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Carbon Steel Square Bar

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Carbon Steel Square Bar

We carry Carbon Steel Square Bar in A36, 1018, and 1045.

 

A36 offers good strength, high durability, heavy weight, easy weldability, and low cost. A36 steel is the most common low-carbon structural steel.

 

1018 steel is the most commonly available of the cold-rolled steels. It has a good combination of all of the typical traits of steel - strength, some ductility, and comparative ease of welding and machining. 

 

1045 is a commonly used low carbon steel alloy with good strength, ductility, and ease of machining.

 

Relevant Knowledge Hub Resources: 5 Reasons to Cut to Size | Hot Roll vs Cold Roll Steel

Material Properties

Link Icon Carbon Steel Product Guide

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1 1/4" Carbon Steel Square Bar A36 Hot Rolled Part # 10283

1 1/4" Carbon Steel Square Bar A36 Hot Rolled -
Part #: 10283
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$16.95 for 1
$16.95 ea.

Dimensions

  • Height: 1.25"
Click for more details
hot-roll-square-bar-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
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hot-roll-square-bar-a36-1superZoom-desk10283

1 1/4" Carbon Steel Square Bar 1018 Precision Ground Part # 12486

1 1/4" Carbon Steel Square Bar 1018 Precision Ground -
Part #: 12486
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$182.18 for 1
$182.18 ea.

Dimensions

  • Height: 1.25"
Click for more details
tool-steel-square-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

Key Features

MTR FREE MTR Available
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tool-steel-square-bar-1018-1superZoom-desk12486

1 1/4" Carbon Steel Square Bar 1018 Cold Finish Part # 12739

1 1/4" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 12739
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$27.94 for 1
$27.94 ea.

Dimensions

  • Height: 1.25"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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mild-steel-square-bar-1018-cold-finish-1superZoom-desk12739

1 1/2" Carbon Steel Square Bar 1018 Cold Finish Part # 19578

1 1/2" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 19578
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$38.20 for 1
$38.20 ea.

Dimensions

  • Height: 1.5"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk19578

1 1/2" Carbon Steel Square Bar A36 Hot Rolled Part # 10284

1 1/2" Carbon Steel Square Bar A36 Hot Rolled -
Part #: 10284
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$26.91 for 1
$26.91 ea.

Dimensions

  • Height: 1.5"
Click for more details
hot-roll-square-bar-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
hot-roll-square-bar-a36-1superZoom-desk10284

1 1/2" Carbon Steel Square Bar 1018 Precision Ground Part # 12488

1 1/2" Carbon Steel Square Bar 1018 Precision Ground -
Part #: 12488
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$236.84 for 1
$236.84 ea.

Dimensions

  • Height: 1.5"
Click for more details
tool-steel-square-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-square-bar-1018-1superZoom-desk12488

1 3/4" Carbon Steel Square Bar 1018 Cold Finish Part # 12740

1 3/4" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 12740
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$56.51 for 1
$56.51 ea.

Dimensions

  • Height: 1.75"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk12740

2" Carbon Steel Square Bar A36 Hot Rolled Part # 10285

2" Carbon Steel Square Bar A36 Hot Rolled -
Part #: 10285
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$35.00 for 1
$35.00 ea.

Dimensions

  • Height: 2"
Click for more details
hot-roll-square-bar-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
hot-roll-square-bar-a36-1superZoom-desk10285

2" Carbon Steel Square Bar 1018 Precision Ground Part # 12490

2" Carbon Steel Square Bar 1018 Precision Ground -
Part #: 12490
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$343.86 for 1
$343.86 ea.

Dimensions

  • Height: 2"
Click for more details
tool-steel-square-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-square-bar-1018-1superZoom-desk12490

2" Carbon Steel Square Bar 1018 Cold Finish Part # 13230

2" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 13230
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$53.43 for 1
$53.43 ea.

Dimensions

  • Height: 2"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk13230

2 1/4" Carbon Steel Square Bar 1018 Precision Ground Part # 12492

2 1/4" Carbon Steel Square Bar 1018 Precision Ground -
Part #: 12492
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$410.23 for 1
$410.23 ea.

Dimensions

  • Height: 2.25"
Click for more details
tool-steel-square-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-square-bar-1018-1superZoom-desk12492

2 1/2" Carbon Steel Square Bar 1018 Precision Ground Part # 12493

2 1/2" Carbon Steel Square Bar 1018 Precision Ground -
Part #: 12493
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$465.38 for 1
$465.38 ea.

Dimensions

  • Height: 2.5"
Click for more details
tool-steel-square-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-square-bar-1018-1superZoom-desk12493

2 1/2" Carbon Steel Square Bar A36 Hot Rolled Part # 27525

2 1/2" Carbon Steel Square Bar A36 Hot Rolled -
Part #: 27525
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$70.68 for 1
$70.68 ea.

Dimensions

  • Height: 2.5"
Click for more details
hot-roll-square-bar-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
hot-roll-square-bar-a36-1superZoom-desk27525

2 1/2" Carbon Steel Square Bar 1018 Cold Finish Part # 13231

2 1/2" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 13231
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$98.53 for 1
$98.53 ea.

Dimensions

  • Height: 2.5"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk13231

2 3/4" Carbon Steel Square Bar 1018 Cold Finish Part # 19648

2 3/4" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 19648
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$99.13 for 1
$99.13 ea.

Dimensions

  • Height: 2.75"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk19648

3" Carbon Steel Square Bar 1018 Cold Finish Part # 13232

3" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 13232
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$153.56 for 1
$153.56 ea.

Dimensions

  • Height: 3"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk13232

3 1/2" Carbon Steel Square Bar 1018 Cold Finish Part # 12717

3 1/2" Carbon Steel Square Bar 1018 Cold Finish -
Part #: 12717
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$223.78 for 1
$223.78 ea.

Dimensions

  • Height: 3.5"
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk12717

4mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24503

4mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24503

Pack of 6

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$166.11
$166.11 ea.

Dimensions

  • Height: 4mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24503

5mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24504

5mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24504

Pack of 10

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$156.91
$156.91 ea.

Dimensions

  • Height: 5mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24504

6mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24505

6mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24505

Pack of 6

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$145.19
$145.19 ea.

Dimensions

  • Height: 6mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24505

8mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24506

8mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24506

Pack of 4

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$157.32
$157.32 ea.

Dimensions

  • Height: 8mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24506

10mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24507

10mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24507

Pack of 3

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$152.67
$152.67 ea.

Dimensions

  • Height: 10mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24507

12mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24508

12mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24508

Pack of 2

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$149.77
$149.77 ea.

Dimensions

  • Height: 12mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24508

15mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24509

15mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24509

Pack of 2

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$213.81
$213.81 ea.

Dimensions

  • Height: 15mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24509

20mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] Part # 24510

20mm Carbon Steel Square Bar 1018 Cold Finish 60" Length [+/- 2"] -
Part #: 24510

Pack of 1

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$201.25
$201.25 ea.

Dimensions

  • Height: 20mm
Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108 , ASTM-A29

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
mild-steel-square-bar-1018-cold-finish-1superZoom-desk24510

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