Hastelloy® C2000 (UNS N06200) High-Temperature Corrosion-Resistant Bar Stock

1. Performance Characteristics

1.1 Chemical Composition Advantages

Hastelloy C2000 is based on nickel (approximately 55%-65%), with added elements such as chromium (22%-24%), molybdenum (15%-17%), and copper (1.3%-1.9%). The high chromium content enhances oxidation resistance, while molybdenum improves corrosion resistance in reducing media. The addition of copper significantly improves its stability in reducing acids such as sulfuric acid. The low carbon content (≤0.010%) effectively reduces the risk of intergranular corrosion.

1.2 Physical and Mechanical Properties

Strength and Plasticity: Tensile strength reaches 690 MPa, yield strength 310 MPa, and elongation 40%, combining high strength with excellent plasticity.

Thermal Stability: Thermal conductivity is 9.1 W/(m·K), specific heat capacity is 427 J/kg·K, and performance can be maintained at temperatures above 540°C.

Machinability: Suitable for hot rolling, forging, and other processes, but requires low-speed cutting to minimize work hardening.

1.3 Corrosion Resistance

Universal Corrosion Resistance: Excellent in both oxidizing (such as nitric acid) and reducing (such as hydrochloric acid and sulfuric acid) media, particularly suitable for complex mixed environments.

Localized Corrosion Resistance: Highly resistant to pitting and crevice corrosion, suitable for environments containing chloride ions.

2. Main Applications

2.1 Chemical and Petroleum Industries

Used in the manufacture of reactors, heat exchangers, valves, and pipelines, handling corrosive media such as strong acids and alkalis. In oil production, suitable for high-temperature and high-pressure components such as drilling equipment.

2.2 Marine Engineering

Used in seawater cooling systems, deep-sea pipelines, and drilling platforms, withstanding seawater corrosion and high-pressure environments.

2.3 Energy and Environmental Protection

Nuclear Energy: Used in the manufacture of nuclear reactor fuel rod casings, resistant to radiation corrosion.

Environmental Protection Equipment: Used in sewage treatment plants and exhaust gas treatment systems to combat acidic exhaust gas corrosion.

2.4 Other Applications

Aerospace: High-temperature components such as combustion chamber parts.

Electronics and Pharmaceuticals: Precision instruments and pharmaceutical equipment require high cleanliness and corrosion resistance.

Hastelloy C2000, with its all-round corrosion resistance and high-temperature strength, is an ideal material choice for extreme operating conditions.