Introduction
Martensitic stainless steel S44080 8Cr17 is a ferrite-martensitic stainless steel which is a combination of both ferritic and martensitic steels. It is a low carbon steel with high chromium content, making it an excellent material for many applications. Its outstanding wear resistance, good formability, and low cost make it an ideal choice for many industries. It is used extensively in the manufacture of products including automotive parts, household appliances, and pipes and fittings.
Chemical Composition
Martensitic stainless steel S44080 8Cr17 is composed of Chromium (Cr) 17-19%, Molybdenum (Mo) 0.5-1%, Manganese (Mn) 0-1%, Nickel (Ni) 0.5-1%, Phosphorus (P) ≤0.04%, Silicon (Si) 0-1%, Sulfur (S) ≤0.03%, Carbon (C) ≤ 0.08%, and Iron (Fe) balance. The chemical composition of S44080 8Cr17 makes it a strong, work-hardening material which is highly resistant to corrosion.
Fig. 1 - Chemical Composition of S44080 8Cr17
Properties
S44080 8Cr17 is a high-chromium-containing martensitic stainless steel, which makes it highly resistant to corrosion. Its high content of chromium makes it resistant to common forms of corrosion, such as pitting and crevice corrosion. It also has outstanding mechanical properties, such as good formability and high strength. The high chromium content also allows it to be work-hardened, and it can also be heat-treated to increase strength and hardness.
The machinability of martensitic stainless steel S44080 8Cr17 is similar to other martensitic steels, with generally good results obtained when using conventional machining methods without the use of additives. However, due to the higher hardness of S44080 8Cr17, cutting rates may be lower than those of other martensitic steels.
Applications
Due to its excellent corrosion resistance, reduction of wear and formability, martensitic stainless steel S44080 8Cr17 is used for a variety of applications. It is widely used in the automotive industry for parts such as engine blocks, exhaust systems, drive shafts, wheels, and suspension components. It is also used in the manufacture of household appliances such as washing machines and refrigerators, and its low cost makes it an attractive option for many industries.
Conclusion
Martensitic stainless steel S44080 8Cr17 is a strong, work-hardening material with an excellent combination of properties which make it an ideal choice for many industries. It is composed of chromium, molybdenum, manganese, nickel, phosphorus, silicon, sulfur, carbon, and iron, making it highly resistant to corrosion, and it can also be heat-treated to increase its strength and hardness. It is widely used in the automotive and household appliance industries, and its low cost makes it a particularly attractive choice.
