1144 Steel Bar


1144 steel is a medium-carbon steel distinguished by its exceptional strength and stress resistance. Its strength comes from its higher carbon and manganese content, while its stress resistance is derived from a special treatment process. This treatment improves the steel’s strength and hardness without compromising its ductility and machinability. 1144 steel is ideal for parts frequently exposed to stress and wear, like gears, shafts, and fasteners, particularly where vibration and fatigue resistance are crucial.

Chemical Properties
Iron 97.05 – 98.01
Carbon 0.40 – 0.48
Manganese 1.35 – 1.65
Phosporus 0.04 (max)
Sulfur 0.24 – 0.33 (max)

Shapes & Sizes Available

  • Rounds
  • Square
  • Round Corner Square
  • Hex
  • Flats

Requirement Specifications we can meet:

  • ASTM A576
  • ASTM A108

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Process Services

King Steel offers a variety of value-added services to improve your workflow and quality control. Our processing capabilities include:

  • Turn and Polish
  • Cold Drawing
  • Annealing
  • Chamfering
  • Grinding
  • Quench and Temper
  • Heat Treated
  • Machine Straightening
  • Precision Saw Cutting
  • Custom Shapes
  • Shot Blast
  • Eddy Current Testing
  • Turn, Ground & Polished
  • Cold Drawn, & Polished
  • Straighten & Cut
  • Ultrasonic Testing
  • Pickle & Oil
  • Stress Relieve
  • Normalize
  • Case Hardening

Learn more about our processing capabilities.

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