625 Alloy

Alloy name: 625
Diagram No.: 708
Type of diagram: TTT
Chemical composition in weight %: max. 0.10% C, 20.0-23.0% Cr, 8.0-10.0% Mo, max. 5.0% Fe, max. 0.015% P, max. 0.5% Si, max. 0.015% S, max. 0.50% Mn, Cb+Ta: 3.15-4.15%, max. 0.40% Al, max. 0.40% Ti, balance is Ni
Alloy group: Nickel-based alloys
Note: TTT diagrams for Alloy 625 annealed at (a) 982 C/30 min and water-quenched, and b) 1204 C/1 h and water-quenched [Harris and Scarberry 1971}. Labels are percent chromium in extracted carbide residues. Broken lines enclose areas of moderate sensitization and excessive sensitization.
Reference: Not shown in this demo version.

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