Hastelloy C-4/NS335/NS3305/N06455/2.4610/NiMo16Cr16Ti Alloy Bar For Harsh Chemical Processing

Hastelloy C-4 (NS335, NS3305, N06455, 2.4610, NiMo16Cr16Ti) is a nickel-molybdenum-chromium alloy known for its exceptional resistance to high-temperature oxidation and aggressive chemical environments. This alloy offers superior stability at elevated temperatures (up to 1038°C) and excellent corrosion resistance in strong oxidizing and reducing conditions, making it ideal for chemical processing, power plants, and aerospace applications.

With a high molybdenum and chromium content, Hastelloy C-4 resists pitting, stress corrosion cracking, and crevice corrosion. It also has enhanced weldability and thermal stability due to its controlled carbon and silicon content. Common forms include bars, sheets, plates, and pipes, used in reactors, heat exchangers, and acid production equipment.

This alloy is particularly valued for its mechanical strength and oxidation resistance in extreme conditions, ensuring long-term durability in harsh environments. Hastelloy C-4 bars are widely used in industries requiring high performance and corrosion resistance.

Trade Code

Hastelloy C-4 (also known as NS335, NS3305, N06455, 2.4610, and NiMo16Cr16Ti) is a nickel-based corrosion-resistant alloy with excellent properties. Here are its key features:

Key Features of Hastelloy C-4 Alloy Bar:

• Exceptional Corrosion Resistance

Excellent resistance to a wide range of severe chemical environments, including strong oxidizers and reducing agents.

Superior resistance to pitting, crevice corrosion, and stress corrosion cracking.

Excellent performance in high-temperature and acidic environments, especially in nitric acid, sulfuric acid, and phosphoric acid.

• High-Temperature Stability

Maintains mechanical integrity and corrosion resistance up to approximately 1038°C (1900°F).

Reduced tendency for grain boundary precipitation, making it ideal for high-temperature applications.

• Excellent Mechanical Properties

High strength, toughness, and good ductility.

Good weldability with minimal risk of intergranular corrosion after welding.

• Chemical Composition (Approximate values)

Nickel (Ni): Base (≈60%)

Molybdenum (Mo): 15-17%

Chromium (Cr): 14-18%

Iron (Fe): ≤3%

Titanium (Ti): 0.01-0.08%

Other elements: Carbon (C), Silicon (Si), Manganese (Mn), Cobalt (Co), etc. in controlled amounts.

Hastelloy C-4 (also known as NS335, NS3305, N06455, 2.4610, and NiMo16Cr16Ti) is a nickel-molybdenum-chromium alloy with excellent corrosion resistance, particularly in strong oxidizing and reducing environments. It offers superior thermal stability and resistance to stress corrosion cracking, making it ideal for high-temperature and aggressive chemical applications.

Applications of Hastelloy C-4 Alloy Bars

• Chemical Processing Industry

Used in heat exchangers, reactors, piping, and pressure vessels exposed to corrosive chemicals like sulfuric, hydrochloric, and phosphoric acids.

Ideal for environments with oxidizing and reducing agents, such as nitric acid production.

• Pharmaceutical and Food Processing

Components in equipment requiring high corrosion resistance and sanitary conditions.

Used in bio-processing reactors and sterilization systems.

• Aerospace and Marine Industries

Engine components and exhaust ducts subjected to extreme temperatures and corrosive atmospheres.

Marine environments where resistance to seawater and harsh chemicals is required.

• Power Generation

Used in nuclear power plants for components exposed to radioactive and highly corrosive conditions.

Gas turbines, boilers, and flue gas scrubbers.

• Pollution Control and Waste Treatment

Employed in scrubbers, ducts, and incinerators handling aggressive industrial waste gases.

Flue gas desulfurization systems in coal-fired power plants.

• Heat Exchangers and Piping Systems

Used in high-temperature heat exchangers and piping for handling hot, corrosive fluids.

Suitable for applications involving chlorinated or contaminated environments.

• Medical and Laboratory Equipment

Utilized in medical implants and devices where high corrosion resistance is necessary.

Used in laboratory equipment for handling harsh chemicals and acids.

Hastelloy C-4’s ability to maintain mechanical integrity in extreme conditions makes it a go-to material for industries demanding high-performance corrosion-resistant alloys.