What You Need to Know About INCO 713, INCO 713C, and INCO 713LC

December 7, 2023

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The titanium market is thriving, with applications ranging from aerospace to medical implants to sports equipment. As a result, buyers and sellers of titanium alloys need to stay informed of the various types of materials available. One of the most popular titanium alloys on the market is INCO 713 and its variants, INCO 713C and INCO 713LC. In this blog post, we'll explore what these alloys are, how they differ, and their fundamental properties.

INCO 713 Titanium Alloy

INCO 713 is an aprecipitation-hardening (PH) titanium alloy renowned for its exceptional properties. Its high strength, excellent corrosion resistance, and superior welding properties have become a staple in the aerospace and marine industry. This remarkable alloy comprises titanium, aluminum, niobium, and trace amounts of other elements carefully selected to enhance its performance.

With an ultimate tensile strength (UTS) typically reaching 1,100 MPa and yield strength of approximately 800 MPa, INCO 713 is a testament to the advancements in material engineering. Its precise composition and meticulous manufacturing process ensure its reliability and durability in demanding applications.

From critical aircraft components to marine structures facing harsh environments, INCO 713 has proven its mettle time and time again, delivering unmatched performance and longevity. As technology advances, this titanium alloy continues to pave the way for innovation and progress in various industries.

INCO 713C Titanium Alloy

INCO 713C, a modified version of INCO 713, was specifically developed to address concerns about high-temperature performance in gas turbine engines. The "C" in its name stands for "creep-resistant," highlighting its exceptional ability to withstand prolonged exposure to high temperatures.

With a high-temperature strength of up to 600°C, INCO 713C exhibits remarkable durability even under extreme conditions. Its excellent fatigue resistance ensures reliable performance over extended periods of operation.

While sharing the same fundamental composition as INCO 713, INCO 713C incorporates minor modifications that optimize its creep resistance properties. This makes it ideal for critical aircraft engine components, including compressor discs and turbine blades. The the reliability and longevity of INCO 713C contribute to the efficient and safe operation of aircraft engines, ensuring optimal performance and enhanced safety in aviation.

INCO 713LC Titanium Alloy

INCO 713LC, similar to INCO 713C, is a highly-regarded creep-resistant titanium alloy known for its exceptional properties. This alloy, denoted by the "LC" for "low cycle fatigue," exhibits outstanding performance in high-stress, low-cycle fatigue applications. While its maximum operating temperature is slightly lower than INCO 713C, INCO 713LC stands out with remarkable corrosion resistance and increased strength at room temperature. The composition of this alloy closely resembles that of INCO 713 but with notable additions of molybdenum and silicon, further enhancing its properties. This combination of elements contributes to its exceptional attributes, making INCO 713LC widely used in gas turbine engine components, particularly in manufacturing compressor blades. Engineers and manufacturers value its remarkable performance and reliability, making it a highly sought-after choice in demanding engineering applications where durability and efficiency are paramount.

Critical Properties of INCO 713, INCO713C, and INCO 713LC

INCO 713 is a high-strength titanium for its exceptional corrosion resistance and impressive welding properties. It is widely utilized in various industries, including gas turbine engines, aircraft engines, and marine applications.

On the other hand, INCO713C boasts a high-temperature strength of up to 600°C, making it an ideal choice for applications that require excellent fatigue resistance under extreme thermal conditions.

Lastly, INCO 713LC stands out with its remarkable low-cycle fatigue resistance, good corrosion resistance, and high strength at room temperature. These properties make it a preferred option for critical components subjected to cyclic loading and harsh environmental conditions.

All three alloys are precipitation-hardening titanium alloys, which means they undergo heat treatment to enhance their mechanical properties further. This unique characteristic ensures these alloys exhibit improved performance and durability in demanding operating conditions.

Conclusion

INCO 713 and its variants, INCO 713C, and INCO 713LC, are highly sought-after titanium alloys known for their exceptional performance in various high-stress applications. These alloys have gained significant popularity, especially in the aerospace and marine markets, due to their remarkable strength, corrosion resistance, and excellent mechanical properties.

While all three alloys share similar compositions, they are uniquely designed to cater to specific needs and applications. INCO 713 is widely used in aerospace applications where high strength and toughness are crucial, while INCO 713C is preferred for marine applications that require superior resistance against seawater corrosion. On the other hand, INCO 713LC offers a combination of high strength, excellent weldability, and improved resistance to stress corrosion cracking.

Understanding the nuances and differences between these alloys is paramount for buyers and sellers in the industry. By being well-informed about each alloy's specific properties and intended uses, businesses buying and selling scrap metal, titanium, or recycled materials can make more informed decisions and ensure the best material choices for their unique requirements.