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1045 Hot Rolled SBQ Bar

Hot rolled 1045 steel bar is a medium carbon common steel grade with moderate weldability, higher strength, and impact properties for a variety of applications. 1045 steel is a common grade because of its cost and excellent properties. However, due to its lack of alloying content, this grade has limits on mechanical properties and options for heat treatments. Eaton Steel Bar Company stocks many diameters of this grade to meet the market demands. We also supply 1045 hot rolled steel bar to various industries like automotive, agriculture, ATV, construction, and motorcycle.

1045 hot-rolled-steel-bar


Typical applications for this grade include:

  • Bolts
  • Fasteners
  • Shafts
  • Yokes
  • Hubs
  • Gears
  • Axles
  • Casters

1045 Hot Rolled Steel Bar Requirements

Eaton Steel Bar Company meets the following specifications for this grade:

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

Shapes and Sizes

Eaton Steel Bar Company supplies 1045 steel bar in a variety of sizes ranging from 5/8”-16”. The shapes available for this grade include:

  • 1045 Hot Rolled Rounds bar
  • Rounded Cornered Square
  • 1045 Hot Rolled Square bar

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

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Standard "1045 Grade" Chemical Composition

Carbon 0.43-0.50
Manganese 0.60-0.90
Phosphorus (max) 0.040
Sulfur (max) 0.050


Estimated Mechanical Property Ranges for "Grade 1045"

Tensile strength (psi) 85,000 - 95,000
Yield strength (psi) 45,000 - 55,000
Elongation in 2” (%) 15 - 20
Reduction of area (%) 30 - 40
Brinell Hardness (BHN) 170 - 200