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Round Bar

-2948 Products

We carry metal round bar stock in alloy steel, aluminum, beryllium copper, brass, bronze, carbon fiber, carbon steel, cast iron, copper, maraging steel, nickel silver, nickel, plastic, stainless steel, and titanium. Most of our metal round bar is available in full size and custom cut lengths. Whether you're looking for a perfectly sized bright bar or a large quantity of durable plastic, you can price and order round bar from Online Metals and enjoy the convenience of delivery directly to you.

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4" Bronze Round Bar Sae 841 Oil-Impregnated Oversized - 
Part #: 15904

4" Bronze Round Bar Sae 841 Oil-Impregnated Oversized -
Part #: 15904

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bronze-round-bar-sae-oil-impregnated-863-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 6.5″ (6.5 in.) - $666.16 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.

QTY

$666.16 ea.
$666.16 for 1

4" Tin Bronze Round Bar 937 - 
Part #: 23788

4" Tin Bronze Round Bar 937 -
Part #: 23788

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bronze-round-bar-932-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,342.53 ea.
  • 24″ (2 ft.) - $2,537.56 ea.
  • 36″ (3 ft.) - $3,747.31 ea.
  • 48″ (4 ft.) - $4,858.74 ea.
  • 72″ (6 ft.) - $6,697.98 ea.
  • 96″ (8 ft.) - $8,576.56 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

$1,342.53 ea.
$1,342.53 for 1

4" Stainless Round Bar 304/304L-Annealed Cold Finish - 
Part #: 123

4" Stainless Round Bar 304/304L-Annealed Cold Finish -
Part #: 123

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Stainless Round Bar 304

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $335.98 ea.
  • 24″ (2 ft.) - $635.06 ea.
  • 36″ (3 ft.) - $937.80 ea.
  • 144″ (12 ft.) - $2,953.68 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

$335.98 ea.
$335.98 for 1

4" Stainless Round Bar Nitronic 60 - 
Part #: 10726

4" Stainless Round Bar Nitronic 60-
Part #: 10726

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Dimensions

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

4" Stainless Round Bar 416 Cold Finish - 
Part #: 2079

4" Stainless Round Bar 416 Cold Finish -
Part #: 2079

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stainless-round-bar-416-cold-finish-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $278.05 ea.
  • 24″ (2 ft.) - $525.54 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

$278.05 ea.
$278.05 for 1

4" Alloy Steel Round Bar 8620-Hot Rolled - 
Part #: 15024

4" Alloy Steel Round Bar 8620-Hot Rolled -
Part #: 15024

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alloy-steel-round-bar-8620-hot-rolled-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $254.55 ea.
  • 24″ (2 ft.) - $481.12 ea.
  • 36″ (3 ft.) - $710.49 ea.
  • 144″ (12 ft.) - $2,237.72 ea.
  • 240″ (20 ft.) - $3,729.54 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

$254.55 ea.
$254.55 for 1

4" Stainless Round Bar 17-4 PH Cond. A Rough Turned - 
Part #: 7306

4" Stainless Round Bar 17-4 PH Cond. A Rough Turned -
Part #: 7306

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stainless-round-bar-17-4-annealed-rough-turned-ph-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $445.41 ea.
  • 24″ (2 ft.) - $841.86 ea.
  • 36″ (3 ft.) - $1,243.21 ea.
  • 48″ (4 ft.) - $1,611.94 ea.
  • 72″ (6 ft.) - $2,222.12 ea.
  • 96″ (8 ft.) - $2,845.36 ea.
  • 144″ (12 ft.) - $3,915.63 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

$445.41 ea.
$445.41 for 1

4" Manganese Bronze Round Bar 863 Oversized - 
Part #: 15878

4" Manganese Bronze Round Bar 863 Oversized -
Part #: 15878

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bronze-round-bar-sae-oil-impregnated-863-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 13″ (13 in.) - $764.35 ea.
  • 26″ (26 in.) - $1,568.95 ea.
  • 36″ (3 ft.) - $1,615.30 ea.
  • 39″ (39 in.) - $2,172.38 ea.
  • 52″ (52 in.) - $2,815.91 ea.
  • 65″ (65 in.) - $3,459.57 ea.
  • 72″ (6 ft.) - $3,230.61 ea.
  • 78″ (78 in.) - $4,030.83 ea.
  • 91″ (91 in.) - $4,590.03 ea.
  • 105″ (105 in.) - $5,198.75 ea.
  • 144″ (12 ft.) - $6,461.23 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.

QTY

$764.35 ea.
$764.35 for 1

4" Nickel Aluminum Bronze Round Bar 630 - 
Part #: 15217

4" Nickel Aluminum Bronze Round Bar 630 -
Part #: 15217

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bronze-round-bar-630-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,284.22 ea.
  • 24″ (2 ft.) - $2,427.29 ea.
  • 36″ (3 ft.) - $3,584.50 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

$1,284.22 ea.
$1,284.22 for 1

4" Phosphor Bronze Round Bar 544-H04 - 
Part #: 21378

4" Phosphor Bronze Round Bar 544-H04-
Part #: 21378

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bronze-round-bar-544-h04-1superZoom

Dimensions

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

4" Bearing Bronze Round Bar 932 (SAE 660) Cast Oversized - 
Part #: 10544

4" Bearing Bronze Round Bar 932 (SAE 660) Cast Oversized -
Part #: 10544

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bronze-round-bar-932-1superZoom

Dimensions

  • Diameter: 4"
  • Ships In: 2-3 Business Days From Ohio
See all available dimensions for this product
  • 13″ (13 in.) - $721.34 ea.
  • 26″ (26 in.) - $1,480.65 ea.
  • 39″ (39 in.) - $2,050.13 ea.
  • 52″ (52 in.) - $2,657.59 ea.
  • 65″ (65 in.) - $3,265.02 ea.
  • 78″ (78 in.) - $3,804.14 ea.
  • 91″ (91 in.) - $4,331.86 ea.
  • 105″ (105 in.) - $4,906.30 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

$721.34 ea.
$721.34 for 1

4" Aluminum Bronze Round Bar 954 Cast Oversized - 
Part #: 14398

4" Aluminum Bronze Round Bar 954 Cast Oversized -
Part #: 14398

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bronze-round-bar-954-1superZoom

Dimensions

  • Diameter: Finishes To 4"
  • Ships In: 2-3 Business Days From Ohio
See all available dimensions for this product
  • 12″ (1 ft.) - $694.32 ea.
  • 24″ (2 ft.) - $1,425.16 ea.
  • 36″ (3 ft.) - $1,973.30 ea.
  • 48″ (4 ft.) - $2,557.98 ea.
  • 72″ (6 ft.) - $3,661.56 ea.
  • 144″ (12 ft.) - $6,928.46 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

$694.32 ea.
$694.32 for 1

4" Carbon Steel Round Bar 1144-Stress Relieved Cold Finish - 
Part #: 7674

4" Carbon Steel Round Bar 1144-Stress Relieved Cold Finish -
Part #: 7674

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carbon-round-bar-1144-stressproof-cold-drawn-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $317.94 ea.
  • 24″ (2 ft.) - $600.93 ea.
  • 36″ (3 ft.) - $887.45 ea.
  • 144″ (12 ft.) - $2,795.08 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

$317.94 ea.
$317.94 for 1

4" Copper Round Bar 101-H04 - 
Part #: 14618

4" Copper Round Bar 101-H04 -
Part #: 14618

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copper-round-bar-101-h04-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 11″ (11 in.) - $896.35 ea.
  • 12″ (1 ft.) - $1,308.33 ea.
  • 24″ (2 ft.) - $2,472.88 ea.
  • 144″ (12 ft.) - $11,501.79 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

$896.35 ea.
$896.35 for 1

4" Copper Round Bar 110-H04 - 
Part #: 1643

4" Copper Round Bar 110-H04 -
Part #: 1643

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copper-round-bar-110-h04-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,118.43 ea.
  • 24″ (2 ft.) - $2,113.95 ea.
  • 144″ (12 ft.) - $9,832.26 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

$1,118.43 ea.
$1,118.43 for 1

4" Copper Round Bar 145-H02 - 
Part #: 15469

4" Copper Round Bar 145-H02 -
Part #: 15469

Click for more details

copper-round-bar-145-h02-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,014.21 ea.
  • 24″ (2 ft.) - $1,916.96 ea.
  • 36″ (3 ft.) - $2,830.86 ea.
  • 48″ (4 ft.) - $3,670.47 ea.
  • 72″ (6 ft.) - $5,059.89 ea.
  • 96″ (8 ft.) - $6,479.05 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

$1,014.21 ea.
$1,014.21 for 1

4" Aluminum Round Bar 2024-T351-Cold Finish - 
Part #: 12645

4" Aluminum Round Bar 2024-T351-Cold Finish -
Part #: 12645

Click for more details

aluminum-round-bar-2024-t351-cold-finish-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $295.94 ea.
  • 24″ (2 ft.) - $559.34 ea.
  • 36″ (3 ft.) - $826.03 ea.
  • 48″ (4 ft.) - $1,071.02 ea.
  • 72″ (6 ft.) - $1,476.44 ea.
  • 96″ (8 ft.) - $1,890.55 ea.
  • 144″ (12 ft.) - $2,601.66 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

$295.94 ea.
$295.94 for 1

4" Aluminum Round Bar 6061-T6511-Extruded - 
Part #: 1105

4" Aluminum Round Bar 6061-T6511-Extruded -
Part #: 1105

Click for more details

aluminum-round-bar-6061-t6511-extruded-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $138.07 ea.
  • 24″ (2 ft.) - $261.41 ea.
  • 36″ (3 ft.) - $386.22 ea.
  • 48″ (4 ft.) - $501.20 ea.
  • 72″ (6 ft.) - $692.80 ea.
  • 96″ (8 ft.) - $888.37 ea.
  • 144″ (12 ft.) - $1,226.45 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

$138.07 ea.
$138.07 for 1

4" Aluminum Round Bar 7075-T651-Cold Finish - 
Part #: 7165

4" Aluminum Round Bar 7075-T651-Cold Finish -
Part #: 7165

Click for more details

aluminum-round-bar-7075-t651-cold-finish-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $289.59 ea.
  • 24″ (2 ft.) - $547.37 ea.
  • 36″ (3 ft.) - $808.32 ea.
  • 48″ (4 ft.) - $1,048.06 ea.
  • 72″ (6 ft.) - $1,444.80 ea.
  • 96″ (8 ft.) - $1,850.01 ea.
  • 144″ (12 ft.) - $2,545.89 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

$289.59 ea.
$289.59 for 1

4" Maraging Steel Round Bar 350-Annealed - 
Part #: 22530

4" Maraging Steel Round Bar 350-Annealed -
Part #: 22530

Click for more details

maraging-steel-round-bar-annealed-350-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 6″ (6 in.) - $3,378.46 ea.
  • 12″ (1 ft.) - $6,386.31 ea.
  • 18″ (18 in.) - $9,099.60 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

$3,378.46 ea.
$3,378.46 for 1

4" Maraging Steel Round Bar 300-Annealed - 
Part #: 23146

4" Maraging Steel Round Bar 300-Annealed-
Part #: 23146

Click for more details

maraging-steel-round-bar-300-1superZoom

Dimensions

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

4" Cast Iron Round Bar 65-45-12 Dura-Bar - 
Part #: 23950

4" Cast Iron Round Bar 65-45-12 Dura-Bar-
Part #: 23950

Click for more details

cast-iron-dura-bar-roundsuperZoom

Dimensions

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

4" Cast Iron Round Bar G2 Dura-Bar - 
Part #: 24017

4" Cast Iron Round Bar G2 Dura-Bar-
Part #: 24017

Click for more details

cast-iron-dura-bar-roundsuperZoom

Dimensions

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

4" Cast Iron Round Bar 80-55-06 Dura-Bar - 
Part #: 24071

4" Cast Iron Round Bar 80-55-06 Dura-Bar-
Part #: 24071

Click for more details

cast-iron-dura-bar-roundsuperZoom

Dimensions

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

4mm Brass Round Bar 360-H02 Extruded 36" Length [+/- 2"] - 
Part #: 24568

4mm Brass Round Bar 360-H02 Extruded 36" Length [+/- 2"] -
Part #: 24568

Click for more details

brass-round-bar-360-h02-1superZoom

Dimensions

  • Diameter: 4mm
See all available dimensions for this product

Pack of 6

QTY

$83.26 ea.
$83.26

Can't find what you're looking for?

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