Nickel-chromium Alloys Electrothermal strip Cr30Ni70

Overview

Cr30Ni70 Nickel-Chromium Alloy Electrothermal Strip is a premium heating element engineered for ultra-high temperatures and corrosive environments. With an enhanced composition of 30% chromium (Cr) and 70% nickel (Ni), it delivers industry-leading corrosion resistance, high-temperature oxidation resistance (1300°C+), and exceptional durability. Ideal for chemical reactors, semiconductor processing, nuclear energy systems, and other demanding applications, ensuring reliable thermal performance. Custom dimensions, shapes, and power outputs available for extreme operational conditions.

Limiting Chemical Composition, %

Chromium(Cr)..................................................................................................................................30.0

Aluminum(Ni)..................................................................................................................................70.0

Balance Iron (Fe) & Trace Elements

Main Properties

Material Characteristics

Material Properties

● Extreme Temperature Resistance:

Continuous use at 1350°C, peak 1400°C.

● Superior Corrosion Resistance:

High chromium content resists acids, alkalis, and halogens.

● Stable Resistivity:

1.45±0.04 Ω·mm²/m for consistent performance.

● Mechanical Strength:

High creep and fatigue resistance under extreme heat.

Core Advantages

● Extreme Environment Adaptability:

40% better corrosion resistance than Cr20Ni80.

● Zero Thermal Drift:

No resistivity degradation over time.

● Multi-Environment Compatibility:

Stable in vacuum, oxidizing, and reducing atmospheres.

● Rapid Customization:

Laser cutting and precision welding for complex designs.

Typical Applications

● Chemical Industry:

High-pressure reactors, chlor-alkali electrolysis heaters.

● Semiconductor:

Wafer epitaxy furnaces, CVD/PVD heating systems.

● Nuclear Energy:

Reactor auxiliary heating, waste treatment systems.

● Aerospace:

Rocket engine test benches, wind tunnel heating strips.

Technical Specifications