48CrMoNi4-10 Steel

48CrMoNi4-10 Steel

Steel name: Ovako 495B
Diagram No.: 2688
DIN designation: 48CrMoNi4-10
Chemical composition in weight %: 0.47-0.50% C, 0.20-0.30% Si, 0.75-0.85% Mn, <0.015% P, 0.015-0.020% S, 1.05-1.20% Cr, 0.93-1.00% Mo, 0.43-0.50% Ni, 0.10-0.13% V
Steel group: Alloyed steels
Properties: Ovako 495 is a high strength quench and tempering steel with high wear resistance, good toughness and good dimension stability. The steel can be tempered at high temperatures and still maintain a high hardness and high strength. It is microalloyed to obtain a precipitation hardening effect. The through hardenability corresponds to a bar with approximate Ø100mm (oil quenched).
Applications: Ovako 495 is mainly used for drill heads. Ovako 495 can be supplied as ingot cast (IC) or continuous cast (CC) steel.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 840-890°C, oil.
Tempering: 160-700°C, air.
Diagram note: Ac1=733 C, Ac3=808 C, Ms=283 C.

Tempering Diagram

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