Alloy C276 (UNS N10276) exhibits outstanding resistance in a wide range of chemical environments, including highly oxidizing, reducing media, and chloride-containing environments. Its composition is specifically designed to minimize the risk of intergranular corrosion and has excellent resistance to stress corrosion cracking, making it an ideal material choice for extreme corrosive conditions. Alloy C276 is typically used in its annealed state to ensure optimal corrosion resistance and toughness.

Alloy 22 (UNS N06022) exhibits outstanding corrosion resistance and performs exceptionally well in various extreme corrosive environments. It contains a high content of chromium and molybdenum, providing excellent oxidation resistance and resistance to pitting and crevice corrosion, as well as good resistance to chloride stress corrosion cracking. The composition of this alloy is well balanced, enabling it to maintain excellent stability and corrosion resistance even in the annealed state. It is one of the important representatives of high-performance corrosion-resistant materials.

Alloy 20 (UNS N08020) contains molybdenum and copper and has excellent corrosion resistance, particularly showing outstanding stability in medium-concentration sulfuric acid environments. This alloy achieves this by adding niobium to stabilize the carbide structure and reduce the tendency of intergranular corrosion. In the annealed state, it possesses good toughness and weldability. Its comprehensive performance makes it one of the commonly used corrosion-resistant materials in the chemical industry.

Alloy B-2 (UNS N10665) has an extremely high molybdenum content, which endows it with outstanding resistance to reducing acid corrosion, especially excellent resistance to hydrochloric acid and sulfuric acid. This alloy enhances its corrosion resistance and weldability by controlling the content of impurity elements such as iron, silicon, and carbon, while reducing the risk of intergranular corrosion. When used in the annealed state, Alloy B-2 can provide excellent corrosion resistance and good toughness.

Alloy B-3 (UNS N10675) is a nickel-molybdenum alloy, an improved version of Alloy B-2. It has a higher molybdenum content and a lower carbon content, thereby providing superior resistance to reducing acid corrosion, especially in terms of its corrosion resistance to hydrochloric acid. By further reducing the content of impurity elements such as carbon and silicon, Alloy B-3 enhances its resistance to intergranular corrosion and improves the stability of the material during welding and manufacturing processes. Compared to B-2, it maintains excellent corrosion resistance while also improving processing characteristics and long-term thermal stability.

Alloy 400 (UNS N04400) is a nickel-copper alloy with excellent corrosion resistance, capable of maintaining stability in various media such as seawater, hydrofluoric acid, and other non-oxidizing acids. This alloy ensures good mechanical properties and corrosion resistance by adjusting the ratio of nickel and copper. It also contains small amounts of iron, manganese, and other elements to enhance its processing performance. Alloy 400 performs exceptionally well over a wide temperature range, not only being resistant to corrosion but also having good cold workability and weldability, enabling it to maintain excellent toughness and stability even in extreme conditions.

Alloy K500 (UNS N05500) is a precipitation-hardening alloy based on Alloy 400 (a nickel-copper alloy) with the addition of aluminum and titanium. This combination not only retains the excellent corrosion resistance of the nickel-copper alloy but also forms the γ' phase (Ni₃(Al,Ti)) in the alloy through aging treatment, thereby significantly enhancing the strength and hardness of the material. Therefore, Alloy K500 has outstanding mechanical properties, such as enhanced tensile strength and wear resistance, while maintaining good toughness. Its composition design aims to improve the overall performance of the material, enabling it to exhibit excellent corrosion resistance and mechanical properties in harsh environments.

Alloy 625 (UNS N06625) is a nickel-chromium-molybdenum alloy that contains a significant proportion of chromium and molybdenum, as well as a small amount of niobium and tantalum. These elements give it outstanding corrosion resistance and high-temperature strength. This alloy enhances its resistance to pitting and crevice corrosion in chloride ion environments by forming a stable oxide film. It also has excellent resistance to oxidation and reduction media. Alloy 625 maintains good mechanical properties at high temperatures and its composition design ensures excellent weldability and machinability, making it exhibit excellent stability and reliability in extreme environments. Additionally, its performance can be further enhanced through solid solution strengthening or precipitation hardening.

Alloy 718 (UNS N07718) is a precipitation-hardening type nickel-chromium-iron alloy that contains a significant proportion of chromium, molybdenum, niobium, and titanium. Alloy 718 not only possesses excellent mechanical properties, such as high strength and good toughness, but also remains stable over a wide temperature range. Its composition is specially designed to reduce the carbon content to avoid embrittlement, and elements such as aluminum and titanium are added to promote the formation of strengthening phases, making this material exhibit outstanding creep resistance and stability in extreme environments. Additionally, it also has good weldability and machinability.

Titanium Grade 2 (UNS R50400) is an industrial pure titanium known for its outstanding comprehensive properties, including excellent corrosion resistance, excellent formability and weldability. It contains a small amount of impurity elements such as oxygen, nitrogen, carbon and iron. These components help enhance the material's strength while maintaining high ductility and toughness. Titanium Grade 2 performs well over a wide temperature range, not only resisting the erosion of various corrosive media but also having a relatively low density and good mechanical properties, making it an ideal choice for applications requiring high corrosion resistance and good machinability. This grade of titanium is usually in a annealed state to ensure the best corrosion resistance and operational performance.