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Alloy Steel · Nickel-Molybdenum Case-Hardening Steel Bar

4615 Round Steel Bar

A low-carbon nickel-molybdenum alloy used for carburized parts requiring toughness and a durable wearing surface. Request Pricing

4615 Round Bar: Material Profile

4615 is intended for case-hardened components where nickel supports toughness and molybdenum improves hardenability.

Include the required case depth, surface hardness, core properties, bar condition, and governing material specification.

Purchase to the controlling ASTM, SAE, AMS, or customer specification. Section size, supply condition, mechanical properties, surface limits, testing, and heat/lot traceability can change the acceptable material and processing route.

Product form Round bar; other long-product forms by inquiry
Condition Hot rolled, cold finished, annealed, or heat treated as required
Quote details Specification, size, condition, quantity, testing, and delivery

Key Characteristics

  • Good case-hardening response
  • Tough core
  • Good fatigue resistance
  • Machinable before carburizing

Common Applications

  • Gears and pinions
  • Bushings and sleeves
  • Small shafts
  • Case-hardened transmission parts

Specification Requirements

Identify the governing specification and revision, product form, section size, condition, mechanical properties, testing, and certification requirements. The purchase specification and material certification govern the order.

Request a Quote for 4615 Round Bar

The material field is prefilled with 4615 and remains editable. Add the specification, size, condition, quantity, processing, testing, required date, and ship-to location.

Premium Steel Sales
Ohio Bar & Metal Co. is the round bar division of Premium Steel Sales LLC.

Premium Steel Sales handles customer setup and invoicing. Flat-rolled carbon and coated steel can be quoted through the same sales contact.

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