus (P) | — | 0.015 |
| Sulfur (S) | — | 0.015 |
| Aluminium (Al) | — | 0.40 |
| Titanium (Ti) | — | 0.40 |
| Cobalt (Co) | — | 1.0 (if determined) |
Composition limits for Inconel 625. 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.
Inconel 600
| Element | Min (%) | Max (%) |
|---|---|---|
| Ni+Co | 72.0 | — |
| Chromium (Cr) | 14.0 | 17.0 |
| Iron (Fe) | 6.0 | 10.0 |
| Carbon (C) | — | 0.15 |
| Manganese (Mn) | — | 1.0 |
| Sulfur (S) | — | 0.015 |
| Silicon (Si) | — | 0.50 |
| Copper (Cu) | — | 0.50 |
Composition limits for Inconel 600. 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.
Inconel 601
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 58.0 | 63.0 |
| Chromium (Cr) | 21.0 | 25.0 |
| Iron (Fe) | — | Balance |
| Aluminium (Al) | 1.0 | 1.7 |
| Carbon (C) | — | 0.10 |
| Manganese (Mn) | — | 1.0 |
| Sulfur (S) | — | 0.015 |
| Silicon (Si) | — | 0.50 |
| Copper (Cu) | — | 1.0 |
Composition limits for Inconel 601. 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.
Inconel 617
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 44.5 | — |
| Chromium (Cr) | 20.0 | 24.0 |
| Cobalt (Co) | 10.0 | 15.0 |
| Molybdenum (Mo) | 8.0 | 10.0 |
| Aluminium (Al) | 0.8 | 1.5 |
| Carbon (C) | 0.05 | 0.15 |
| Iron (Fe) | — | 3.0 |
| Manganese (Mn) | — | 1.0 |
| Silicon (Si) | — | 1.0 |
| Sulfur (S) | — | 0.015 |
| Titanium (Ti) | — | 0.6 |
| Copper (Cu) | — | 0.5 |
| Boron (B) | — | 0.006 |
Composition limits for Inconel 617. 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.
Inconel 625 LCF
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.03 |
| Manganese (Mn) | — | 0.50 |
| Phosphorus (P) | — | 0.015 |
| Sulfur (S) | — | 0.015 |
| Silicon (Si) | — | 0.15 |
| Chromium (Cr) | 20.0 | 23.0 |
| Nickel (Ni) | 58.0 | Balance |
| Molybdenum (Mo) | 8.0 | 10.0 |
| Niobium + Tantalum (Nb+Ta) | 3.15 | 4.15 |
| Titanium (Ti) | — | 0.40 |
| Aluminium (Al) | — | 0.40 |
| Cobalt (Co) | — | 1.0 |
| Iron (Fe) | — | 5.0 |
| Nitrogen (N) | — | 0.02 |
Composition limits for Inconel 625 LCF. 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.
Inconel 686
| 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.
Inconel 690
| 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.
Inconel 693
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance (determined arithmetically by difference) |
| Chromium (Cr) | 27.0 | 31.0 |
| Iron (Fe) | 2.5 | 6.0 |
| Aluminium (Al) | 2.5 | 4.0 |
| Niobium (Nb) | 0.5 | 2.5 |
| Manganese (Mn) | — | 1.0 |
| Titanium (Ti) | — | 1.0 |
| Copper (Cu) | — | 0.5 |
| Silicon (Si) | — | 0.5 |
| Carbon (C) | — | 0.15 |
| Sulfur (S) | — | 0.01 |
Composition limits for Inconel 693. 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.
Inconel 718
| 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.
Inconel X-750
| Element | Min (%) | Max (%) |
|---|---|---|
| Ni+Co | 70.0 | — |
| Chromium (Cr) | 14.0 | 17.0 |
| Iron (Fe) | 5.0 | 9.0 |
| Titanium (Ti) | 2.25 | 2.75 |
| Niobium + Tantalum (Nb+Ta) | 0.70 | 1.20 |
| Aluminium (Al) | 0.40 | 1.00 |
| Cobalt (Co) | — | 1.0 (determination not required for routine acceptance) |
| Copper (Cu) | — | 0.50 |
| Carbon (C) | — | 0.08 |
| Manganese (Mn) | — | 1.0 |
| Silicon (Si) | — | 0.50 |
| Sulfur (S) | — | 0.010 |
Composition limits for Inconel X-750. 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 | Inconel 625 (Annealed) | Inconel 600 (Annealed) |
|---|---|---|
| Tensile Strength (MPa) | ≥690 Gr2 | ≥550 |
| Yield Strength 0.2% (MPa) | ≥276 | ≥240 |
| Elongation (%) | ≥30 | ≥35 |
| Max Service Temp (°C) | ≤980 (oxidation) | ≤1150 |
Applications & Benefits
Inconel® foils excel vs Incoloy 825 in pitting/SCC (Inconel PREN >50 vs 38), ideal for chlorides where Incoloy fails faster .
- Chemical: Corrosion resistant Inconel 600 foil piping liners; Inconel 625 foil sulfuric/phosphoric acid (<0.04mm/yr rate) .
- Oil & Gas: UNS N06625 Inconel foil sour gas heat exchangers, downhole gaskets .
- Power: Inconel 718 foil turbines, Inconel 625 flare stacks/chimneys .
- Marine: Marine grade Inconel 625 foil seawater systems, superior vs Incoloy SCC .
- Pharma: Acid resistant foils reactors/distillation .
- High-Temp: Thin gauge Inconel foil 0.01-2mm shields, jet exhausts; competitive price per kg Mumbai .
FAQ & Search Trends
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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
Inconel® Foil from Aurico Alloys LLP ensures extreme durability, compliance, and efficiency in harshest environments elevating performance beyond common alternatives . Is your next project protected with premium Inconel foil?