3.25Si Steel

Steel name: 3.25Si Steel
Diagram No.: 2792
Type of diagram: TTT
Chemical composition in weight %: 0.051% C, 3.44% Si, 0.21% Mn, 0.010% P, 0.011% S
Steel group: Alloy steels
Note: Precipitation diagram. Silicon steel. Austenitizing temperature: 1095oC (2000oF). Treatment: Before transformation, specimens were heated to 1095oC (2000oF) at which temperature the 0.05% C steel contained approximate 20% and the 0.033% C steel approximate 7% austenite. Transformation of this austenite was investigated at temperatures from 815 to 540oC (1500 to 1000oF). Specimens were plated with nickel, then heated for 15 min at 1045oC (2000oF) in a continuously evacuated silica tube. At the end of this period the vacuum was broken and the specimens quickly transfered to a lead bath at the desired transformation temperature. See the diagram No. 2793.
Reference: Not shown in this demo version.

Transformation Diagram

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