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Alloy Steel Round Bar 4340

-51 Products

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

Alloy Steel Round Bar 4340 is normally used for the aerospace automotive, and natural gas/petroleum/oil applications. 4340 steel offers high strength, impact control, and machinability.

 

We also carry 4340 round bar that is Vacuum Arc Remelted (VAR).

 

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2" Alloy Steel Round Bar 4340-Annealed Hot Rolled - 
Part #: 25269

2" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25269

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alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $105.46 ea.
  • 24″ (2 ft.) - $199.31 ea.
  • 36″ (3 ft.) - $294.34 ea.
  • 48″ (4 ft.) - $381.62 ea.
  • 72″ (6 ft.) - $526.07 ea.
  • 96″ (8 ft.) - $673.62 ea.
  • 144″ (12 ft.) - $927.00 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

$105.46 ea.
$105.46 for 1

2 1/4" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7401

2 1/4" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7401

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alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 2.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $120.51 ea.
  • 24″ (2 ft.) - $227.79 ea.
  • 36″ (3 ft.) - $336.38 ea.
  • 48″ (4 ft.) - $436.15 ea.
  • 72″ (6 ft.) - $601.25 ea.
  • 96″ (8 ft.) - $769.89 ea.
  • 144″ (12 ft.) - $1,059.48 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

$120.51 ea.
$120.51 for 1

2 3/8" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7402

2 3/8" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7402

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alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 2.375"
See all available dimensions for this product
  • 12″ (1 ft.) - $151.92 ea.
  • 24″ (2 ft.) - $287.15 ea.
  • 36″ (3 ft.) - $424.03 ea.
  • 48″ (4 ft.) - $549.80 ea.
  • 72″ (6 ft.) - $757.93 ea.
  • 96″ (8 ft.) - $970.49 ea.
  • 144″ (12 ft.) - $1,335.56 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

$151.92 ea.
$151.92 for 1

2 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7403

2 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7403

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alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 2.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $139.72 ea.
  • 24″ (2 ft.) - $264.06 ea.
  • 36″ (3 ft.) - $389.97 ea.
  • 48″ (4 ft.) - $505.63 ea.
  • 72″ (6 ft.) - $697.03 ea.
  • 96″ (8 ft.) - $892.54 ea.
  • 144″ (12 ft.) - $1,228.24 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

$139.72 ea.
$139.72 for 1

2 3/4" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7405

2 3/4" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7405

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 2.75"
See all available dimensions for this product
  • 12″ (1 ft.) - $237.08 ea.
  • 24″ (2 ft.) - $448.10 ea.
  • 36″ (3 ft.) - $661.73 ea.
  • 48″ (4 ft.) - $858.00 ea.
  • 72″ (6 ft.) - $1,182.79 ea.
  • 96″ (8 ft.) - $1,514.52 ea.
  • 144″ (12 ft.) - $2,084.21 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

$237.08 ea.
$237.08 for 1

3" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7406

3" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7406

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alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $305.67 ea.
  • 24″ (2 ft.) - $577.74 ea.
  • 36″ (3 ft.) - $853.18 ea.
  • 48″ (4 ft.) - $1,106.21 ea.
  • 144″ (12 ft.) - $2,687.16 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

$305.67 ea.
$305.67 for 1

3 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered - 
Part #: 28458

3 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 28458

Click for more details

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Dimensions

  • Diameter: 3.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

3 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7408

3 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned-
Part #: 7408

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 3.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

3 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled - 
Part #: 25270

3 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25270

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 3.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $486.91 ea.
  • 24″ (2 ft.) - $920.30 ea.
  • 36″ (3 ft.) - $1,359.06 ea.
  • 48″ (4 ft.) - $1,762.14 ea.
  • 72″ (6 ft.) - $2,429.17 ea.
  • 96″ (8 ft.) - $3,110.47 ea.
  • 144″ (12 ft.) - $4,280.47 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

$486.91 ea.
$486.91 for 1

3 1/2" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered - 
Part #: 28889

3 1/2" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 28889

Click for more details

Placeholder for future product image

Dimensions

  • Diameter: 3.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7410

4" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7410

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $463.35 ea.
  • 24″ (2 ft.) - $875.77 ea.
  • 36″ (3 ft.) - $1,293.30 ea.
  • 48″ (4 ft.) - $1,676.87 ea.
  • 72″ (6 ft.) - $2,311.62 ea.
  • 96″ (8 ft.) - $2,959.96 ea.
  • 144″ (12 ft.) - $4,073.35 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.
Create Custom Cut

QTY

$463.35 ea.
$463.35 for 1

4 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7411

4 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned-
Part #: 7411

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 4.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

5" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7413

5" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7413

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alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 5"
See all available dimensions for this product
  • 12″ (1 ft.) - $531.39 ea.
  • 24″ (2 ft.) - $1,004.37 ea.
  • 144″ (12 ft.) - $4,671.54 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

$531.39 ea.
$531.39 for 1

5 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7415

5 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7415

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 5.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $733.17 ea.
  • 24″ (2 ft.) - $1,385.80 ea.
  • 36″ (3 ft.) - $2,046.45 ea.
  • 48″ (4 ft.) - $2,653.42 ea.
  • 72″ (6 ft.) - $3,657.86 ea.
  • 96″ (8 ft.) - $4,683.77 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

$733.17 ea.
$733.17 for 1

5 3/4" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7416

5 3/4" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7416

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 5.75"
See all available dimensions for this product
  • 12″ (1 ft.) - $955.28 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

$955.28 ea.
$955.28 for 1

6" Alloy Steel Round Bar 4340-Annealed Hot Rolled Rough Turned - 
Part #: 7417

6" Alloy Steel Round Bar 4340-Annealed Hot Rolled Rough Turned -
Part #: 7417

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alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $924.95 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

$924.95 ea.
$924.95 for 1

6" Alloy Steel Round Bar 4340-Normalized Hot Rolled - 
Part #: 27148

6" Alloy Steel Round Bar 4340-Normalized Hot Rolled-
Part #: 27148

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 6"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

6" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 27142

6" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 27142

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,035.00 ea.
  • 24″ (2 ft.) - $1,956.26 ea.
  • 36″ (3 ft.) - $2,888.89 ea.
  • 48″ (4 ft.) - $3,745.71 ea.
  • 72″ (6 ft.) - $5,163.64 ea.
  • 96″ (8 ft.) - $6,611.87 ea.
  • 144″ (12 ft.) - $9,098.90 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.
Create Custom Cut

QTY

$1,035.00 ea.
$1,035.00 for 1

6 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered - 
Part #: 29025

6 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 29025

Click for more details

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Dimensions

  • Diameter: 6.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

6 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7419

6 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7419

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 6.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,411.10 ea.
  • 24″ (2 ft.) - $2,667.18 ea.
  • 36″ (3 ft.) - $3,938.73 ea.
  • 48″ (4 ft.) - $5,106.91 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

$1,411.10 ea.
$1,411.10 for 1

8" Alloy Steel Round Bar 4340-Normalized Rough Turned - 
Part #: 7424

8" Alloy Steel Round Bar 4340-Normalized Rough Turned-
Part #: 7424

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 8"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

8" Alloy Steel Round Bar 4340-Annealed Rough Turned - 
Part #: 27846

8" Alloy Steel Round Bar 4340-Annealed Rough Turned-
Part #: 27846

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 8"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

8 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled - 
Part #: 27112

8 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 27112

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 8.5"
See all available dimensions for this product
  • 72″ (6 ft.) - $7,108.05 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

$7,108.05 ea.
$7,108.05 for 1

9" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered - 
Part #: 28318

9" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 28318

Click for more details

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Dimensions

  • Diameter: 9"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

10" Alloy Steel Round Bar 4340-Hot Rolled Quenched & Tempered - 
Part #: 27854

10" Alloy Steel Round Bar 4340-Hot Rolled Quenched & Tempered-
Part #: 27854

Click for more details

alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Dimensions

  • Diameter: 10"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.
  • 1
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