FeCrAl 0Cr21Al6 Resistance Wire for Extreme Heat & Corrosive Environments | ASTM-Compliant

Description

FeCrAl 0Cr21Al6 resistance wire delivers unmatched performance in high-temperature applications (up to 1250°C) with superior oxidation resistance. Ideal for industrial heaters, chemical reactors, and energy systems.

Product Overview

FeCrAl 0Cr21Al6 resistance wire is an advanced iron-chromium-aluminum alloy optimized for stability in aggressive thermal and chemical conditions. Comprising 21% chromium (Cr) and 6% aluminum (Al), this alloy develops a robust alumina (Al₂O₃) oxide layer when exposed to heat, ensuring exceptional resistance to oxidation, sulfidation, and chlorine-induced corrosion. With a service temperature range of 200°C to 1250°C, it outperforms conventional Ni-Cr alloys in prolonged high-heat scenarios, particularly in sulfur-rich or acidic atmospheres common in petrochemical and power generation industries.

The alloy’s low resistivity drift (1.40 μΩ·m at 20°C) guarantees consistent electrical performance, while its high tensile strength (≥600 MPa) and ductility allow seamless fabrication into coils, heating elements, and precision thermocouples. Compliant with ASTM B603, DIN 17471, and JIS C2520, FeCrAl 0Cr21Al6 is engineered for global adaptability—suitable for Middle Eastern oil refineries, Southeast Asian semiconductor plants, and European renewable energy systems. Its lightweight density (7.0 g/cm³) further enhances cost-efficiency in aerospace and automotive sensor applications.

Technical Specifications

Chemical Composition

Mechanical Properties

Physical Parameters

Standards Compliance

• ASTM B603: Electrical Resistance Alloys

• DIN 17471: High-Temperature Material Specifications

• JIS C2520: Japanese Industrial Standards

Applications

• Energy Sector: Heating elements in boilers, nuclear reactors, and geothermal systems.

• Chemical Processing: Corrosion-resistant coils for acid baths and reactors.

• Automotive: Exhaust gas recirculation (EGR) sensors and glow plugs.

• Consumer Appliances: Durable heating coils in industrial dryers and ovens.

• Aerospace: Lightweight wiring for high-temperature avionics.

FAQs

Q1: How does FeCrAl 0Cr21Al6 compare to Kanthal alloys?
A: FeCrAl 0Cr21Al6 offers higher aluminum content for better oxidation resistance at lower costs, ideal for sulfur-rich or cyclic heating environments.

Q2: What is the recommended maximum operating temperature?
A: 1250°C in oxidizing atmospheres. For reducing environments (e.g., hydrogen-rich), limit to 1000°C to prevent embrittlement.

Q3: Can this wire be used in marine environments?
A: Yes, its high chromium content resists chloride-induced pitting, making it suitable for offshore platforms and desalination systems.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.