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Materials Alloy Steel 4140/4142/41L40 Low Alloy

4140, 4142, & 41L40 Alloy Steel

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What is 4000 Series Alloy Steel?

SAE 4140, 4142, and 41L40 low alloy steel machined parts are commonly used in the automotive industry. Tensile strengths of 4000 series alloy steel machined parts range from 95,000 to 105,000 pounds per square inch and their yield strengths range from 85,000 to 95,000 pounds per square inch.

Benefits of 4000 Series Alloy Steel

The benefits of 4140, 4142, and 41L40 alloy steel machining include:

  • Great strength-to-weight ratio
  • Excellent machinability
  • Wear resistance


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Applications of 4000 Series Alloy Steel

Common applications of 4140, 4142, and 41L40 alloy steel machined parts include:

  • Camshafts
  • Piston rods
  • Gears
  • Tools such as drill collars

E.J. Basler offers precision 4140, 4142, and 41L40 steel machined parts with superior quality, tolerances, and surface finish.

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