39NiCrMo3 round bar, ground, quenched and tempered

Mechanical engineering and gear industry

The 39NiCrMo3 round bar, ground, quenched and tempered, is widely used in the mechanical engineering industry, particularly in the production of gears and transmissions subject to high stress. Its superior mechanical properties, obtained through the quenching and tempering process, make it ideal for the production of components that must withstand cyclic loads and high mechanical stresses.

Gear manufacturers choose this steel for the production of toothed wheels, pinions and transmission shafts, where the combination of surface hardness and core toughness ensures optimal performance and long operating life.

Automotive sector and components

In the automotive sector, ground quenched and tempered 39NiCrMo3 is widely used for the production of critical components such as crankshafts, connecting rods and transmission parts. The ground finish ensures tight dimensional tolerances and optimal surface roughness, essential requirements for high-precision components.

Manufacturers of cylinders and crankshafts particularly appreciate this material for its ability to maintain mechanical properties even under severe operating conditions, ensuring reliability and consistent performance over time.

Mould and tool industry

The 39NiCrMo3 round bar, ground, quenched and tempered, represents an excellent choice for mould and tool manufacturers who require materials with high wear resistance and dimensional stability. The ground finish eliminates the need for further machining, reducing production times.

This steel is particularly suitable for the production of industrial presses, moulding dies and machine tool components, where dimensional precision and mechanical strength are critical parameters.

Energy sector and Oil & Gas

In the energy sector, quenched and tempered 39NiCrMo3 is used for the production of components for oil plants and extraction systems. Its high strength and fatigue resistance make it suitable for heavily loaded components; in aggressive environments adequate corrosion protection must be applied, since high-strength quenched and tempered steel can be susceptible to stress corrosion cracking.

Turbine and generator manufacturers use this steel for shafts, rotors and structural components subjected to high mechanical loads and pressure, ensuring plant safety and reliability.

Specialized metal fabrication

In metal fabrication, 39NiCrMo3 is used in structures requiring high mechanical characteristics. Metal structure manufacturers use it for critical elements such as pins, high-strength fasteners and connecting components that must withstand significant dynamic loads.

The availability of the material in ground and quenched and tempered form allows fabricators to create precision joints and assemblies that require tight tolerances, optimising processing times and ensuring the final quality of the product.