AISI 1090 Steel

Steel name: AISI 1090
Diagram No.: 7741
Type of diagram: TTT
AISI/SAE designation: AISI 1090
Chemical composition in weight %: 0.85-0.98% C, 0.6-0.9% Mn, max. 0.04% P, max. 0.05% S
Steel group: Carbon steels
Note: Experimental TTT curves (adapted from Ref. [4]) for the structural steel AISI 1090, containing approximately 0.84% C and 0.60% Mn. The letters A, F and C represent the f.c.c.-austenite, the equilibrium b.c.c-ferrite and the carbide precipitate (Fe3C) respectively. Curves corresponding to 0, 50 and 100 % transformation are shown. Below a temperature Ms, the metastable martensite (M) is formed - the transformation curves for martensites are horizontal.
Reference: Not shown in this demo version.

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