4130 Steel Bar

Size ranging from .250" to 15"

4130 steel bar is an alloy steel bar that is typically heat-treated by either annealing or quench and tempering. It is utilized in a variety of commercial applications such as pumps and fittings in the automotive and energy industries.

Requirement Specifications we can meet:

  • ASTM A29
  • ASTM A576
  • JDM QL-2 certified

Shapes Available

  • Rounds
  • Square
  • Hexagon
  • Rounded Cornered Square
  • Flats
  • Please give as much detail as you can and a King Steel representative will contact you shortly to help you.
  • Max. file size: 50 MB.
  • This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hot Rolled Steel Properties

Chemical Properties
Carbon 0.28 – 0.33
Manganese 0.40 – 0.60
Phosporus (max) 0.035
Sulfur (max) 0.040
Silicon 0.15 – 0.35
Chromium 0.80 – 1.10
Molybdenum 0.15 – 0.25

If your application requires specific mechanical properties, please inquire with our sales team.

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.

It’s Time to Upgrade Your Steel Solutions

Let the experts at King Steel show you how we can help take your business from good to great.