Nickel-chromium Alloys Flat Wire Cr30Ni70

Overview

Cr30Ni70 Nickel-Chromium Alloy Flat Wire delivers exceptional corrosion resistance and ultra-high temperature stability (up to 1250°C) with a high nickel content (70% Ni), tensile strength ≥780 MPa, and low resistivity (1.05 μΩ·m at 20°C). Featuring customizable surface finishes (bright annealed/pickled) and precision dimensions (thickness 0.1-12mm, width 5-200mm), it is engineered for chemical processing, industrial furnaces, aerospace, and new energy applications under extreme conditions.

Limiting Chemical Composition, %

Chromium..................................................................................................................................30.0

Aluminum..................................................................................................................................70.0

Fe & trace elements

Main Properties

Material Characteristics

Material Properties

● Ultra-High Temp & Creep Resistance:

Stable operation at 1100~1250°C with superior creep resistance.

● High-Nickel Corrosion Resistance:

Resists acids, alkalis, and salt spray corrosion.

● Low Resistivity & High Efficiency:

1.05 μΩ·m (20°C) for energy-saving performance.

● Custom Surface Finish:

Bright annealed, pickled, brushed, or polished.

Core Advantages

● Broad Sizing Range:

Thickness 0.1-12mm, width 5-200mm (±0.01mm tolerance).

● Self-Healing Oxide Layer:

Extends lifespan in high-temperature applications.

● Eco-Certified:

Compliant with RoHS, REACH, ISO 9001, and AS9100.

Typical Applications

● Chemical Equipment:

Acid bath heaters, corrosive gas reactor elements.

● Industrial Furnaces:

Sintering furnace ribbons, metal heat treatment wires.

● Aerospace:

Rocket nozzle heaters, high-temp test bench modules.

● New Energy:

Nuclear heating systems, energy storage thermal controls.

Technical Specifications