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Alloy Steel Rectangle Bar 4140

-78 Products

Alloy Steel 4140 Product Guide Product

Alloy Steel Rectangle Bar 4140 is normally used for heavy-duty industrial applications. Also referred to as Chromoly steel, 4140 is known for strength, resistance to fracturing, abrasion, and impact in high stress applications. 

 

 

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2" X 3" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002563

2" X 3" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002563

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Sold & shipped by MSP Metals

Dimensions

  • Thickness: 2"
  • Width: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $130.75 ea.
  • 24″ (2 ft.) - $261.51 ea.
  • 36″ (3 ft.) - $392.26 ea.
  • 48″ (4 ft.) - $523.02 ea.
  • 60″ (5 ft.) - $653.77 ea.
  • 72″ (6 ft.) - $784.52 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

$130.75 ea.
$130.75 for 1

1 1/4" x 1 1/2" Alloy Steel Rectangle Bar 4140 - 
Part #: 28769

1 1/4" x 1 1/2" Alloy Steel Rectangle Bar 4140-
Part #: 28769

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Dimensions

  • Thickness: 1.25"
  • Width: 1.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

0.625" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002584

0.625" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002584

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 0.625"
  • Width: 8"
See all available dimensions for this product
  • 12″ (1 ft.) - $136.36 ea.
  • 24″ (2 ft.) - $272.72 ea.
  • 36″ (3 ft.) - $409.08 ea.
  • 48″ (4 ft.) - $545.44 ea.
  • 60″ (5 ft.) - $681.80 ea.
  • 72″ (6 ft.) - $818.16 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

$136.36 ea.
$136.36 for 1

1" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002595

1" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002595

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $147.45 ea.
  • 24″ (2 ft.) - $294.89 ea.
  • 36″ (3 ft.) - $442.34 ea.
  • 48″ (4 ft.) - $589.78 ea.
  • 60″ (5 ft.) - $737.23 ea.
  • 72″ (6 ft.) - $884.68 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

$147.45 ea.
$147.45 for 1

1.5" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002605

1.5" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002605

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.5"
  • Width: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $147.45 ea.
  • 24″ (2 ft.) - $294.89 ea.
  • 36″ (3 ft.) - $442.34 ea.
  • 48″ (4 ft.) - $589.78 ea.
  • 60″ (5 ft.) - $737.23 ea.
  • 72″ (6 ft.) - $884.68 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

$147.45 ea.
$147.45 for 1

3/4" x 2" Alloy Steel Rectangle Bar 4140-Annealed - 
Part #: 28436

3/4" x 2" Alloy Steel Rectangle Bar 4140-Annealed-
Part #: 28436

Click for more details

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

Dimensions

  • Thickness: 0.75"
  • Width: 2"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

3/8" x 1" Alloy Steel Rectangle Bar 4140 - 
Part #: 28042

3/8" x 1" Alloy Steel Rectangle Bar 4140-
Part #: 28042

Click for more details

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

Dimensions

  • Thickness: 0.375"
  • Width: 1"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

2.5" X 2.5" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002582

2.5" X 2.5" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002582

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 2.5"
  • Width: 2.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $153.71 ea.
  • 24″ (2 ft.) - $307.41 ea.
  • 36″ (3 ft.) - $461.12 ea.
  • 48″ (4 ft.) - $614.82 ea.
  • 60″ (5 ft.) - $768.53 ea.
  • 72″ (6 ft.) - $922.23 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

$153.71 ea.
$153.71 for 1

3/4" x 4" Alloy Steel Rectangle Bar 4140-Annealed - 
Part #: 28128

3/4" x 4" Alloy Steel Rectangle Bar 4140-Annealed-
Part #: 28128

Click for more details

Dimensions

  • Thickness: 0.75"
  • Width: 4"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

0.75" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002665

0.75" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002665

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 0.75"
  • Width: 8"
See all available dimensions for this product
  • 12″ (1 ft.) - $163.32 ea.
  • 24″ (2 ft.) - $326.65 ea.
  • 36″ (3 ft.) - $489.97 ea.
  • 48″ (4 ft.) - $653.30 ea.
  • 60″ (5 ft.) - $816.62 ea.
  • 72″ (6 ft.) - $979.95 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

$163.32 ea.
$163.32 for 1

0.375" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002573

0.375" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002573

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 0.375"
  • Width: 12"
See all available dimensions for this product
  • 12″ (1 ft.) - $163.67 ea.
  • 24″ (2 ft.) - $327.33 ea.
  • 36″ (3 ft.) - $490.99 ea.
  • 48″ (4 ft.) - $654.66 ea.
  • 60″ (5 ft.) - $818.33 ea.
  • 72″ (6 ft.) - $981.99 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

$163.67 ea.
$163.67 for 1

0.625" X 10" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002629

0.625" X 10" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002629

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 0.625"
  • Width: 10"
See all available dimensions for this product
  • 12″ (1 ft.) - $170.26 ea.
  • 24″ (2 ft.) - $318.24 ea.
  • 36″ (3 ft.) - $477.36 ea.
  • 48″ (4 ft.) - $636.48 ea.
  • 60″ (5 ft.) - $795.60 ea.
  • 72″ (6 ft.) - $954.72 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

$170.26 ea.
$170.26 for 1

2" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002599

2" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002599

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 2"
  • Width: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $174.57 ea.
  • 24″ (2 ft.) - $349.14 ea.
  • 36″ (3 ft.) - $523.71 ea.
  • 48″ (4 ft.) - $698.28 ea.
  • 60″ (5 ft.) - $872.85 ea.
  • 72″ (6 ft.) - $1,047.42 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

$174.57 ea.
$174.57 for 1

0.5" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002594

0.5" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002594

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 0.5"
  • Width: 12"
See all available dimensions for this product
  • 12″ (1 ft.) - $175.80 ea.
  • 24″ (2 ft.) - $351.60 ea.
  • 36″ (3 ft.) - $527.40 ea.
  • 48″ (4 ft.) - $703.20 ea.
  • 60″ (5 ft.) - $879.01 ea.
  • 72″ (6 ft.) - $1,054.81 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

$175.80 ea.
$175.80 for 1

1.25" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002550

1.25" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002550

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $185.00 ea.
  • 24″ (2 ft.) - $370.01 ea.
  • 36″ (3 ft.) - $555.01 ea.
  • 48″ (4 ft.) - $740.01 ea.
  • 60″ (5 ft.) - $925.02 ea.
  • 72″ (6 ft.) - $1,110.02 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

$185.00 ea.
$185.00 for 1

1" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002646

1" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002646

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1"
  • Width: 8"
See all available dimensions for this product
  • 12″ (1 ft.) - $196.83 ea.
  • 24″ (2 ft.) - $393.65 ea.
  • 36″ (3 ft.) - $590.48 ea.
  • 48″ (4 ft.) - $787.31 ea.
  • 60″ (5 ft.) - $984.13 ea.
  • 72″ (6 ft.) - $1,180.96 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

$196.83 ea.
$196.83 for 1

0.625" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002616

0.625" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002616

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 0.625"
  • Width: 12"
See all available dimensions for this product
  • 12″ (1 ft.) - $204.93 ea.
  • 24″ (2 ft.) - $409.85 ea.
  • 36″ (3 ft.) - $614.78 ea.
  • 48″ (4 ft.) - $819.71 ea.
  • 60″ (5 ft.) - $1,024.63 ea.
  • 72″ (6 ft.) - $1,229.56 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

$204.93 ea.
$204.93 for 1

1 3/4" x 3" Alloy Steel Rectangle Bar 4140-Normalized - 
Part #: 28820

1 3/4" x 3" Alloy Steel Rectangle Bar 4140-Normalized-
Part #: 28820

Click for more details

Placeholder for future product image

Dimensions

  • Thickness: 1.75"
  • Width: 3"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1.5" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002637

1.5" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002637

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.5"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $221.86 ea.
  • 24″ (2 ft.) - $443.73 ea.
  • 36″ (3 ft.) - $665.59 ea.
  • 48″ (4 ft.) - $887.46 ea.
  • 60″ (5 ft.) - $1,109.32 ea.
  • 72″ (6 ft.) - $1,331.19 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

$221.86 ea.
$221.86 for 1

0.75" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002572

0.75" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002572

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 0.75"
  • Width: 12"
See all available dimensions for this product
  • 12″ (1 ft.) - $245.76 ea.
  • 24″ (2 ft.) - $491.52 ea.
  • 36″ (3 ft.) - $737.27 ea.
  • 48″ (4 ft.) - $983.03 ea.
  • 60″ (5 ft.) - $1,228.79 ea.
  • 72″ (6 ft.) - $1,474.55 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

$245.76 ea.
$245.76 for 1

1.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002623

1.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002623

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 8"
See all available dimensions for this product
  • 12″ (1 ft.) - $246.21 ea.
  • 24″ (2 ft.) - $492.41 ea.
  • 36″ (3 ft.) - $738.62 ea.
  • 48″ (4 ft.) - $984.83 ea.
  • 60″ (5 ft.) - $1,231.04 ea.
  • 72″ (6 ft.) - $1,477.24 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

$246.21 ea.
$246.21 for 1

2" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002579

2" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002579

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 2"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $261.51 ea.
  • 24″ (2 ft.) - $523.02 ea.
  • 36″ (3 ft.) - $784.52 ea.
  • 48″ (4 ft.) - $1,046.03 ea.
  • 60″ (5 ft.) - $1,307.54 ea.
  • 72″ (6 ft.) - $1,569.05 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

$261.51 ea.
$261.51 for 1

1.5" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002607

1.5" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002607

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.5"
  • Width: 8"
See all available dimensions for this product
  • 12″ (1 ft.) - $295.59 ea.
  • 24″ (2 ft.) - $591.18 ea.
  • 36″ (3 ft.) - $886.76 ea.
  • 48″ (4 ft.) - $1,182.35 ea.
  • 60″ (5 ft.) - $1,477.94 ea.
  • 72″ (6 ft.) - $1,773.53 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

$295.59 ea.
$295.59 for 1

1" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002639

1" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002639

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1"
  • Width: 12"
See all available dimensions for this product
  • 12″ (1 ft.) - $295.59 ea.
  • 24″ (2 ft.) - $591.18 ea.
  • 36″ (3 ft.) - $886.76 ea.
  • 48″ (4 ft.) - $1,182.35 ea.
  • 60″ (5 ft.) - $1,477.94 ea.
  • 72″ (6 ft.) - $1,773.53 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

$295.59 ea.
$295.59 for 1

2" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002641

2" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002641

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 2"
  • Width: 8"
See all available dimensions for this product
  • 12″ (1 ft.) - $348.45 ea.
  • 24″ (2 ft.) - $696.89 ea.
  • 36″ (3 ft.) - $1,045.34 ea.
  • 48″ (4 ft.) - $1,393.78 ea.
  • 60″ (5 ft.) - $1,742.23 ea.
  • 72″ (6 ft.) - $2,090.67 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

$348.45 ea.
$348.45 for 1
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