SAE 3140 Steel

Steel name: SAE 3140
Diagram No.: 8372
Type of diagram: TTE
AISI/SAE designation: SAE 3140
Chemical composition in weight %: 0.38-0.43% C, 0.20-0.35% Si, 0.70–0.90% Mn, max. 0.040% P, max. 0.040% S, 0.55–0.75% Cr, 1.10–1.40% Ni
Steel group: Alloy steels
Note: All speciments previously austentized 1 hr at 1650 F and water quenched. Specimens treated at 1229 F and bellow were also given a prior temper of 1 h at 1250 F and water quenched.
Reference: Not shown in this demo version.

Transformation Diagram


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