Steel name: 18 NCD-4
Diagram No.: 1851
Type of diagram: TTT
AFNOR designation: 18 NCD-4
Chemical composition in weight %: 0.17% C, 0.63% Mn, 0.28% Si, 0.011% S, 0.022% P
1.13% Ni, 0.49% Cr, 0.13% Mo, 0.10% Cu.
Note: Structural steel. Austenitizing temperature: 850
oC (1562
oF) for
30 min. Grain size: 10.
Ac
1: 730
oC, Ac
3: 830
oC, M
s: 385
oC.
Source: Courbes de Transformation des Aciers de Fabrication Francaise, IRSID, Paris,
France, 1974.
Price: 30.00 US $
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