1Cr17 Summary
1Cr17 is an advanced magnesium chromium-containing stainless steel, commonly known as 4Cr17. It is an iron-based alloy that contains chromium, manganese, and magnesium, as well as other alloys. 1Cr17 steels are popularly used in a variety of industries, especially in areas where strength, durability, and corrosion resistance are desired.
History & Properties
1Cr17 was first developed in China in 1999, and has been widely produced since then. It belongs to the “400” series of steels, which are austenitic, characterized by their corrosion resistance. 1Cr17 is not magnetic and has an excellent temperature tolerance, so it is often used in applications where temperatures rise above 150°C (302°F). Its chemical composition consists of C ≤ 0.12%, Si ≤ 0.35%, Mn ≤ 0.60%, Cr 14.0–16.0%, and Ni ≤ 0.30%.
Applications
1Cr17 has strong corrosion resistance and excellent mechanical properties. Its tensile strength, yield strength, and elongation values are all higher than those of most other grades of stainless steel. 1Cr17 is thus often used for applications that require heavy-duty performance and high levels of resistance to wear, fatigue, and corrosion such as automotive parts, kitchen utensils, and medical devices. It is used to make knife blades, cutlery, and other metal items. Additionally, 1Cr17 has excellent properties in hot working, making it a popular choice for hot rolled flat products.
Heat Treatment
1Cr17 can be heat treated in an annealing process at 860–910°C (1580–1670°F). Upon cooling, the material becomes softer and easier to forge and machine. This type of heat treatment is mainly used to reduce the hardness and strength of the material, as well as to refine the microstructure in order to improve machinability.
Cold Rolling
Cold rolling is used to reduce the thickness of metals. Cold rolling 1Cr17 stainless steel can be used to produce complex shapes, improve wear and corrosion resistance, or eliminate surface defects or create an improved surface finish. The process involves passing the material through a series of rollers that increase the material’s temperature, thus reducing its thickness and creating a finer grain structure. Cold rolling 1Cr17 requires a very tight temperature control and is often used in combination with other heat treatments.
Conclusion
1Cr17 (4Cr17) stainless steel is an iron-based alloy that contains chromium, manganese, and magnesium, as well as other alloys. It is commonly used in applications that require strength, durability, and corrosion resistance. It can be heat treated and cold rolled to improve properties such as surface finish, wear resistance, and machinability. 1Cr17 is highly resistant to corrosion and temperature, making it an ideal choice for various industries.
