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Commercial Production · Alloy Steel · Nickel-Chromium-Molybdenum Case-Hardening Steel Bar

9310 Round Steel Bar

A premium case-hardening alloy used for highly loaded gears and components requiring exceptional core toughness and fatigue strength. Request Pricing

9310 Round Bar: Material Profile

9310 combines substantial nickel with chromium and molybdenum for deep hardenability and strong performance after carburizing.

Aerospace or bearing-quality orders may require controlled melt practice, cleanliness, ultrasonic inspection, grain size, and detailed heat-treatment certification.

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

  • Exceptional core toughness
  • Excellent carburizing response
  • High fatigue strength
  • Deep hardenability

Common Applications

  • Aircraft gears
  • Critical pinions and shafts
  • High-load bearings
  • Defense and racing drivetrain 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 Pricing for 9310 Round Bar

We quote 9310 for manufacturers and commercial buyers. Requirements of 3,000–10,000 lb are welcome, along with multi-ton and truckload programs.

We are not a retail metal store. Small personal-use, typical single-bar, and cut-piece orders are generally not a fit. The material field is prefilled and remains editable; add the specification, size, condition, total weight, processing, testing, required date, and ship-to location.

Up to 4 files, 10 MB each and 20 MB total. PDF, images, DOC/DOCX, XLS/XLSX, CSV, TXT, DWG, DXF, STEP, or IGES. Archives, executables, SVG, and HTML are not accepted.

Fast response: We review website RFQs promptly and reply fast during business hours.

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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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