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

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

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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.

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

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

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Dimensions

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

Pack of 6

QTY

$83.26 ea.
$83.26

4mm Brass Round Bar 360-H02 Extruded 72" Length [+/- 2"] - 
Part #: 24569

4mm Brass Round Bar 360-H02 Extruded 72" Length [+/- 2"] -
Part #: 24569

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

Dimensions

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

Pack of 3

QTY

$83.36 ea.
$83.36

4mm Carbon Steel Round Bar 1045 TGP Metric 36" Length [+/- 2"] - 
Part #: 24626

4mm Carbon Steel Round Bar 1045 TGP Metric 36" Length [+/- 2"] -
Part #: 24626

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Dimensions

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

Pack of 6

QTY

$116.06 ea.
$116.06

4mm Carbon Steel Round Bar 1045 TGP Metric 72" Length [+/- 2"] - 
Part #: 24627

4mm Carbon Steel Round Bar 1045 TGP Metric 72" Length [+/- 2"] -
Part #: 24627

Click for more details

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Dimensions

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

Pack of 3

QTY

$98.38 ea.
$98.38

4mm Copper Round Bar 110 Metric 36" Length [+/- 2"] - 
Part #: 24642

4mm Copper Round Bar 110 Metric 36" Length [+/- 2"] -
Part #: 24642

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Dimensions

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

Pack of 6

QTY

$94.63 ea.
$94.63

4mm Copper Round Bar 110 Metric 72" Length [+/- 2"] - 
Part #: 24643

4mm Copper Round Bar 110 Metric 72" Length [+/- 2"] -
Part #: 24643

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Dimensions

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

Pack of 3

QTY

$94.75 ea.
$94.75

4" Stainless Round Bar 303-Annealed Rough Turned - 
Part #: 24693

4" Stainless Round Bar 303-Annealed Rough Turned -
Part #: 24693

Click for more details

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Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $357.86 ea.
  • 24″ (2 ft.) - $676.42 ea.
  • 36″ (3 ft.) - $998.89 ea.
  • 48″ (4 ft.) - $1,295.13 ea.
  • 72″ (6 ft.) - $1,785.41 ea.
  • 96″ (8 ft.) - $2,286.14 ea.
  • 144″ (12 ft.) - $3,146.07 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

$357.86 ea.
$357.86 for 1

4" Stainless Round Bar 316/316L Annealed Rough Turned - 
Part #: 24722

4" Stainless Round Bar 316/316L Annealed Rough Turned -
Part #: 24722

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stainless-round-bar-316-cold-finish-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $547.11 ea.
  • 24″ (2 ft.) - $1,034.07 ea.
  • 36″ (3 ft.) - $1,527.08 ea.
  • 144″ (12 ft.) - $4,809.65 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

$547.11 ea.
$547.11 for 1

4" Aluminum Round Bar 7075-T7351-Cold Finish - 
Part #: 24889

4" Aluminum Round Bar 7075-T7351-Cold Finish -
Part #: 24889

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

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $266.09 ea.
  • 24″ (2 ft.) - $502.95 ea.
  • 36″ (3 ft.) - $742.75 ea.
  • 48″ (4 ft.) - $963.03 ea.
  • 72″ (6 ft.) - $1,327.56 ea.
  • 96″ (8 ft.) - $1,699.92 ea.
  • 144″ (12 ft.) - $2,339.32 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

$266.09 ea.
$266.09 for 1

4" Titanium Round Bar Grade 23 6AL-4V ELI - 
Part #: 19765

4" Titanium Round Bar Grade 23 6AL-4V ELI -
Part #: 19765

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Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $3,299.48 ea.
  • 24″ (2 ft.) - $6,236.38 ea.
  • 36″ (3 ft.) - $9,209.51 ea.
  • 48″ (4 ft.) - $11,940.94 ea.
  • 72″ (6 ft.) - $16,461.11 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.
Create Custom Cut

QTY

$3,299.48 ea.
$3,299.48 for 1

4" Titanium Round Bar Grade 2 - 
Part #: 21906

4" Titanium Round Bar Grade 2-
Part #: 21906

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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" Nickel Round Bar K500 - 
Part #: 25275

4" Nickel Round Bar K500-
Part #: 25275

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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 15-5 Hot Rolled Rough Turned - 
Part #: 27618

4" Stainless Round Bar 15-5 Hot Rolled Rough Turned -
Part #: 27618

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Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $941.01 ea.
  • 24″ (2 ft.) - $1,778.61 ea.
  • 36″ (3 ft.) - $2,626.54 ea.
  • 48″ (4 ft.) - $3,405.54 ea.
  • 72″ (6 ft.) - $4,694.68 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.

QTY

$941.01 ea.
$941.01 for 1

4mm Dia. Brass Round Rod 260 - 1 Meter Long (5 Pieces) - 
Part #: mp-00000690

4mm Dia. Brass Round Rod 260 - 1 Meter Long (5 Pieces) -
Part #: mp-00000690

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Diameter: 4mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 5

QTY

$42.99 ea.
$42.99

4mm Dia. Brass Round Rod 260 - 300mm Long (3 Pieces) - 
Part #: mp-00000701

4mm Dia. Brass Round Rod 260 - 300mm Long (3 Pieces) -
Part #: mp-00000701

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Diameter: 4mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 3

QTY

$10.99 ea.
$10.99

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-T651-Cold Finish - 
Part #: 18055

4" Aluminum Round Bar 6061-T651-Cold Finish -
Part #: 18055

Click for more details

aluminum-round-bar-6061-t651-cold-finish-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $256.67 ea.
  • 24″ (2 ft.) - $485.97 ea.
  • 36″ (3 ft.) - $717.97 ea.
  • 48″ (4 ft.) - $931.72 ea.
  • 72″ (6 ft.) - $1,287.98 ea.
  • 96″ (8 ft.) - $1,651.51 ea.
  • 144″ (12 ft.) - $2,279.96 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

$256.67 ea.
$256.67 for 1

4" Carbon Steel Round Bar 1018 Cold Finish - 
Part #: 13570

4" Carbon Steel Round Bar 1018 Cold Finish -
Part #: 13570

Click for more details

mild-steel-round-bar-1018-cold-finish-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $157.42 ea.
  • 24″ (2 ft.) - $297.53 ea.
  • 36″ (3 ft.) - $439.38 ea.
  • 48″ (4 ft.) - $569.67 ea.
  • 72″ (6 ft.) - $785.32 ea.
  • 96″ (8 ft.) - $1,005.58 ea.
  • 144″ (12 ft.) - $1,383.82 ea.
  • 240″ (20 ft.) - $2,306.37 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

$157.42 ea.
$157.42 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" Bronze Round Bar C89835-Bismuth Tin Bronze - 
Part #: 25624

4" Bronze Round Bar C89835-Bismuth Tin Bronze -
Part #: 25624

Click for more details

bronze-round-bar-954-3superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 13″ (13 in.) - $904.51 ea.
  • 26″ (26 in.) - $1,856.65 ea.
  • 39″ (39 in.) - $2,570.74 ea.
  • 52″ (52 in.) - $3,332.30 ea.
  • 65″ (65 in.) - $4,094.00 ea.
  • 78″ (78 in.) - $4,770.02 ea.
  • 105″ (105 in.) - $6,152.10 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

$904.51 ea.
$904.51 for 1

4" Nickel Round Bar 200 - 
Part #: 26086

4" Nickel Round Bar 200-
Part #: 26086

Click for more details

nickel-round-bar-200-1superZoom

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" Nickel Round Bar 400 - 
Part #: 26375

4" Nickel Round Bar 400-
Part #: 26375

Click for more details

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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.

5 1/4" Stainless Round Bar 303-Annealed Rough Turned - 
Part #: 28019

5 1/4" Stainless Round Bar 303-Annealed Rough Turned -
Part #: 28019

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 4"
See all available dimensions for this product
  • 12″ (1 ft.) - $860.55 ea.
  • 24″ (2 ft.) - $1,626.54 ea.
  • 36″ (3 ft.) - $2,401.98 ea.
  • 48″ (4 ft.) - $3,114.37 ea.
  • 72″ (6 ft.) - $4,293.30 ea.
  • 96″ (8 ft.) - $5,497.44 ea.
  • 144″ (12 ft.) - $7,565.28 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

$860.55 ea.
$860.55 for 1

4" Tool Steel Round Bar A2 - 
Part #: mp-00002389

4" Tool Steel Round Bar A2 -
Part #: mp-00002389

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Diameter: 4"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $295.36 ea.
  • 24″ (2 ft.) - $590.73 ea.
  • 72″ (6 ft.) - $1,772.17 ea.
  • 144″ (12 ft.) - $3,544.33 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.
Create Custom Cut

QTY

$295.36 ea.
$295.36 for 1

Can't find what you're looking for?

Contact us for a custom quote