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9310 Steel

Shapes Available

  • Round Bar


  • Aerospace

Industry Names

  • 9310 AQ/BQ
  • 9310 AQ
  • E9310
  • 9310 Air Melt
  • 9310 Vac-Arc
  • 9310 Vac Melt
  • AMS 6265
  • AMS 6260


  • Cold Finished and Alloy


  • 299-947-032 (Bell) (VAR)
  • AMS 6260 (Round Bar)
  • AMS 6265 (Round Bar)
  • BMS 7-249 (Boeing - VIM-VAR)
  • EMS 56279 (Honeywell)
  • EMS 56280 (Honeywell)
  • HMS 6-1263 (Boeing-Mesa)
  • SS 9705 (Sikorsky) (VIM-VAR)


  • Aircraft Engine Gears
  • Aircraft Engine Pinions


  • High Core Hardness
  • High Fatigue Strength
  • High Hardenability

9310 steel is a low alloy steel that contains Nickel, Chromium, and Molybdenum. Alloy 9310 Bar is a triple alloy based on the inclusion of the previous elements of Nickel, Chromium, and Molybdenum.

9310 Vac Melt is a high quality carburizing steel produced by a vacuum consumable electrode process. 9310 has a high hardenability, high core hardness and high fatigue strength. All of those aspects considered, 9310 steel is ideally suited for aircraft engine gear and pinon applications.

9310 Alloy Steel is manufactured for the purpose of case hardening and 9310 steel is deep hardening. Generally 9310 steel is most commonly used in applications where toughness, high wear resistance and strength are required.

9310 round bar is the typical shape supplied in this grade. Please call Michlin Metals today for any 9310 needs.

Please contact us to request a quote. We specialize in hard to find material.

We work closely with many manufacturers in the aerospace & defense industry. We work with NADCAP approved heat treaters and testing laboratories. We can supply DFARS compliant material.

Chemical Composition
C0.08 0.13
Cr1.00 1.40
Mn0.45 0.65
Mo0.08 0.15
Ni3.00 3.50
P- 0.025
S- 0.24
Si0.15 0.30

DISCLAIMER: The information provided on this Web site, technical or otherwise, is merely for informational purposes, and is not intended to serve as a guide, manual, instructions, or any kind reference for proper safety procedures or material purchasing. Michlin Metals makes no warranty, express or implied, based on the statements on this Web site and, as such, will not be liable for any damages, either direct or indirect, including but not limited to consequential damages, such as damages for loss of profits, that may arise based on reliance on the information provided on this Web site. Some information has been referenced from reliable industry sources. Tradenames listed are the sole property of the tradename owners. Michlin Metals typically provides branded products through its relationships with mills and authorized re-sellers. Equivalent non-branded product is sometimes also available through certified sources of such products. Michlin Metals will never substitute non-branded product when branded product is requested.

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