NiCr 80:20 Plates for Industrial Furnace Heating, Power Resistors & Offshore Heaters
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When a thermal power plant outside Mumbai faced repeated heater coil failures in its 950°C ash-handling furnace, cheaper FeCrAl strips were distorted and snapped every few months forcing shutdowns that cost lakhs per hour. The turnaround came when the maintenance team switched to NiCr 80:20 Plates (UNS N06023): life doubled, element resistance stayed stable, and operators finally trusted their heat tracing and furnace performance again . Across chemical, oil & gas, marine, pharma, and power generation, procurement heads now specify NiCr 80:20 for load banks, industrial kilns and offshore immersion heaters where generic stainless or low-nickel plates simply cannot survive .
NiCr 80:20 often called Nichrome 80/20 is a high-resistance 80% nickel, 20% chromium alloy engineered for continuous service up to about 1200°C, combining stable electrical resistivity with excellent oxidation resistance even under frequent thermal cycling . Its electrical resistivity is around 1.08–1.12 Ω·mm²/m at 20°C, significantly higher than iron–nickel–chromium alternatives, which allows designers to use shorter, more compact elements or thinner plates to achieve the same power rating . For OEM manufacturers and hardware or industrial supply stores, that means fewer hot spots, more predictable ohmic values, and lower warranty claims compared to low-cost resistance alloys .
Mechanically, Alloy 80/20 maintains yield strength of at least 280 MPa and tensile strength of at least 650 MPa at room temperature, with elongation of about 30%, giving far better formability and bend life than brittle FeCrAl at equivalent temperatures . This combination of ductility and high creep resistance in oxidizing atmospheres is why NiCr 80:20 is widely used in industrial furnace heating elements, electric kilns, high‑power resistor banks, and chemical incinerators worldwide . For marine and offshore users, its resistance to hot corrosion in oxidizing gas mixtures like air, nitrogen and combustion products makes it a safer bet than basic stainless for immersion heaters and subsea flowline tracing .
Aurico Alloys LLP, as an affordable, best‑quality and authentic supplier, manufacturer and stockist of NiCr 80:20 Plates, supports chemical plants, oil & gas operators, marine fabricators, pharma OEMs and power utilities with EN 10204 3.1 certified material, cut‑to‑size plates and export‑ready packaging from India to abroad . NiCr 80:20 plate suppliers in Mumbai benefit from local availability for industrial furnace heating elements, heavy‑duty electric kilns, ovens and power grid grounding resistors, while global buyers tap into India’s competitive pricing and strong nickel-alloy processing ecosystem .
High-quality NiCr 80:20 Plates ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP – NiCr 80:20 plate suppliers in Mumbai |
|---|---|
| Alloy | NiCr 80:20 (Alloy 80/20, Nichrome 80/20) |
| UNS Designation | UNS N06023 (Nichrome 80) |
| Product Form | Plates, sheets, strips, coils, custom‑cut blanks |
| Key Standards | ASTM B344 (resistance heating materials), DIN 2.4869, EN-based nickel plate specs (e.g. EN 10028-7, EN 10088 where applicable) |
| Max Recommended Service Temperature | Up to 1200°C in air/oxidizing atmospheres |
| Typical Surface Condition | Bright annealed or oxidized annealed for stable resistivity |
| Certification | MTC EN 10204 3.1, PMI, export documentation on request |
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
As NiCr 80:20 plate stockist in Mumbai, Aurico supports plate thickness typically from about 0.3 mm up to 20–30 mm (and higher on request), aligned with common nickel‑alloy plate ranges used under ASTM and EN standards . Widths of 1000–2000 mm and lengths from 2000–6000 mm are common, with custom cut NiCr 80:20 plate sizes offered for precision industrial laboratory equipment, furnace panels, and resistor bank assemblies .
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 & Physical Properties
| Property | Typical Value |
|---|---|
| 0.2% Yield Strength at 20°C | ≥ 280 MPa |
| Tensile Strength at 20°C | ≥ 650–700 MPa |
| Elongation (A5) | ≥ 30% |
| Electrical Resistivity at 20°C | ≈ 1.08–1.12 Ω·mm²/m (108–110 µΩ·cm) |
| Maximum Service Temperature (heating) | ≈ 1200°C (2190°F) |
| Thermal Conductivity at 20°C | ≈ 15 W/m·K |
| Modulus of Elasticity at 20°C | ≈ 200 kN/mm² |
Applications & Benefits
- Industrial Furnaces & Power: NiCr 80:20 plate suppliers in Mumbai serve industrial furnace heating elements, heavy‑duty electric kilns and ovens, and ASTM B344 NiCr 80:20 plates for load banks and high‑power resistor banks in power grid testing .
- Power & Heat Tracing: 80% Nickel 20% Chrome alloy plates are used in thermal power plant heat tracing systems, power grid grounding resistors and high-load rheostats in India, where high resistivity and oxidation resistance cut lifecycle cost versus steel‑based alloys.
- Chemical & Petrochemical: Corrosion resistant NiCr 80:20 plates support chemical vapor deposition (CVD) equipment, petrochemical catalyst support grids and high‑temperature chemical waste incinerators using UNS N06023 nickel alloy plates .
- Marine, Pharma & Oil & Gas: Marine grade NiCr 80:20 plates work in offshore platform immersion heaters, bitumen heating coils in refineries, pharmaceutical sterilization tunnel heaters, and durable alloy 80:20 plates for subsea flowline heating systems where stainless fails under repeated cycling .
- Sourcing & Standards: Verified NiCr 80:20 plate exporters in India provide EN 10204 3.1 certification, custom cut NiCr 80:20 plate sizes, and integration with broader nickel‑alloy plate standards such as ASTM B127/ASME SB127 for mixed material projects.
FAQ & Search Trends
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Conclusion
NiCr 80:20 Plates (UNS N06023) give procurement heads, engineers, fabricators, OEMs and hardware stores a high‑resistance, 1200°C‑rated heating alloy that delivers stable ohmic performance, superior oxidation resistance and longer element life than stainless or FeCrAl, backed by certified supply from Aurico Alloys LLP as a trusted NiCr 80:20 plates supplier, stockist and exporter from India to abroad . Are your most critical furnaces, resistor banks and offshore heaters protected by next‑generation NiCr 80:20 plates?