0Cr27Al7Mo2 Resistance Wire – Advanced Fe-Cr-Al-Mo Alloy for Extreme Heat & Aggressive Environments

Description

0Cr27Al7Mo2 resistance wire is a premium iron-chromium-aluminum-molybdenum (Fe-Cr-Al-Mo) alloy engineered for ultra-high temperature applications requiring exceptional oxidation resistance, mechanical stability, and longevity in corrosive atmospheres. With a composition of 26–28% chromium, 6.5–7.5% aluminum, 1.5–2.5% molybdenum, and balanced iron, this alloy forms a robust alumina (Al₂O₃) layer at temperatures up to 1,500°C (2,732°F), delivering unparalleled protection against oxidation, carburization, and sulfidation in sulfur-rich, chlorine-laden, or reducing environments. The addition of molybdenum enhances creep resistance and minimizes intergranular corrosion, making it ideal for industrial furnaces, petrochemical reactors, and aerospace systems.

Certified to GB/T 1234 and DIN 17470 standards, 0Cr27Al7Mo2 wire achieves a tensile strength of 650–800 MPa and a surface load capacity of 2.5 W/cm², outperforming conventional Fe-Cr-Al alloys in extreme thermal cycles. Its high electrical resistivity (1.50 μΩ·m) and low thermal expansion coefficient (14.0×10⁻⁶/°C) ensure energy efficiency and dimensional stability, reducing operational costs in high-stress applications such as glass manufacturing, hydrogen production, and advanced nuclear reactors.

Technical Specifications (Table)

Applications

1. Industrial Furnaces: Heating elements for glass melting tanks, ceramic sintering, and steel annealing.

2. Petrochemical: Ethylene cracker tubes, sulfur recovery units (SRUs), and hydrogen reformers.

3. Aerospace: Combustion chamber liners, turbine exhaust components, and rocket engine igniters.

4. Energy Production: Hydrogen electrolyzers, nuclear reactor heat exchangers, and syngas reactors.

5. Chemical Processing: Reactors handling molten salts, chlorinated hydrocarbons, and sulfuric acid.

Q&A

Q1: How does molybdenum enhance 0Cr27Al7Mo2’s performance compared to standard Fe-Cr-Al alloys?
A: Molybdenum improves high-temperature creep resistance, reduces sulfur-induced embrittlement, and enhances corrosion resistance in chloride-rich environments.

Q2: What is the maximum continuous operating temperature in reducing atmospheres?
A: 1,400°C in reducing or vacuum environments, with optimal performance in hydrogen or inert gases.

Q3: Is pre-oxidation required for new heating elements?
A: Yes. Heat treatment at 1,000–1,100°C for 1–2 hours accelerates alumina layer formation, extending service life by up to 50%.

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.