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Alloy Steel Rectangle Bar 4340

-14 Products

Alloy Steel 4340 Product Guide Product   | Alloy Steel 4340 Rectangle Bar Tolerances product

Alloy Steel 4340 Flat Bar is normally used for aerospace, heavy-duty industrial, and automotive applications. 4340 steel stock has high strength, toughness, wear resistance, and fatigue strength. It can be machined in all states other than hardened and it is easily welded. 4340 flat bar stock is available in full size. Please contact sales@onlinemetals.com for a quote in a custom size.

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1/4" x 2" Alloy Steel Rectangle Bar 4340 Cold Drawn - 
Part #: 25678

1/4" x 2" Alloy Steel Rectangle Bar 4340 Cold Drawn -
Part #: 25678

Click for more details

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Dimensions

  • Thickness: 0.25"
  • Width: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $40.81 ea.
  • 24″ (2 ft.) - $79.35 ea.
  • 36″ (3 ft.) - $108.34 ea.
  • 48″ (4 ft.) - $135.05 ea.
  • 72″ (6 ft.) - $190.75 ea.
  • 96″ (8 ft.) - $237.58 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.

QTY

$40.81 ea.
$40.81 for 1

1/2" x 2" Alloy Steel Rectangle Bar 4340 Cold Drawn - 
Part #: 25679

1/2" x 2" Alloy Steel Rectangle Bar 4340 Cold Drawn -
Part #: 25679

Click for more details

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

Dimensions

  • Thickness: 0.5"
  • Width: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $75.08 ea.
  • 24″ (2 ft.) - $146.08 ea.
  • 36″ (3 ft.) - $199.35 ea.
  • 48″ (4 ft.) - $248.57 ea.
  • 72″ (6 ft.) - $351.10 ea.
  • 96″ (8 ft.) - $437.28 ea.
  • 144″ (12 ft.) - $544.35 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.

QTY

$75.08 ea.
$75.08 for 1

1/2" x 3" Alloy Steel Rectangle Bar 4340 Normalized, Tempered, and Cold Drawn - 
Part #: 28842

1/2" x 3" Alloy Steel Rectangle Bar 4340 Normalized, Tempered, and Cold Drawn-
Part #: 28842

Click for more details

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Dimensions

  • Thickness: 0.5"
  • Width: 3"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

3/4" x 1" Alloy Steel Rectangle Bar 4340 - 
Part #: 12788

3/4" x 1" Alloy Steel Rectangle Bar 4340 -
Part #: 12788

Click for more details

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

Dimensions

  • Thickness: 0.75"
  • Width: 1"
See all available dimensions for this product
  • 12″ (1 ft.) - $185.19 ea.
  • 24″ (2 ft.) - $360.35 ea.
  • 36″ (3 ft.) - $491.83 ea.
  • 48″ (4 ft.) - $613.23 ea.
  • 72″ (6 ft.) - $866.16 ea.
  • 84″ (7 ft.) - $447.58 ea.
  • 96″ (8 ft.) - $1,078.78 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

$185.19 ea.
$185.19 for 1

3/4" x 1 1/2" Alloy Steel Rectangle Bar 4340 - 
Part #: 26418

3/4" x 1 1/2" Alloy Steel Rectangle Bar 4340-
Part #: 26418

Click for more details

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

Dimensions

  • Thickness: 0.75"
  • 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.

1" x 2" Alloy Steel Rectangle Bar 4340 Cold Drawn - 
Part #: 25673

1" x 2" Alloy Steel Rectangle Bar 4340 Cold Drawn -
Part #: 25673

Click for more details

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

Dimensions

  • Thickness: 1"
  • Width: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $173.46 ea.
  • 24″ (2 ft.) - $337.46 ea.
  • 36″ (3 ft.) - $460.62 ea.
  • 48″ (4 ft.) - $574.32 ea.
  • 72″ (6 ft.) - $811.21 ea.
  • 96″ (8 ft.) - $1,010.33 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.

QTY

$173.46 ea.
$173.46 for 1

1" x 3" Alloy Steel Rectangle Bar 4340 Cold Drawn - 
Part #: 29064

1" x 3" Alloy Steel Rectangle Bar 4340 Cold Drawn-
Part #: 29064

Click for more details

Dimensions

  • Thickness: 1"
  • 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" x 2 1/2" Alloy Steel Rectangle Bar 4340 Normalized, Tempered, and Cold Drawn - 
Part #: 28207

1" x 2 1/2" Alloy Steel Rectangle Bar 4340 Normalized, Tempered, and Cold Drawn-
Part #: 28207

Click for more details

Dimensions

  • Thickness: 1"
  • Width: 2.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 4" Alloy Steel Rectangle Bar 4340 - 
Part #: 27859

1 1/4" x 4" Alloy Steel Rectangle Bar 4340-
Part #: 27859

Click for more details

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

Dimensions

  • Thickness: 1.25"
  • Width: 4"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/2" x 3" Alloy Steel Rectangle Bar 4340 Normalized, Tempered, and Cold Drawn - 
Part #: 28810

1 1/2" x 3" Alloy Steel Rectangle Bar 4340 Normalized, Tempered, and Cold Drawn-
Part #: 28810

Click for more details

Placeholder for future product image

Dimensions

  • Thickness: 1.5"
  • Width: 3"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

**Special Buy** 1 3/4" x 3" Alloy Steel Rectangle Bar 4340 - 
Part #: 23157

**Special Buy** 1 3/4" x 3" Alloy Steel Rectangle Bar 4340-
Part #: 23157

Click for more details

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

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.

2" x 6" Alloy Steel Rectangle Bar 4340 Hot Rolled - 
Part #: 25681

2" x 6" Alloy Steel Rectangle Bar 4340 Hot Rolled -
Part #: 25681

Click for more details

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

Dimensions

  • Thickness: 2"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $466.12 ea.
  • 48″ (4 ft.) - $1,686.94 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.

QTY

$466.12 ea.
$466.12 for 1

2 1/2" x 3" Alloy Steel Rectangle Bar 4340 - 
Part #: 25393

2 1/2" x 3" Alloy Steel Rectangle Bar 4340 -
Part #: 25393

Click for more details

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

Dimensions

  • Thickness: 2.5"
  • Width: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $393.98 ea.
  • 24″ (2 ft.) - $744.67 ea.
  • 36″ (3 ft.) - $1,099.69 ea.
  • 48″ (4 ft.) - $1,425.84 ea.
  • 72″ (6 ft.) - $1,965.59 ea.
  • 96″ (8 ft.) - $2,516.90 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.

QTY

$393.98 ea.
$393.98 for 1

3" x 6" Alloy Steel Rectangle Bar 4340 Hot Rolled - 
Part #: 25682

3" x 6" Alloy Steel Rectangle Bar 4340 Hot Rolled -
Part #: 25682

Click for more details

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

Dimensions

  • Thickness: 3"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,076.41 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.

QTY

$1,076.41 ea.
$1,076.41 for 1

Can't find what you're looking for?

Contact us for a custom quote