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Introduction
Austenitic stainless steel (S35350 1Cr17Mn6Ni5N), also known as “300-series stainless steel,” is an alloy of iron, chromium, and other elements. It is the most common of all stainless steel alloys and is known for its excellent corrosion resistance and high-temperature strength. This makes S35350 1Cr17Mn6Ni5N austenitic stainless steel an ideal choice for applications that require good resistance to oxidation and corrosion, and good fatigue and creep strength.
Properties
S35350 1Cr17Mn6Ni5N austenitic stainless steel is composed of 18% chromium, 8% nickel, and it also contains molybdenum, nitrogen and other elements. This material offers many beneficial characteristics, such as:
•Excellent corrosion resistance
•Good oxidation resistance
•High strength and ductility
•Excellent creep and stress-rupture strength
•Good fatigue resistance
•Good low and elevated temperature strength
•Good weldability
•Resistant to stress corrosion cracking
•Non-magnetic
Applications
The excellent corrosion, oxidation and creep resistance, as well as good strength and ductility of S35350 1Cr17Mn6Ni5N austenitic stainless steel make it suitable for a variety of applications. Its excellent corrosion resistance makes it ideal for applications in the chemical, petrochemical and medical industries. Its strength and ductility make it suitable for components for refrigeration, agricultural and oilfield equipment, marine applications, valves and pumps, and general engineering applications. Its non-magnetic properties make it useful for electrical and control applications.
Fabrication
S35350 1Cr17Mn6Ni5N stainless steel can be fabricated using standard techniques. The material can be bent, formed, machined, rolled, and welded. It will usually reach its lowest strength after fabrication and subsequent welding, so post-weld heat treatments should be done to regain the typical strength of the material.
Heat Treatment
In general, heat treatment of S35350 1Cr17Mn6Ni5N austenitic stainless steel is not recommended. However, in some cases, heat treatment may be beneficial. Heat treatments for S35350 1Cr17Mn6Ni5N stainless steel include solution annealing and stress relieving. Solution annealing is performed when the material must be made ductile and machinable.
Conclusion
S35350 1Cr17Mn6Ni5N austenitic stainless steel is an alloy composed of iron, chromium, molybdenum, nitrogen, and other elements. It offers excellent corrosion and oxidation resistance, as well as good creep, stress-rupture, and fatigue resistance, making it ideal for a variety of applications. This material can be easily fabricated and welded, and post-weld heat treatments may be necessary to restore the material’s strength and ductility. Heat treatment of this material is generally not necessary, but should be done in some cases to increase its strength and ductility.