When a large petrochemical facility faced recurring failures in high-temperature heat exchangers and reactors due to oxidation and sulfidation, the solution came with Incoloy Round Bars. These nickel-iron-chromium superalloys delivered exceptional resistance to corrosion, high temperatures, and stress corrosion cracking, transforming plant reliability and reducing costly downtime. Today, procurement teams, engineers, and fabricators across chemical processing, marine, oil & gas, pharma, and power generation industries rely on Incoloy round bars for mission-critical applications.
Table of Contents:
Incoloy alloys, including grades 800 (UNS N08800, W.Nr. 1.4876) and 825 (UNS N08825, W.Nr. 2.4858), offer balanced nickel, chromium, and iron compositions that bridge the gap between standard stainless steels and expensive nickel alloys. Incoloy 800 provides excellent high-temperature strength up to 1500°F (816°C), while Incoloy 825 adds molybdenum and copper for superior resistance to pitting, crevice corrosion, and stress corrosion cracking in acidic and chloride environments. These alloys resist oxidation, carburization, sulfidation, and chloride attack, ideal for heat exchangers, pressure vessels, piping, and chemical processing equipment.
Incoloy round bars are supplied globally per ASTM B408, ASTM B425, EN 10295, and DIN 17470 standards, available in diameters from 3mm to 800mm, with bright, polished, peeled, and custom finishes. Full mill test certificates, NACE MR0175 compliance, and batch traceability support demanding projects in petrochemical, oil & gas, marine, and pharmaceutical sectors. These bars are easily welded, machined, and fabricated, making them the preferred choice for OEMs, fabricators, and hardware suppliers worldwide.
As a trusted Incoloy Round Bars supplier, manufacturer, and stockist, Aurico Alloys LLP provides affordable, best-quality, authentic materials for chemical, oil & gas, marine, pharma, and power generation industries, along with hardware and industrial supply stores ensuring certified reliability and global compliance.
High-quality Incoloy Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Incoloy DS, 800, 800H, 800HT, 825, 890, 903, 909, 925, 945 and 660 (A286) |
| Standards | One rod and bar specification per grade – listed in Equivalent Grades & Standards below. Inspection certificates to EN 10204. |
| Diameter Range | 3mm – 800mm |
| Length | 100mm – 6000mm (custom cut available) |
| Finish | Bright, polished, peeled, ground, hot-rolled, annealed |
| Delivery | Direct stock, mill test certificates, NACE MR0175, batch traceability |
| Price | INR 1,500 – 12,000 per kg. Indicative USD 18 – 141 per kg; quoted against grade, form, size and quantity. |
Incoloy Round Bar Grades Supplied
Each grade below has its own round bar page carrying that grade’s size range, properties and the specification written for it.
| Grade | Chosen for |
|---|---|
| Incoloy DS Round Bars | Carburisation and thermal cycling in furnace parts |
| Incoloy 800 Round Bars | General furnace and process service |
| Incoloy 800H Round Bars | Controlled carbon and grain size for creep strength |
| Incoloy 800HT Round Bars | Tighter still on carbon and aluminium plus titanium |
| Incoloy 825 Round Bars | Sulphuric and phosphoric acid, pickling plant |
| Incoloy 890 Round Bars | Wet corrosion service |
| Incoloy 903 Round Bars | Constant modulus and low expansion, aerospace rings |
| Incoloy 909 Round Bars | Low expansion with higher strength than 903 |
| Incoloy 925 Round Bars | Sour oil and gas service with high strength |
| Incoloy 945 Round Bars | Higher strength again for downhole components |
| Incoloy 660 Round Bars | Iron-base precipitation-hardened superalloy for turbine and fastener service |
Equivalent Grades & Standards
Incoloy DS
| Property | Value |
|---|---|
| UNS number | N08330 |
| Werkstoff / EN number | 1.4886 |
| Density | 7.94 g/cm3 |
| Melting range | 1343-1393 °C |
| Specific heat (100 °F) | 0.117 Btu/lb·°F (no SI value published) |
| Thermal conductivity (75 °F) | 7.2 Btu·ft/ft²·hr·°F (no SI value published) |
| Electrical resistivity (75 °F) | 616 ohm·circ mil/ft (no SI value published) |
| Coefficient of expansion (70-200 °F) | 8.3 µin/in·°F (no SI value published) |
| Magnetic permeability (annealed at H=2810 oersted) | 1.009 |
| Rod and bar specification | ASTM B511 / B512 |
Identifiers and physical constants for Incoloy DS. A dash means no such designation is published for this grade.
Incoloy 800
| Property | Value |
|---|---|
| UNS number | N08800 |
| Werkstoff / EN number | 1.4876 |
| EN designation | X10NiCrAlTi32-21 |
| Density | 7.94 g/cm3 |
| Melting range | 1357-1385 °C |
| Specific heat (0-100 °C) | 460 J/kg·°C |
| Magnetic permeability (200 oersted at 21 °C - annealed) | 1.014 |
| Magnetic permeability (200 oersted at 21 °C - hot-rolled) | 1.009 |
| Curie temperature | -115 °C |
| Rod and bar specification | ASTM B408 |
Identifiers and physical constants for Incoloy 800. A dash means no such designation is published for this grade.
Incoloy 800H
| Property | Value |
|---|---|
| UNS number | N08810 |
| Werkstoff / EN number | 1.4958 |
| EN designation | X5NiCrAlTi31-20 |
| Density | 7.94 g/cm3 |
| Melting range | 1357-1385 °C |
| Specific heat (0-100 °C) | 460 J/kg·°C |
| Magnetic permeability (200 oersted at 21 °C - annealed) | 1.014 |
| Magnetic permeability (200 oersted at 21 °C - hot-rolled) | 1.009 |
| Curie temperature | -115 °C |
| Rod and bar specification | ASTM B408 |
Identifiers and physical constants for Incoloy 800H. A dash means no such designation is published for this grade.
Incoloy 800HT
| Property | Value |
|---|---|
| UNS number | N08811 |
| Werkstoff / EN number | 1.4959 |
| EN designation | X8NiCrAlTi32-21 |
| Density | 7.94 g/cm3 |
| Melting range | 1357-1385 °C |
| Specific heat (0-100 °C) | 460 J/kg·°C |
| Magnetic permeability (200 oersted at 21 °C - annealed) | 1.014 |
| Magnetic permeability (200 oersted at 21 °C - hot-rolled) | 1.009 |
| Curie temperature | -115 °C |
| Rod and bar specification | ASTM B408 |
Identifiers and physical constants for Incoloy 800HT. A dash means no such designation is published for this grade.
Incoloy 825
| Property | Value |
|---|---|
| UNS number | N08825 |
| Werkstoff / EN number | 2.4858 |
| EN designation | NiCr21Mo |
| Density | 8.14 g/cm3 |
| Melting range | 1370-1400 °C |
| Specific heat | 440 J/kg·°C |
| Curie temperature | < -196 °C |
| Magnetic permeability (at 200 oersted / 15.9 kA/m) | 1.005 |
| Rod and bar specification | ASTM B425 / B564 |
Identifiers and physical constants for Incoloy 825. A dash means no such designation is published for this grade.
Incoloy 890
| Property | Value |
|---|---|
| UNS number | N08890 |
| Werkstoff / EN number | — |
| EN designation | — |
| Density | 7.94 g/cm3 |
| Melting range | 1309-1383 °C |
| Rod and bar specification | ASTM B408 |
Identifiers and physical constants for Incoloy 890. A dash means no such designation is published for this grade.
Incoloy 903
| Property | Value |
|---|---|
| UNS number | N19903 |
| Werkstoff / EN number | — |
| EN designation | — |
| Density | 8.25 g/cm3 |
| Melting range | 1318-1393 °C |
| Curie temperature (age-hardened) | 416-471 °C |
| Rod and bar specification | Mill specification |
Identifiers and physical constants for Incoloy 903. A dash means no such designation is published for this grade.
Incoloy 909
| Property | Value |
|---|---|
| UNS number | N19909 |
| Werkstoff / EN number | — |
| EN designation | — |
| Density | 8.19 g/cm3 |
| Melting range | 1395-1430 °C |
| Curie temperature | 400-455 °C |
| Young's modulus | 159 GPa |
| Modulus of rigidity | 59 GPa |
| Rod and bar specification | AMS 5892 / 5884 |
Identifiers and physical constants for Incoloy 909. A dash means no such designation is published for this grade.
Incoloy 925
| Property | Value |
|---|---|
| UNS number | N09925 |
| Werkstoff / EN number | 2.4852 |
| EN designation | NiCr20FeMo3TiCuAl |
| Density | 8.08 g/cm3 |
| Melting range | 1311-1366 °C |
| Electrical resistivity | 1.17 µΩ·m |
| Magnetic permeability (at 200 oersted / 15.9 kA/m) | 1.001 |
| Rod and bar specification | NACE MR-01-75 / ASME CC 2218 / HA46 |
Identifiers and physical constants for Incoloy 925. A dash means no such designation is published for this grade.
Incoloy 945
| Property | Value |
|---|---|
| UNS number | N09945 |
| Werkstoff / EN number | — |
| EN designation | — |
| Density | 8.2 g/cm3 |
| Melting range | 1270-1377 °C |
| Electrical resistivity | 1.10 µΩ·m |
| Magnetic permeability (at 200 oersted / 15.9 kA/m) | 1.003 |
| Young's modulus | 200.8 GPa |
| Rod and bar specification | NACE MR0175 / ISO 15156-3 / HA 119 |
Identifiers and physical constants for Incoloy 945. A dash means no such designation is published for this grade.
Incoloy 660 (A286)
| Property | Value |
|---|---|
| UNS number | S66286 |
| Density | 7.94 g/cm3 |
| Melting range | 1371-1427 °C |
| Rod and bar specification | ASTM A638 / ASME SA-638 / AMS 5731 / 5732 / 5734 / 5737 |
Identifiers and physical constants for Incoloy 660 (A286). A dash means no such designation is published for this grade.
Stock & Product Availability
Incoloy Round Bars are stocked in extensive grades and sizes for rapid global supply to process plants, OEMs, marine, chemical, and power projects with complete certification.
Chemical Composition
Incoloy DS
| Element | Min (%) | Max (%) |
|---|---|---|
| Chromium (Cr) | 18.0 | 20.0 |
| Nickel (Ni) | 34.0 | 37.0 |
| Manganese (Mn) | — | 2.0 |
| Silicon (Si) | 1.0 | 1.5 |
| Copper (Cu) | — | 1.0 |
| Phosphorus (P) | — | 0.03 |
| Sulfur (S) | — | 0.03 |
| Carbon (C) | 0.04 | 0.08 |
| Iron (Fe) | — | Balance |
Composition limits for Incoloy DS. 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.
Incoloy 800
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 30.0 | 35.0 |
| Chromium (Cr) | 19.0 | 23.0 |
| Iron (Fe) | 39.5 | — |
| Carbon (C) | — | 0.10 |
| Aluminium (Al) | 0.15 | 0.60 |
| Titanium (Ti) | 0.15 | 0.60 |
| Aluminium + Titanium (Al+Ti) | 0.30 | 1.20 |
| Manganese (Mn) | — | 1.5 |
| Silicon (Si) | — | 1.0 |
| Copper (Cu) | — | 0.75 |
| Sulfur (S) | — | 0.015 |
Composition limits for Incoloy 800. 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.
Incoloy 800H
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 30.0 | 35.0 |
| Chromium (Cr) | 19.0 | 23.0 |
| Iron (Fe) | 39.5 | — |
| Carbon (C) | 0.05 | 0.10 |
| Aluminium (Al) | 0.15 | 0.60 |
| Titanium (Ti) | 0.15 | 0.60 |
| Aluminium + Titanium (Al+Ti) | 0.30 | 1.20 |
| Manganese (Mn) | — | 1.5 |
| Silicon (Si) | — | 1.0 |
| Copper (Cu) | — | 0.75 |
| Sulfur (S) | — | 0.015 |
Composition limits for Incoloy 800H. 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.
Incoloy 800HT
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 30.0 | 35.0 |
| Chromium (Cr) | 19.0 | 23.0 |
| Iron (Fe) | 39.5 | — |
| Carbon (C) | 0.06 | 0.10 |
| Aluminium (Al) | 0.25 | 0.60 |
| Titanium (Ti) | 0.25 | 0.60 |
| Aluminium + Titanium (Al+Ti) | 0.85 | 1.20 |
| Manganese (Mn) | — | 1.5 |
| Silicon (Si) | — | 1.0 |
| Copper (Cu) | — | 0.75 |
| Phosphorus (P) | — | 0.045 |
| Sulfur (S) | — | 0.015 |
Composition limits for Incoloy 800HT. 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.
Incoloy 825
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 38.0 | 46.0 |
| Iron (Fe) | 22.0 | — |
| Chromium (Cr) | 19.5 | 23.5 |
| Molybdenum (Mo) | 2.5 | 3.5 |
| Copper (Cu) | 1.5 | 3.0 |
| Titanium (Ti) | 0.6 | 1.2 |
| Carbon (C) | — | 0.05 |
| Manganese (Mn) | — | 1.0 |
| Sulfur (S) | — | 0.03 |
| Silicon (Si) | — | 0.5 |
| Aluminium (Al) | — | 0.2 |
Composition limits for Incoloy 825. 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.
Incoloy 890
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 42.5 nominal | |
| Chromium (Cr) | 25 nominal | |
| Iron (Fe) | — | Balance |
| Aluminium (Al) | 0.1 nominal | |
| Niobium (Nb) | 0.4 nominal | |
| Titanium (Ti) | — | 1 |
| Carbon (C) | 0.1 nominal | |
| Manganese (Mn) | — | 1 |
| Silicon (Si) | 1.8 nominal | |
| Phosphorus (P) | — | 0.03 |
| Sulfur (S) | — | 0.015 |
| Copper (Cu) | — | 0.75 |
| Molybdenum (Mo) | 1.5 nominal | |
| Tantalum (Ta) | 0.2 nominal | |
Composition for Incoloy 890. Figures given as a range or a maximum are limits and those marked nominal are not; none of them are measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Incoloy 903
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 36.0 | 40.0 |
| Cobalt (Co) | 13.0 | 17.0 |
| Aluminium (Al) | 0.30 | 1.15 |
| Titanium (Ti) | 1.00 | 1.85 |
| Niobium (Nb) | 2.40 | 3.50 |
| Iron (Fe) | — | Balance |
Composition limits for Incoloy 903. 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.
Incoloy 909
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 35.0 | 40.0 |
| Cobalt (Co) | 12.0 | 16.0 |
| Niobium (Nb) | 4.3 | 5.2 |
| Titanium (Ti) | 1.3 | 1.8 |
| Iron (Fe) | — | Balance |
| Silicon (Si) | 0.25 | 0.50 |
| Aluminium (Al) | — | 0.15 |
| Carbon (C) | — | 0.06 |
Composition limits for Incoloy 909. 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.
Incoloy 925
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 42.0 | 46.0 |
| Chromium (Cr) | 19.5 | 22.5 |
| Iron (Fe) | 22 | — |
| Molybdenum (Mo) | 2.5 | 3.5 |
| Copper (Cu) | 1.5 | 3.0 |
| Titanium (Ti) | 1.9 | 2.4 |
| Aluminium (Al) | 0.1 | 0.5 |
| Manganese (Mn) | — | 1.0 |
| Silicon (Si) | — | 0.5 |
| Niobium (Nb) | — | 0.5 |
| Carbon (C) | — | 0.03 |
| Sulfur (S) | — | 0.03 |
Composition limits for Incoloy 925. 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.
Incoloy 945
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 45.0 | 55.0 |
| Chromium (Cr) | 19.5 | 23.0 |
| Iron (Fe) | — | Balance |
| Molybdenum (Mo) | 3.0 | 4.0 |
| Niobium (Nb) | 2.5 | 4.5 |
| Copper (Cu) | 1.5 | 3.0 |
| Titanium (Ti) | 0.5 | 2.5 |
| Aluminium (Al) | 0.01 | 0.7 |
| Manganese (Mn) | — | 1.0 |
| Silicon (Si) | — | 0.5 |
| Sulfur (S) | — | 0.03 |
| Phosphorus (P) | — | 0.03 |
| Carbon (C) | 0.005 | 0.04 |
Composition limits for Incoloy 945. 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.
Incoloy 660 (A286)
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.08 |
| Manganese (Mn) | 1.0 | 2.0 |
| Silicon (Si) | — | 1.0 |
| Sulfur (S) | — | 0.015 |
| Phosphorus (P) | — | 0.025 |
| Chromium (Cr) | 13.5 | 16.0 |
| Nickel (Ni) | 24.0 | 27.0 |
| Iron (Fe) | — | Balance |
| Molybdenum (Mo) | 1.0 | 1.5 |
| Titanium (Ti) | 1.90 | 2.35 |
| Aluminium (Al) | — | 0.35 |
| Boron (B) | 0.003 | 0.010 |
| Vanadium (V) | 0.10 | 0.50 |
Composition limits for Incoloy 660 (A286). 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 | Incoloy 800 | Incoloy 825 |
|---|---|---|
| Tensile Strength (MPa) | ≥520 | ≥520 |
| Yield Strength (MPa) | ≥205 | ≥240 |
| Elongation (%) | ≥30 | ≥30 |
| Hardness (HB) | 150–200 | ≤220 |
| Max. Service Temp (°C) | up to 816 (1500°F) | up to 540 (1000°F) corrosive |
Applications & Benefits
- Chemical: reactors, heat exchangers, sulfuric acid piping, pickling tanks
- Marine: propeller shafts, desalination equipment, seawater piping
- Oil & Gas: cracker tubes, furnace equipment, sour gas handling, downhole tubing
- Pharma: autoclaves, sterilizers, process vessels
- Power: heat exchangers, turbine components, boiler feed systems
- Petrochemical: furnace parts, exhaust systems, pollution control
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
Incoloy Round Bars from Aurico Alloys LLP deliver proven high-temperature strength, corrosion resistance, and certified compliance for chemical, marine, oil & gas, pharma, and power sectors ensuring safer, more reliable operations. Are your critical assets protected with industry-leading Incoloy alloys?