C55E Steel

Steel name: C55E
Table No.: 2115
DIN designation: Ck55
Mat.No. (Wr.Nr.) designation: 1.1203
AISI/SAE designation: 1055
EN designation: C55E
UNI designation: C55
AFNOR designation: XC55 H1
BS designation: 870M55
GB designation: 55
Chemical composition in weight %: 0.52-0.50% C, max. 0.40% Si, 0.60-0.90% Mn, max. 0.030% P, max. 0.035% S, max. 0.40% Cr, max. 0.10% Mo, max. 0.40% Ni
Steel group: Carbon steels
Applications: No data
Comment: Ac1=730 C, Ac3=765 C, Ms=300 C, Mf=80 C.
Reference: Not shown in this demo version.

Heat Treatment
Quenching: 830 C/water
Tempering: 550-650/air

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