34CrNiMo6 Steel

34CrNiMo6 Steel

Steel name: Ovako 356D and 356Q
Diagram No.: 2685
DIN designation: 34CrNiMo6
Chemical composition in weight %:
356D steel: 0.32-0.38% C, 0.20-0.35% Si, 0.70-0.80% Mn, <0.025% P, 0.020-0.030% S, 1.35-1.60% Cr, 0.20-0.30% Mo, 1.30-1.60% Ni, <0.10% V
356Q steel: 0.32-0.38% C, 0.15-0.35% Si, 0.65-0.80% Mn, <0.025% P, <0.020% S, 1.50-1.60% Cr, 0.20-0.30% Mo, 1.50-1.60% Ni, <0.10% V
Steel group: Alloyed steels
Properties: 34CrNiMo6 is a quenching and tempering steel with high strength, high toughness and good hardenability.
Applications: Used for large axles, machine components, tools and high strength fasteners. The steel can be induction hardened and it is weldable under certain conditions. Through hardenability to appr. 100 mm diameter bar with oil quenching.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 820-850 C, oil.
Tempering: 540-680 C, air.
Diagram note: Ms=315 C, Ac=725 C, Ac3=785 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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