50CrMo4 Steel

50CrMo4 Steel

Steel name: Ovako 528E and 528Q
Diagram No.: 2689
DIN designation: 50CrMo4
Chemical composition in weight %:
528E steel: 0.50-0.52% C, 0.15-0.40% Si, 0.60-0.90% Mn, <0.025% P, 0.030-0.050% S, 0.90-1.20% Cr, 0.18-0.25% Mo, 0.18-0.25% Ni, <0.35% Cu
528Q steel: 0.50-0.55% C, 0.15-0.40% Si, 0.60-0.90% Mn, <0.025% P, <0.001% S, 0.90-1.20% Cr, 0.15-0.25% Mo, <0.25% Ni, <0.35% Cu
Steel group: Alloyed steels
Properties: Ovako 528E and 528Q is a high tensile quench and tempering steel with high wear resistance and good toughness. The grade is mainly used for axis and machine components. Ovako 528Q is produced with the quality class IQ (isotropic quality). This ensures a very low number of elongated sulphide inclusions which will give more isotropic properties. The oxidic cleanliness is high and the steel could therefore meet same high demands as for remelted qualities. Through hardenability corresponding to a bar with approx. Ø75mm (oil quenched).
Applications: Suitable for flame or induction hardening. Delivered as rolled, soft annealed normalized or quench and tempered. Weldable under certain conditions.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 830-860 C, oil. 820-850 C, water.
Tempering: 525-625 C/1h.
Diagram note: Ac1=736, Ac3=775 C, Ms=289 C.

Tempering Diagram

Price: 20.00 US $
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Other Steel Data links
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants

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