Incoloy 890 Plates | ASTM B409 UNS N08890 Furnace Excellence
Table of Contents:
When a Reliance Industries ethylene cracker faced $18M in tube failures from carburization attack after 14 months at 1150°C, where even Incoloy 800H suffered 2 mm wall loss, engineers specified Incoloy 890 Plates extending radiant tube life to 5+ years with superior chromium/silicon protection that forms a self-healing oxide scale against carbon diffusion. Petrochemical procurement managers, power plant fabricators, and furnace OEMs now demand these advanced nickel-chromium-iron alloys (UNS N08890) where Alloy 800H, 803, or stainless HK suffer rapid degradation in aggressive pyrolysis and sulfidation environments.
Incoloy 890 delivers tensile strength ≥652 MPa and yield ≥272 MPa in plate form, with creep-rupture properties matching Alloy 803 while outperforming 800HT above 980°C due to optimized Mo/Nb additions that stabilize structure against sigma phase and carbide embrittlement. Unlike precipitation-hardened superalloys, 890's solid-solution strengthening maintains ductility through 1200°C thermal cycling critical for ethylene furnace pigtails and power plant superheaters.
Aurico Alloys LLP provides affordable, authentic Incoloy 890 Plates as trusted supplier, manufacturer, and stockist for chemical, oil & gas, marine, pharma, power industries, and hardware stores with full ASTM B409/B906 compliance and EN10204 3.1 MTC certification. As leading Incoloy 890 Plates supplier, stockist, exporter in India to abroad, we serve Incoloy 890 plate suppliers in Mumbai for high-temperature furnace muffles and retorts with immediate availability.
High-quality Incoloy 890 Plates ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP - Incoloy 890 exporters Mumbai |
|---|---|
| Grade | Incoloy 890 (UNS N08890) |
| Standards | ASTM B409/B906, ASME SB409/SB906 |
| Thickness Range | 4.75 mm – 150 mm |
| Width/Length | 1000-2500mm width, up to 6000mm length |
| Finish | Solution annealed 1121-1204°C (2050-2200°F), air cooled |
| Delivery | MTC 3.1, PMI, grain size verification |
| Price | INR 3,500 – 4,500 per kg. Indicative USD 41 – 53 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N08890 |
| Werkstoff / EN number | — |
| EN designation | — |
| Density | 7.94 g/cm3 |
| Melting range | 1309-1383 °C |
| Plate, sheet and strip specification | ASTM B409 / B906 |
Identifiers and physical constants for Incoloy 890. A dash means no such designation is published for this grade.
Stock & Product Availability
ASTM B409 Incoloy 890 plates for radiant tubes and heat-treating fixtures; Incoloy 890 plate price per kg in Mumbai for thermal processing industry applications. High-strength Alloy 890 plates for power plant superheater tube supports with verified solution anneal certification.
Chemical Composition
| 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.
Mechanical Properties
| Property | Plate Solution Annealed |
|---|---|
| Tensile Strength (MPa/ksi) | ≥652 / 94.5 |
| Yield Strength 0.2% (MPa/ksi) | ≥272 / 39.4 |
| Elongation (%) | ≥46 |
| Max Service Temp | 1200°C / 2200°F |
| Creep Strength | >800H above 980°C |
Applications & Benefits
- Petrochem: Sulfidation resistant Incoloy 890 plates for ethylene pyrolysis furnace components; Incoloy 890 plate stockist in Mumbai for petrochemical waste heat recovery.
- Chemical: UNS N08890 Incoloy plates for chemical reactors operating in carburizing atmospheres; resists carbon diffusion better than 803.
- Power: High-strength Alloy 890 plates for power plant superheater tube supports; superior thermal fatigue resistance.
- Oil&Gas/Marine: Marine grade Incoloy 890 plates for specialized offshore high-heat flare tips; Incoloy 890 plate stockholders in Maharashtra for gas turbine combustion liners.
- Pharma: High-purity Incoloy 890 plates for pharmaceutical high-temperature sterilization chambers; custom cut-to-size Incoloy 890 plates for specialty industrial furnace baskets.
- Sourcing: Verified Incoloy 890 plate exporters in India with Mill Test Certificates (MTC) 3.1; leading Incoloy 890 alloy plate dealers in Mumbai for cryogenic to 1200°C service.
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
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Incoloy 890 plates from Aurico Alloys LLP deliver unmatched ASTM B409/UNS N08890 performance for 1200°C pyrolysis furnaces, radiant tubes, and superheaters essential upgrade over 800H where carburization and sulfidation destroy lesser alloys, backed by Mumbai stock as premier Incoloy 890 plate supplier, stockist, exporter. Are your high-temperature furnace assets protected by 890's superior environmental resistance?