FeCrAl 0Cr21Al6Nb High-Temperature Resistance Wire | Corrosion-Resistant Alloy for Industrial Heating

Description

FeCrAl 0Cr21Al6Nb resistance wire combines exceptional heat resistance (up to 1300°C) with enhanced corrosion protection. Ideal for chemical processing, power generation, and aerospace applications.

Product Overview

FeCrAl 0Cr21Al6Nb resistance wire is a niobium-enhanced iron-chromium-aluminum alloy designed for extreme thermal and corrosive environments. With 21% chromium (Cr), 6% aluminum (Al), and 0.5-1.2% niobium (Nb), this advanced alloy forms a dense, self-healing alumina (Al₂O₃) oxide layer under high temperatures, delivering unmatched resistance to oxidation, sulfidation, and chlorine-induced degradation. The addition of niobium enhances grain stability and creep resistance, enabling prolonged operation at 1300°C in oxidizing atmospheres and up to 1100°C in reducing environments, such as hydrogen-rich or carburizing conditions.

Its optimized electrical resistivity (1.38 μΩ·m at 20°C) ensures consistent performance in industrial heaters, thermocouples, and semiconductor manufacturing equipment. Compliant with ASTM B603, DIN 17472, and JIS C2530, the alloy’s mechanical properties—including a tensile strength of 650-750 MPa and elongation of ≥18%—support rigorous fabrication into coils, mesh, and precision components. Engineered for global adaptability, FeCrAl 0Cr21Al6Nb meets the demands of Middle Eastern refineries, Southeast Asian electronics plants, and European renewable energy systems, offering superior lifecycle cost efficiency.

Technical Specifications

Chemical Composition

Mechanical Properties

Physical Parameters

Standards Compliance

• ASTM B603: Rolled Electrical Alloys

• DIN 17472: High-Temperature Material Specifications

• JIS C2530: Japanese Resistance Alloy Standards

Applications

• Chemical Processing: Heating elements in acid baths, chlorine reactors, and sulfur recovery units.

• Power Generation: Boiler components, nuclear reactor sensors, and geothermal heating systems.

• Aerospace: High-stress wiring for jet engine sensors and avionics.

• Automotive: Durable glow plugs and exhaust gas sensors for emission control.

• Electronics: Precision heating coils in semiconductor deposition systems.

FAQs

Q1: How does niobium improve FeCrAl 0Cr21Al6Nb’s performance?
A: Niobium enhances high-temperature strength, reduces grain growth, and improves resistance to thermal fatigue, ideal for cyclic heating applications.

Q2: What environments should be avoided with this alloy?
A: Avoid prolonged exposure to fluorine or alkaline melts, which can degrade the protective oxide layer.

Q3: Is this wire suitable for vacuum furnace applications?
A: Yes, it performs well in vacuum or inert atmospheres up to 1300°C due to its stable alumina layer.

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.