Hastelloy C-4 Rod – Premium Nickel-Chromium-Molybdenum Alloy for Harsh Chemical Environments

Hastelloy C-4 rod (UNS N06455) is a high-performance nickel-chromium-molybdenum alloy renowned for its exceptional resistance to a wide range of aggressive chemicals, including hydrochloric acid, sulfuric acid, and chlorides. Its microstructural stability ensures resistance to sensitization during welding, making it ideal for critical applications in chemical processing, pollution control, and high-temperature systems.​

Chemical Composition (ASTM B574)

Mechanical Properties (Annealed)

Physical Properties

Standards & Product Forms

Applications

Hastelloy C-4 rod is ideal for:​

• Chemical reactors and heat exchangers

• Pollution control equipment

• Pharmaceutical manufacturing systems

• High-temperature piping and valves

• Desulfurization units​

FAQs

Q1: What makes Hastelloy C-4 rod suitable for chemical processing applications?

A1: Its high chromium and molybdenum content provide excellent resistance to a wide range of corrosive environments, including hot contaminated mineral acids and chlorides. ​

Q2: How does Hastelloy C-4 rod perform under high temperatures?

A2: The alloy maintains its mechanical strength and resistance to oxidation at elevated temperatures, making it suitable for high-temperature applications up to 400°C (750°F). ​

Q3: Is Hastelloy C-4 rod weldable?

A3: Yes, it can be welded using standard techniques such as GMAW, GTAW, and SMAW without concerns of sensitization.

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.