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Assorted round steel bar stock

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Alloy Steel · Nickel-Molybdenum Case-Hardening Steel Bar

4620 Round Steel Bar

A nickel-molybdenum alloy chosen for carburized gears and components that need a hard case and tough interior. Request Pricing

4620 Round Bar: Material Profile

4620 provides greater core carbon than 4615 while maintaining the case-hardening and toughness benefits of the 46XX family.

The intended section size, carburizing practice, case requirements, and final mechanical properties guide supply selection.

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

  • Excellent carburizing response
  • Good core toughness
  • Good hardenability
  • Good impact resistance

Common Applications

  • Transmission gears
  • Pinions and shafts
  • Heavy-duty bushings
  • Powertrain components

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 4620 Round Bar

The material field is prefilled with 4620 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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