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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
Select a Cut Size
  • 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

Update
$40.81 for 1
$40.81 ea.
Expand Details

Dimensions

  • Thickness: 0.25"
  • Width: 2"
Click for more details mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): AMS-6415 , ASTM-A108 , AMS-6409 , AMS-6484

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details mild-steel-key-stock-rectangle-1superZoom

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
Select a Cut Size
  • 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

Update
$75.08 for 1
$75.08 ea.
Expand Details

Dimensions

  • Thickness: 0.5"
  • Width: 2"
Click for more details mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): AMS-6415 , ASTM-A108 , AMS-6409 , AMS-6484

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details mild-steel-key-stock-rectangle-1superZoom

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
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
Select a Size or Custom Cut
  • + Create Custom Cut
  • 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.

QTY

Update
$185.19 for 1
$185.19 ea.
Expand Details

Dimensions

  • Thickness: 0.75"
  • Width: 1"
Click for more details mild-steel-key-stock-rectangle-1superZoom

Key Features

CUSTOM CUT
View more product details
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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
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
Select a Cut Size
  • 12″ (1 ft.) - $175.16 ea.
  • 24″ (2 ft.) - $340.80 ea.
  • 36″ (3 ft.) - $465.19 ea.
  • 48″ (4 ft.) - $580.03 ea.
  • 72″ (6 ft.) - $819.22 ea.
  • 96″ (8 ft.) - $1,020.34 ea.
  • 144″ (12 ft.) - $1,270.11 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

Update
$175.16 for 1
$175.16 ea.
Expand Details

Dimensions

  • Thickness: 1"
  • Width: 2"
Click for more details mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): AMS-6415 , ASTM-A108 , AMS-6409 , AMS-6484

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details mild-steel-key-stock-rectangle-1superZoom

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
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

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

1" x 3" Alloy Steel Rectangle Bar 4340 Cold Drawn-
Part #: 29064
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
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
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
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
Select a Cut Size
  • 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

Update
$466.12 for 1
$466.12 ea.
Expand Details

Dimensions

  • Thickness: 2"
  • Width: 6"
Click for more details mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , ASTM-A108 , AMS-6409 , AMS-6484

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details mild-steel-key-stock-rectangle-1superZoom

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

2 1/2" x 3" Alloy Steel Rectangle Bar 4340 -
Part #: 25393
Select a Cut Size
  • 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

Update
$393.98 for 1
$393.98 ea.
Expand Details

Dimensions

  • Thickness: 2.5"
  • Width: 3"
Click for more details mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): AMS-6415 , ASTM-A108 , AMS-6409 , AMS-6484

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details mild-steel-key-stock-rectangle-1superZoom

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

3" x 6" Alloy Steel Rectangle Bar 4340 Hot Rolled -
Part #: 25682
Select a Cut Size
  • 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

Update
$1,076.41 for 1
$1,076.41 ea.
Expand Details

Dimensions

  • Thickness: 3"
  • Width: 6"
Click for more details mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , ASTM-A108 , AMS-6409 , AMS-6484

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details mild-steel-key-stock-rectangle-1superZoom

Can't find what you're looking for?

Contact us for a custom quote