Nickel-chromium Alloys Flat Strip Cr30Ni70

Overview

Cr30Ni70 Nickel-Chromium Alloy Strip is an advanced alloy with 30% chromium and 70% nickel, designed for extreme high-temperature, corrosive environments, and high mechanical strength applications. It delivers superior oxidation resistance (stable up to 1300°C), resistance to sulfide/chloride corrosion, and high-temperature durability. Ideal for nuclear power systems, chemical reactors, and aerospace components. Customizable thickness (0.05-12mm) and width (5-1500mm) for critical industrial applications.

Limiting Chemical Composition, %

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

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

Balance Iron (Fe) & Trace Elements

Main Properties

Material Characteristics

Material Properties

● Ultra-High Temperature Resistance:

Continuous operation below 1300°C with self-healing Cr₂O₃ layer.

● Extreme Corrosion Resistance:

Resists concentrated acids, molten salts, and chlorine gas at high temperatures.

● High-Temperature Strength:

Maintains ≥400 MPa tensile strength at 1150°C with exceptional creep resistance.

Core Advantages

● Extreme Environment Adaptability:

First choice for nuclear reactors and deep-sea equipment.

● Extended Service Life:

50% longer lifespan than conventional alloys, reducing TCO.

● Advanced Processing:

Supports laser cutting, vacuum brazing, and precision shaping.

Typical Applications

● Nuclear Power

Reactor coolant pipes, nuclear waste container linings, fuel rod supports.

● Chemical & Energy

Acid regeneration units, molten salt storage, oil cracking reactors.

● Aerospace

Rocket nozzle linings, hypersonic vehicle thermal shields.

Technical Parameters