4140 Steel

4140 Steel

Shapes Available

  • Flat Bar
  • Hex Bar
  • Plate
  • Round Bar
  • Tubing

Industries

  • Aerospace
  • Manufacturing

Industry Names

  • 4140 Cond Annealed
  • 4140 Pre-Hardened
  • 4140 HT
  • 4140 Hot Roll
  • 4140 HR
  • 4140 Condition C
  • Alloy 4140

Material

  • Cold Finished and Alloy

Specifications

  • AISI 4140
  • AMS 6362 (Round Bar)
  • AMS 6381 (Tubing)
  • UNS G41400

Applications

  • Bearings
  • Cylinders
  • Gears
  • Hydraulic Shafts
  • Nuts and Bolts

Features

  • Good General Machinability

4140 steel is a Chrome – Moly alloy that contains chromium and molybdenum as strengthening agents. It offers a strong balance of strength, toughness and wear resistance.


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
ElementMinMax
C0.38 0.43
Cr0.80 1.1
Mn0.7 1.00
Mo0.15 0.25
P- 0.035
S- 0.04
Si0.15 0.30
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