304 Stainless Steel

Steel name: 304 Stainless Steel
Diagram No.: 2943
Type of diagram: TTS
Chemical composition in weight %: 0.078% C, 0.41% Si, 1.12% Mn, 0.025% P, 0.027% S, 18.10% Cr, 8.49% Ni, 0.21% Cu
Steel group: Stainless steels
Note: Time-temperature sensitization and intergranular corrosion. Treatment: All samples were initially given a solution anneal heat treatment at 1100oC (2010oF) for 1 h, followed by a water quench. Some samples were then isothermally aged to determine the sensitization characteristics of the undeformed material. Other samples were first deformed and then aged. Aging heat treatments were isothermal and were followed by a water quench. An argon atmosphere was used for all heat treatments. The results if the modified Strass Test for undeformed and deformed T304 samples. Each point is for a time and temperature of heating. Each symbol denotes the response in the test The dashed lines separate the time-temperature combinations which produce sensitization, from those do not.
Reference: Not shown in this demo version.

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