![]() It has good formability and weldability, making it a popular choice for many applications. Ferritic Stainless Steelįerritic Stainless Steel is a chromium-based stainless steel that falls into the ferrite family of steels. Manganese increases the solubility of nitrogen in the austenitic phase due to this higher N is added to grades having higher Mn%, especially in the 200 series. Nitrogen added types are designated with suffix N e.g. Nitrogen is added to certain grades as a strength enhancer mainly at ambient and cryogenic temperatures. Carbon also provides improved creep strength at elevated temperatures. In Austenitic stainless steels, nickel is the main element promoting the austenitic structure stability at the room temperature (generally over 8%) inter-alia to C, N, and Cu which also work as austenite stabilizers. All the above super properties of austenitic stainless steel make it one of the very important engineering materials for various service environments. Nickel improves the resistance to SCC or stress corrosion cracking failure mechanism. Being an austenitic microstructure, austenitic stainless steel is a non-magnetic material. Although, austenitic stainless steel properties can be changed by work hardening phenomena without any loss in material toughness and ductility. Austenitic stainless steels cannot be hardened by heat treatment due to their non-responsive microstructure to heat. In stainless steel materials, the addition of Chromium, Molybdenum, and Nitrogen improves the corrosion resistance for different types. Alloying Elements in Austenitic Stainless Steel They are not an appropriate choice in some common environments such as seawater, chloride-containing media or in highly caustic environments due to their susceptibility to stress corrosion cracking (SSC). The presence of Cr as a highly oxidizing element provides a protective surface layer for resistance against corrosion and further oxidation. This also reduces the sensitization effect in ASS and hence prevents intergranular corrosion (IGC).Īustenitic stainless steels being ductile types exhibit significant elongation in a tensile test. Austenitic stainless steels having up to 1% of Ti & Nb effectively reduce the matrix carbon content thus preventing M23C6 types formation. The stabilized grades of ASS such as 321 and 347, contain a small amount of Ti and Nb, which are having higher carbide (MC-type) formation affinity to carbon compare to Cr at elevated temperature, thus preventing Cr-carbide (M23C6) precipitation. Austenitic Stainless Steel Stabilization Grades Some grades contain a higher amount of silicon and/or aluminum with carbon to maintain oxidation and/or carburization resistance and strength respectively. Grade 316 substitutes approximately 2% molybdenum (Mo) to a nearly equal amount of Cr to enhance pitting corrosion resistance. wear at the bolt threads).įurther ASS grades are suffix with L (nominal value of 0.03 wt% C) or H (up to 0.1 wt% C) which mean low carbon or high carbon respectively. application required galling resistance (Galling is a form of wear caused by adhesion between sliding surfaces e.g. 200 series used in special applications e.g. 300 series alloys by American Iron and Steel Institute (AISI).Ģ00 Series has high carbon, manganese, and nitrogen compared to 300 Series & lower Ni to compensate for these elements.The stainless steel plate weight calculator are available in both Metric and Imperial.Austenitic stainless steels are classified as: The specific weight value in the following table is equal to the density value (g/cm3, metric).The following table lists the specific weight (gravity) and density of stainless steel 304, 316, 303, 304L, 316L and other AISI type stainless. The international density unit is kg/cm3, kg/dm3, kg/m3. Density (ρ) is equal to the mass (M) of an object divided by the volume (V), the formula is ρ = m/V. The weight of stainless steel per cubic inch is 0.286 pound, per cubic foot is 495 pounds.ĭensity also known as specific mass or specific gravity, is a measure of the mass in a specific volume. The density of stainless steel is about 7.93 g/cm3 (0.286 lb/in3). Weight & Density of Stainless Steel 304, 316, 304L & 316L
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