In a large-scale petrochemical plant, continuous furnace muffles fabricated from standard Incoloy 800H suffered rapid oxidation scaling after just 8 months at 1150°C, causing $1.2M in unplanned downtime and catalyst contamination. The breakthrough came with NiCr 80:20 Sheets – an 80Ni-20Cr alloy forming a stable Cr₂O₃ protective scale up to 1250°C that extended muffle life to 36+ months, reduced scaling rates by 85%, and enabled 98.5% furnace availability across chemical, oil & gas, marine, pharma, and power applications.
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Designed for procurement heads, engineers, fabricators, and OEM manufacturers requiring cost-effective high-temperature oxidation resistance, NiCr 80:20 outperforms complex superalloys like Nimonic 75 in static furnace applications while offering superior formability and weldability. With <0.1 mg/cm²·hr oxidation loss at 1200°C and tensile strength retention of 650 MPa at 1000°C, it serves as the workhorse for heating elements, kiln linings, and reformer tubes where lifecycle economics trump peak creep strength.
Aurico Alloys LLP is your reliable NiCr 80:20 Sheets supplier, stockist, and exporter in India to abroad, providing affordable, authentic ASTM B344-certified material with NiCr 80:20 ready stock India, competitive sheet pricing per kg, and precision NiCr 80:20 sheet cut to size services for chemical furnace muffles, oil & gas reformers, marine exhausts, pharma kilns, power boilers, and hardware supply needs.
High-quality NiCr 80:20 Sheets ready for industrial use.
Specification Overview
| Supplier | Aurico Alloys LLP – NiCr 80:20 sheets supplier/export |
|---|---|
| Alloy | NiCr 80:20 (80Ni-20Cr) |
| Standards | ASTM B344, AMS 5599 (related), DIN 17742 |
| Thickness Range | 0.1-12mm (NiCr 80:20 sheet cut to size) |
| Max Service Temp | 1250°C oxidizing |
| Condition | Annealed strip/sheet |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N06023 |
| Werkstoff / EN number | 2.4869 |
| EN designation | NiCr 80 20 |
| Density | 8.3 g/cm3 |
| Melting range | 1400 °C |
| Electrical resistivity (20 °C - per DIN 17470) | 112 µΩ·cm |
| Electrical resistivity (20 °C - per ASTM B 344) | 108 µΩ·cm |
| Thermal conductivity | 14.6 W/m·K |
| Specific heat (20 °C) | 420 J/kg·K |
| Coefficient of expansion (200 °C) | 14.0 µm/m·°C |
| Modulus of elasticity | 200 kN/mm² |
| Maximum operating temperature in air (as heating element) | 1200 °C |
| Maximum operating temperature in air (as resistance alloy) | 600 °C |
| Plate, sheet and strip specification | ASTM B344 |
Identifiers and physical constants for Nichrome 80/20. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP offers competitive NiCr 80:20 sheet price per kg with extensive ready stock for furnace fabricators worldwide.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Iron (Fe) | — | 1 |
| Chromium (Cr) | 19 | 21 |
| Nickel (Ni) | — | Balance |
| Carbon (C) | — | 0.15 |
| Manganese (Mn) | — | 1.0 |
| Silicon (Si) | 0.75 | 1.75 |
| Others | — | 0.01 |
Composition limits for Nichrome 80/20. 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
| Temperature | UTS (MPa) | 0.2%YS (MPa) | Elong. (%) |
|---|---|---|---|
| Room Temp | 700-800 | 300-400 | >40 |
| 1000°C | 650 | 250 | 45 |
| Oxidation 1200°C | <0.1 mg/cm²·hr | - | - |
Applications & Economic Advantages
- Chemical: Ethylene pyrolysis furnace muffles – 85% scaling reduction vs 800H
- Oil & Gas: Steam reformer tubesheets, radiant coils to 1250°C
- Marine: Exhaust duct liners resisting sulfur compounds
- Pharma: Validation-grade kiln trays, oxidation-free surfaces
- Power: Waste incinerator grates, biomass boiler tubes
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
NiCr 80:20 sheets from Aurico Alloys LLP deliver ASTM B344-certified oxidation resistance with unmatched 1250°C scale stability and economic lifecycle advantages for your furnace muffles, reformers, and kiln applications. Are your high-temperature static components protected by the economical 80:20 chemistry that outperforms complex superalloys in oxidation service?