38MNVS6 Induction Hardened (Nikrom® 500)

38MnVS6 Induction Hardened (Nikrom® 500) is a high-strength, micro-alloyed hydraulic steel bar engineered for applications where impact resistance and corrosion performance are critical. As a cost-effective alternative to chrome-plated stainless steel, it offers superior machinability, full induction hardening capability, and a significantly lower price point — without compromising on corrosion protection.

Key Properties

• Tensile Strength: 850–1000 MPa
• Yield Stress (Rp0.2): 580 N/mm² min
• Elongation A5: 14%
• Hardness: 250–300 HB
• Induction Hardening: Yes — optimised for this process
• Weldability: Excellent (preheating to 200°C recommended for fusion welding; friction welding also suitable)
• Corrosion Resistance (NSS/R10): >1,500 hours — equal to Duplex stainless, at a fraction of the cost

Why Specify Nikrom® 500?

Compared to AISI 329 Duplex ferritic-austenitic stainless steel (EN 1.4460/4462), 38MnVS6 Nikrom® 500 delivers equivalent corrosion resistance with significantly better machinability, full induction hardening capability, superior coating adhesion, and a maximum diameter of 160mm versus 100mm for Duplex. Typical price saving for 50mm diameter: approximately 37%.

The exception: where a no-corrosion requirement applies to the machined end of the rod (such as food processing equipment), chromed stainless steel remains the appropriate choice.

Typical Applications

• Off-road and mining: Hydraulic cylinder rods on excavators, drilling rigs, underground materials handling equipment, quarrying plant.
• Marine and coastal: Marine crane rods on ships and offshore platforms, dredging barges, military landing craft, car ferry ramp and door rams. Well suited to coastal and shipyard environments, including harbour cranes and container-handling equipment.
• Industrial: Chemical plants, roof supports, swimming pool structures, and other industrial areas where corrosion performance is required alongside high strength.