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Carbon Steel Rectangle Bar

-690 Products

Carbon Steel Product Guide Product

Carbon steel flat bar is one of the most widely used materials on the planet. You'll find rectangular bar in everything from building construction to household appliances. We carry carbon steel flat bar in A36, 1018, 1045, 1075, 1084, 1095, 11L17, 15N20, 26C3, 52100, and 80CrV2. Most cold-rolled steel flat bar stock is available in full-size and custom-cut lengths.

 

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

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3/16" x 3/8" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 6812

3/16" x 3/8" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6812

Click for more details

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Dimensions

  • Thickness: 0.1875"
  • Width: 0.375"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $5.89 ea.
  • 36″ (3 ft.) - $8.06 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $10.06 ea.
  • 72″ (6 ft.) - $14.19 ea.
  • 96″ (8 ft.) - $17.67 ea.
  • 144″ (12 ft.) - $22.00 ea.
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.
Create Custom Cut

QTY

$4.50 ea.
$4.50 for 1

1/8" x 5" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 6810

1/8" x 5" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6810

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 0.125"
  • Width: 5"
See all available dimensions for this product
  • 12″ (1 ft.) - $17.54 ea.
  • 24″ (2 ft.) - $34.16 ea.
  • 36″ (3 ft.) - $46.62 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $58.12 ea.
  • 72″ (6 ft.) - $82.10 ea.
  • 96″ (8 ft.) - $102.26 ea.
  • 144″ (12 ft.) - $127.28 ea.
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.
Create Custom Cut

QTY

$17.54 ea.
$17.54 for 1

1/8" x 6" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 19619

1/8" x 6" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 19619

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 0.125"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $18.14 ea.
  • 24″ (2 ft.) - $35.29 ea.
  • 36″ (3 ft.) - $48.20 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $60.09 ea.
  • 72″ (6 ft.) - $84.88 ea.
  • 96″ (8 ft.) - $105.70 ea.
  • 144″ (12 ft.) - $131.58 ea.
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.
Create Custom Cut

QTY

$18.14 ea.
$18.14 for 1

5/16" x 1" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 19714

5/16" x 1" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 19714

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 1"
See all available dimensions for this product
  • 12″ (1 ft.) - $7.18 ea.
  • 24″ (2 ft.) - $13.97 ea.
  • 36″ (3 ft.) - $19.10 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $23.81 ea.
  • 72″ (6 ft.) - $33.62 ea.
  • 96″ (8 ft.) - $41.89 ea.
  • 144″ (12 ft.) - $52.14 ea.
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.
Create Custom Cut

QTY

$7.18 ea.
$7.18 for 1

3/4" x 1 1/2" Carbon Steel Rectangle Bar A36 Hot Rolled - 
Part #: 19924

3/4" x 1 1/2" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: 19924

Click for more details

mild-steel-rectangle-bar-hot-rolled-a36-1superZoom

Dimensions

  • Thickness: 0.75"
  • Width: 1.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $10.79 ea.
  • 24″ (2 ft.) - $20.96 ea.
  • 36″ (3 ft.) - $28.63 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $35.67 ea.
  • 72″ (6 ft.) - $50.39 ea.
  • 96″ (8 ft.) - $62.76 ea.
  • 144″ (12 ft.) - $78.14 ea.
  • 240″ (20 ft.) - $130.22 ea. -LTL freight rates apply
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.
Create Custom Cut

QTY

$10.79 ea.
$10.79 for 1

2" x 3" Carbon Steel Rectangle Bar A36 Hot Rolled - 
Part #: 19973

2" x 3" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: 19973

Click for more details

mild-steel-rectangle-bar-hot-rolled-a36-1superZoom

Dimensions

  • Thickness: 2"
  • Width: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $55.09 ea.
  • 24″ (2 ft.) - $104.10 ea.
  • 36″ (3 ft.) - $153.75 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $199.33 ea.
  • 72″ (6 ft.) - $274.81 ea.
  • 144″ (12 ft.) - $484.22 ea.
  • 240″ (20 ft.) - $807.04 ea. -LTL freight rates apply
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.
Create Custom Cut

QTY

$55.09 ea.
$55.09 for 1

3/4" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 20755

3/4" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish-
Part #: 20755

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 0.75"
  • Width: 1.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

2 1/2" x 3" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 21980

2 1/2" x 3" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 21980

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 2.5"
  • Width: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $138.38 ea.
  • 24″ (2 ft.) - $261.53 ea.
  • 36″ (3 ft.) - $386.23 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $500.77 ea.
  • 72″ (6 ft.) - $690.33 ea.
  • 96″ (8 ft.) - $883.95 ea.
  • 144″ (12 ft.) - $1,216.44 ea.
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.
Create Custom Cut

QTY

$138.38 ea.
$138.38 for 1

3/8" x 12" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 22120

3/8" x 12" Carbon Steel Rectangle Bar 1018 Cold Finish-
Part #: 22120

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 0.375"
  • Width: 12"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.
SALE! Save BIG on end of Year Deals!

3/4" x 2 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 22235

3/4" x 2 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 22235

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 0.75"
  • Width: 2.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $26.28 ea.
  • 24″ (2 ft.) - $51.10 ea.
  • 36″ (3 ft.) - $69.76 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $86.97 ea.
  • 72″ (6 ft.) - $122.83 ea.
  • 96″ (8 ft.) - $152.99 ea.
  • 144″ (12 ft.) - $190.44 ea.
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.
Create Custom Cut

QTY

$26.28 ea.
$26.28 for 1

1 3/4" x 2" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 22238

1 3/4" x 2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 22238

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 1.75"
  • Width: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $73.16 ea.
  • 24″ (2 ft.) - $138.29 ea.
  • 36″ (3 ft.) - $204.19 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $264.76 ea.
  • 72″ (6 ft.) - $364.99 ea.
  • 96″ (8 ft.) - $467.35 ea.
  • 144″ (12 ft.) - $643.14 ea.
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.
Create Custom Cut

QTY

$73.16 ea.
$73.16 for 1

1" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 22236

1" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 22236

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 1"
  • Width: 1.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $28.57 ea.
  • 24″ (2 ft.) - $55.55 ea.
  • 36″ (3 ft.) - $75.83 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $94.56 ea.
  • 72″ (6 ft.) - $133.54 ea.
  • 96″ (8 ft.) - $166.34 ea.
  • 144″ (12 ft.) - $207.06 ea.
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.
Create Custom Cut

QTY

$28.57 ea.
$28.57 for 1

1 1/2" x 3 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 22237

1 1/2" x 3 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 22237

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 1.5"
  • Width: 3.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $86.35 ea.
  • 24″ (2 ft.) - $163.21 ea.
  • 36″ (3 ft.) - $241.02 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $312.50 ea.
  • 72″ (6 ft.) - $430.80 ea.
  • 96″ (8 ft.) - $551.63 ea.
  • 144″ (12 ft.) - $759.12 ea.
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.
Create Custom Cut

QTY

$86.35 ea.
$86.35 for 1

1 3/4" x 2 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 22239

1 3/4" x 2 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 22239

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 1.75"
  • Width: 2.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $98.63 ea.
  • 24″ (2 ft.) - $186.46 ea.
  • 36″ (3 ft.) - $275.34 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $357.01 ea.
  • 72″ (6 ft.) - $492.14 ea.
  • 96″ (8 ft.) - $630.17 ea.
  • 144″ (12 ft.) - $867.22 ea.
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.
Create Custom Cut

QTY

$98.63 ea.
$98.63 for 1

2 1/2" x 3 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 22534

2 1/2" x 3 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 22534

Click for more details

mild-steel-rectangle-bar-1018-cold-finish-1superZoom

Dimensions

  • Thickness: 2.5"
  • Width: 3.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $166.34 ea.
  • 24″ (2 ft.) - $314.37 ea.
  • 36″ (3 ft.) - $464.26 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $601.94 ea.
  • 72″ (6 ft.) - $829.82 ea.
  • 96″ (8 ft.) - $1,062.55 ea.
  • 144″ (12 ft.) - $1,462.22 ea.
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.
Create Custom Cut

QTY

$166.34 ea.
$166.34 for 1

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 7352

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7352

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
See all available dimensions for this product
  • 12″ (1 ft.) - $5.43 ea.
  • 24″ (2 ft.) - $10.56 ea.
  • 36″ (3 ft.) - $14.42 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $17.97 ea.
  • 72″ (6 ft.) - $25.39 ea.
  • 96″ (8 ft.) - $31.62 ea.
  • 144″ (12 ft.) - $39.36 ea.
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.
Create Custom Cut

QTY

$5.43 ea.
$5.43 for 1

3mm x 6mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24455

3mm x 6mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24455

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 3mm
  • Width: 6mm
See all available dimensions for this product

Pack of 10

QTY

$101.56 ea.
$101.56

3mm x 25mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24458

3mm x 25mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24458

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 3mm
  • Width: 25mm
See all available dimensions for this product

Pack of 4

QTY

$139.94 ea.
$139.94

3mm x 20mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24457

3mm x 20mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24457

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 3mm
  • Width: 20mm
See all available dimensions for this product

Pack of 4

QTY

$117.55 ea.
$117.55

3mm x 12mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24456

3mm x 12mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24456

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 3mm
  • Width: 12mm
See all available dimensions for this product

Pack of 10

QTY

$131.32 ea.
$131.32

4mm x 6mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24459

4mm x 6mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24459

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 4mm
  • Width: 6mm
See all available dimensions for this product

Pack of 10

QTY

$95.42 ea.
$95.42

4mm x 12mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24460

4mm x 12mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24460

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 4mm
  • Width: 12mm
See all available dimensions for this product

Pack of 6

QTY

$139.06 ea.
$139.06

4mm x 25mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24462

4mm x 25mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24462

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 4mm
  • Width: 25mm
See all available dimensions for this product

Pack of 4

QTY

$150.06 ea.
$150.06

4mm x 20mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24461

4mm x 20mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24461

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 4mm
  • Width: 20mm
See all available dimensions for this product

Pack of 4

QTY

$99.92 ea.
$99.92

5mm x 6mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] - 
Part #: 24463

5mm x 6mm Carbon Steel Rectangle Bar 1005/1018 Metric 60" Length [+/- 2"] -
Part #: 24463

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 5mm
  • Width: 6mm
See all available dimensions for this product

Pack of 10

QTY

$89.47 ea.
$89.47

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