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4130 Hot Rolled SBQ Bar

Grade 4130 steel has many advantages including good weldability and good mechanical properties. Eaton Steel Bar Company stocks many diameters of 4130 hot rolled steel bar available to meet the market demand.

4130 hot-rolled-steel-bar

4130 Hot Rolled Steel Bar Applications

This grade of steel has applications in the oil and gas, and firearms industries. Typical applications for 4130 steel bar stock include parts that are used under high stress such as pumps, valve bodies, fittings, chassis, and more.

Shapes and Sizes for 4130 Hot ROlled SBQ Bar

Eaton Steel Bar Company supplies 4130 steel bar stock in a variety of sizes ranging from 1¼”- 15”. Other sizes may be available, contact Eaton Steel for more information. The shapes available for this grade include:

  • 4130 Hot Rolled Round Bar
  • Rounded Cornered Square

***Minimum Total Quantity Per Order is 10,000 lbs.***

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Standard "4130 Grade" Chemical Composition

Carbon 0.28-0.33
Manganese 0.40-0.60
Phosphorus (max) 0.035
Sulfur (max) 0.040
Silicon 0.15-0.35
Chromium 0.80-1.10
Molybdenum 0.15-0.25


Estimated Mechanical Property Ranges for Grade 4130 Steel Bar

Tensile strength (psi) 85,000 - 95,000
Yield strength (psi) 55,000 - 65,000
Elongation in 2” (%) 25 - 35
Reduction of area (%) 45 - 55
Brinell Hardness (BHN) 180 - 210