2.4617 Hastelloy B2 Rod – Ideal Material for Acidic Chemical Applications

Hastelloy B2 (UNS N10665, Werkstoff No. 2.4617) is a high-performance nickel-molybdenum alloy renowned for its exceptional resistance to reducing acids, including hydrochloric, sulfuric, acetic, and phosphoric acids. Its unique composition and microstructure make it an ideal choice for critical applications in chemical processing, pharmaceutical manufacturing, and petrochemical industries.​

Chemical Composition

Mechanical Properties

Physical Properties

ASTM Specifications

Applications

Hastelloy B2 Rod is extensively used in:​

• Chemical reactors and heat exchangers

• Piping systems handling hydrochloric acid

• Pharmaceutical manufacturing equipment

• Pollution control systems

• Pickling and acid cleaning operations

Corrosion Resistance

Hastelloy B2 exhibits:​

• Outstanding resistance to hydrochloric acid at all concentrations and temperatures

• Excellent resistance to sulfuric, acetic, and phosphoric acids

• Superior resistance to hydrogen chloride gas

• Exceptional resistance to pitting, stress corrosion cracking, and crevice corrosion

• Resistance to knife-line and weld heat-affected zone attack​

However, it should not be used in oxidizing environments or where oxidizing contaminants are present in reducing media, as this can lead to rapid corrosion and premature failure. ​

FAQs

1. What is Hastelloy B2?

Hastelloy B2 is a nickel-molybdenum alloy designed for exceptional resistance to reducing acids and aggressive chemical environments.

2. What are the mechanical properties of Hastelloy B2?

Hastelloy B2 offers high tensile strength (min 760 MPa), yield strength (min 350 MPa), and elongation (min 40%), making it suitable for demanding applications.​

3. What industries use Hastelloy B2 Rod?

Industries such as chemical processing, pharmaceuticals, petrochemicals, and pollution control utilize Hastelloy B2 Rod for its superior corrosion resistance.

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.