HASTELLOY® C-276 is a highly versatile corrosion-resistant alloy widely used in demanding industrial environments. Known for its exceptional resistance to oxidizing and reducing agents, this nickel-molybdenum-chromium alloy is engineered to withstand severe chemical attack and high temperatures. The alloy’s balanced composition and microstructure provide outstanding durability and longevity, making it a preferred choice in industries where reliability is critical. Notably, the UNS N10276 grade, commonly referred to as hastelloy c276, combines strength with excellent fabricability, supporting various manufacturing processes such as welding and forming without compromising material integrity. Its comprehensive corrosion resistance ranges from oxidizing acids like nitric acid to reducing agents including hydrochloric acid, positioning it as an indispensable material for chemical processing applications.

江苏宝辰镍合金有限公司 (Jiangsu Baochen Nickel Alloy Co., Ltd) specializes in producing high-performance nickel alloys, including HASTELLOY® C-276, serving industries such as aerospace, petrochemical, and nuclear sectors. The company’s expertise ensures that product quality complies with international standards and meets stringent performance requirements. Manufacturers rely on these alloys not only for their superior chemical resistance but also for mechanical robustness and thermal stability, which are critical in high-demand industrial environments. For businesses seeking tailored specialty alloys, 江苏宝辰镍合金有限公司 offers customized solutions to optimize application-specific performance, thereby enhancing operational efficiency and safety.

The chemical composition of HASTELLOY® C-276 is uniquely formulated to deliver outstanding corrosion resistance and mechanical strength. The primary elements include nickel (Ni), molybdenum (Mo), chromium (Cr), iron (Fe), with minor amounts of cobalt, manganese, and carbon. Typically, nickel accounts for the majority of the alloy, usually around 57%, providing the fundamental corrosion resistance framework. Chromium, present at approximately 15%, enhances resistance to oxidation and strengthens the alloy at elevated temperatures. Molybdenum, at 15-17%, is crucial for resisting localized corrosion such as pitting and crevice corrosion, especially in chloride-containing environments.

Other elements such as iron (5-7%) improve mechanical properties and cost-efficiency without sacrificing corrosion resistance. The control of carbon content is essential to prevent carbide precipitation during welding and high-temperature exposures. The chemical composition is carefully maintained to align with the UNS N10276 standard, ensuring consistency in performance for critical components like hastelloy c276 pipe and fittings. This alloy's chemical makeup allows it to thrive in hostile environments, including acidic and oxidizing conditions, making it ideal for chemical processing, pollution control, and power generation industries.

HASTELLOY® C-276 exhibits several physical properties that complement its chemical robustness, making it suitable for a range of industrial applications. The alloy has a density of approximately 8.9 g/cm³, which reflects its nickel-rich composition. This density strikes a balance, providing sufficient strength without excessive weight, an important factor in applications requiring structural integrity with manageable mass. The thermal conductivity of C-276 is relatively low, around 7.2 W/m·K at room temperature, which aids in maintaining stability under thermal stress and reducing heat transfer in high-temperature environments.

Its coefficient of thermal expansion is moderate, typically about 13.1 µm/m·°C, allowing it to withstand temperature fluctuations without significant dimensional changes. These characteristics, combined with good electrical resistivity, make hastelloy c276 an excellent candidate for heat exchangers, pressure vessels, and piping systems exposed to elevated temperatures. Furthermore, the alloy maintains good oxidation resistance up to approximately 1200°F (650°C), providing extended service life in harsh thermal environments. Understanding these physical properties is vital for engineers and designers to optimize component performance and ensure operational reliability.

Mechanical strength is a critical factor in evaluating HASTELLOY® C-276 for industrial use. The alloy demonstrates excellent tensile and yield strength, which vary depending on the amount of cold work applied during fabrication. For example, in the annealed condition, the tensile strength typically ranges around 75 ksi (515 MPa), with a yield strength near 35 ksi (240 MPa). Cold working the material by 20-40% can significantly enhance these values, with tensile strength reaching upwards of 110 ksi (760 MPa) and yield strength exceeding 90 ksi (620 MPa).

This increase in strength due to work hardening allows for more demanding structural applications where high resistance to deformation and fatigue is required. Notably, even with increased strength, HASTELLOY® C-276 retains its excellent corrosion resistance, which is often a challenge with other alloys. The elongation percentage remains reasonably high, ensuring the alloy can undergo forming and shaping processes without cracking. These mechanical properties make it suitable for use in pressure-containing parts, reactor vessels, and piping systems that experience mechanical stress and cyclic loading.

Due to its superior corrosion resistance and mechanical strength, HASTELLOY® C-276 is used extensively across a variety of demanding industries. It is highly favored in chemical processing plants, especially for components exposed to oxidizing and reducing chemicals such as sulfuric acid, hydrochloric acid, and chlorine. The alloy’s resistance to pitting and crevice corrosion makes it ideal for heat exchangers, reactors, and piping systems where durability is essential.

In the power generation sector, HASTELLOY® C-276 is used in components subjected to high temperatures and corrosive steam environments, including boiler tubes and turbine parts. The aerospace and nuclear industries also benefit from its exceptional properties for manufacturing components requiring long-term performance under stress and corrosive conditions. Furthermore, the alloy’s fabricability allows it to be formed into pipes, sheets, and plates, such as hastelloy c276 pipe, supporting diverse engineering solutions. 江苏宝辰镍合金有限公司 supplies these high-quality specialty alloys, supporting industries requiring reliable and customized alloy products to meet specific operational challenges.

In summary, HASTELLOY® C-276 stands as a benchmark alloy for corrosion resistance, mechanical strength, and thermal stability in harsh industrial environments. Its carefully balanced chemical composition featuring nickel, molybdenum, and chromium equips it to withstand oxidative and reductive chemical attacks, making it indispensable in chemical processing, power generation, aerospace, and nuclear industries. The alloy’s physical and mechanical properties ensure reliability under thermal and mechanical stresses, while its fabricability supports versatile manufacturing needs.

As one of the premier suppliers of high-performance specialty alloys, 江苏宝辰镍合金有限公司 plays a vital role in delivering HASTELLOY® C-276 products that meet rigorous international standards such as UNS N10276. Businesses seeking durable, corrosion-resistant alloy solutions can rely on their expertise and product range, including hastelloy c276 pipe and other forms, ensuring optimal performance and longevity. For more information on their capabilities and product offerings, visiting the Products page is recommended, alongside exploring the company’s manufacturing processes detailed on their Production line page.