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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" Stainless Round Bar 17-4 H1150 - 
Part #: mp-00002495

4" Stainless Round Bar 17-4 H1150 -
Part #: mp-00002495

Click for more details

Sold & shipped by AW Metals

Dimensions

  • Diameter: 4"
  • Ships In: 2 Business Days
See all available dimensions for this product
  • 3″ (3 in.) - $110.00 ea.
  • 6″ (6 in.) - $175.00 ea.
  • 12″ (1 ft.) - $295.00 ea.
  • 24″ (2 ft.) - $595.00 ea.
  • 36″ (3 ft.) - $800.00 ea.
  • 48″ (4 ft.) - $1,095.00 ea.
  • 72″ (6 ft.) - $1,500.00 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

$110.00 ea.
$110.00 for 1

4 1/8" Cast Iron Round Bar 65-45-12 Dura-Bar - 
Part #: 23951

4 1/8" Cast Iron Round Bar 65-45-12 Dura-Bar-
Part #: 23951

Click for more details

cast-iron-dura-bar-roundsuperZoom

Dimensions

  • Diameter: 4.125"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4.125" OD Chromium Copper Round Bar 182 Class 2 - 
Part #: mp-00005107

4.125" OD Chromium Copper Round Bar 182 Class 2 -
Part #: mp-00005107

Click for more details

Sold & shipped by Southern Copper

Dimensions

  • Diameter: 4.125"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $907.86 ea.
  • 24″ (2 ft.) - $2,013.13 ea.
  • 36″ (3 ft.) - $3,019.69 ea.
  • 48″ (4 ft.) - $4,026.25 ea.
  • 72″ (6 ft.) - $6,039.38 ea.
  • 96″ (8 ft.) - $8,052.50 ea.
  • 144″ (12 ft.) - $12,078.75 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

$907.86 ea.
$907.86 for 1
quantity discountBuy More & Save up to 10% !
Qty
Price ea.
Savings
2-4
$880.62
3%
5-9
$862.47
4%
10+
$817.07
10%
More
Less

4.125" Chrome Zirconium Copper Round Bar 18150 - 
Part #: mp-00041229

4.125" Chrome Zirconium Copper Round Bar 18150 -
Part #: mp-00041229

Click for more details

Sold & shipped by Southern Copper

Dimensions

  • Diameter: 4.125"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $1,135.61 ea.
  • 24″ (2 ft.) - $2,271.22 ea.
  • 36″ (3 ft.) - $3,406.83 ea.
  • 48″ (4 ft.) - $4,542.44 ea.
  • 60″ (5 ft.) - $5,678.05 ea.
  • 72″ (6 ft.) - $6,813.66 ea.
  • 84″ (7 ft.) - $7,949.26 ea.
  • 96″ (8 ft.) - $9,084.87 ea.
  • 108″ (9 ft.) - $10,220.48 ea.
  • 120″ (10 ft.) - $11,356.09 ea.
  • 132″ (11 ft.) - $12,491.70 ea.
  • 144″ (12 ft.) - $13,627.31 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

$1,135.61 ea.
$1,135.61 for 1

4 1/4" Nickel Aluminum Bronze Round Bar 630 - 
Part #: 18302

4 1/4" Nickel Aluminum Bronze Round Bar 630 -
Part #: 18302

Click for more details

bronze-round-bar-630-1superZoom

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $1,536.50 ea.
  • 24″ (2 ft.) - $2,904.18 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

$1,536.50 ea.
$1,536.50 for 1

4 1/4" Aluminum Bronze Round Bar 954 Cast Oversized - 
Part #: 14399

4 1/4" Aluminum Bronze Round Bar 954 Cast Oversized -
Part #: 14399

Click for more details

bronze-round-bar-954-1superZoom

Dimensions

  • Diameter: Finishes To 4.25"
  • Ships In: 2-3 Business Days From Ohio
See all available dimensions for this product
  • 12″ (1 ft.) - $791.56 ea.
  • 24″ (2 ft.) - $1,624.76 ea.
  • 36″ (3 ft.) - $2,249.68 ea.
  • 48″ (4 ft.) - $2,916.24 ea.
  • 72″ (6 ft.) - $4,174.38 ea.
  • 144″ (12 ft.) - $7,898.83 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

$791.56 ea.
$791.56 for 1

4 1/4" Stainless Round Bar 304/304L-Annealed Hot Rolled - 
Part #: 124

4 1/4" Stainless Round Bar 304/304L-Annealed Hot Rolled -
Part #: 124

Click for more details

stainless-round-bar-304-1superZoom

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $466.53 ea.
  • 24″ (2 ft.) - $881.77 ea.
  • 36″ (3 ft.) - $1,302.16 ea.
  • 48″ (4 ft.) - $1,688.37 ea.
  • 144″ (12 ft.) - $4,101.28 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

$466.53 ea.
$466.53 for 1

4 1/4" Stainless Round Bar 303-Annealed Hot Rolled Rough Turned - 
Part #: 2041

4 1/4" Stainless Round Bar 303-Annealed Hot Rolled Rough Turned -
Part #: 2041

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $394.68 ea.
  • 24″ (2 ft.) - $745.96 ea.
  • 36″ (3 ft.) - $1,101.60 ea.
  • 48″ (4 ft.) - $1,428.33 ea.
  • 144″ (12 ft.) - $3,469.60 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.
Create Custom Cut

QTY

$394.68 ea.
$394.68 for 1

4 1/4" Stainless Round Bar 17-4 PH Cond. A Rough Turned - 
Part #: 7307

4 1/4" Stainless Round Bar 17-4 PH Cond. A Rough Turned -
Part #: 7307

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $587.14 ea.
  • 24″ (2 ft.) - $1,109.78 ea.
  • 36″ (3 ft.) - $1,638.85 ea.
  • 48″ (4 ft.) - $2,124.90 ea.
  • 72″ (6 ft.) - $2,929.28 ea.
  • 96″ (8 ft.) - $3,750.85 ea.
  • 144″ (12 ft.) - $5,161.72 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

$587.14 ea.
$587.14 for 1

4 1/4" Alloy Steel Round Bar 8620-Hot Rolled - 
Part #: 15025

4 1/4" Alloy Steel Round Bar 8620-Hot Rolled -
Part #: 15025

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $237.24 ea.
  • 24″ (2 ft.) - $448.43 ea.
  • 144″ (12 ft.) - $2,085.70 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

$237.24 ea.
$237.24 for 1

4 1/4" Bearing Bronze Round Bar 932 (SAE 660) Cast Oversized - 
Part #: 10545

4 1/4" Bearing Bronze Round Bar 932 (SAE 660) Cast Oversized -
Part #: 10545

Click for more details

bronze-round-bar-932-1superZoom

Dimensions

  • Diameter: 4.25"
  • Ships In: 2-3 Business Days From Ohio
See all available dimensions for this product
  • 13″ (13 in.) - $813.20 ea.
  • 26″ (26 in.) - $1,669.20 ea.
  • 39″ (39 in.) - $2,311.18 ea.
  • 52″ (52 in.) - $2,995.98 ea.
  • 65″ (65 in.) - $3,680.78 ea.
  • 78″ (78 in.) - $4,288.54 ea.
  • 91″ (91 in.) - $4,883.45 ea.
  • 105″ (105 in.) - $5,531.04 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

$813.20 ea.
$813.20 for 1

4 1/4" Aluminum Round Bar 2024-T351-Cold Finish - 
Part #: 21444

4 1/4" Aluminum Round Bar 2024-T351-Cold Finish -
Part #: 21444

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $264.21 ea.
  • 24″ (2 ft.) - $499.38 ea.
  • 36″ (3 ft.) - $737.46 ea.
  • 48″ (4 ft.) - $956.19 ea.
  • 72″ (6 ft.) - $1,318.14 ea.
  • 96″ (8 ft.) - $1,687.84 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

$264.21 ea.
$264.21 for 1

4 1/4" Aluminum Round Bar 6061-T6511-Extruded - 
Part #: 17824

4 1/4" Aluminum Round Bar 6061-T6511-Extruded -
Part #: 17824

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $170.99 ea.
  • 24″ (2 ft.) - $323.17 ea.
  • 36″ (3 ft.) - $477.26 ea.
  • 48″ (4 ft.) - $618.83 ea.
  • 72″ (6 ft.) - $853.07 ea.
  • 96″ (8 ft.) - $1,092.31 ea.
  • 144″ (12 ft.) - $1,503.20 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

$170.99 ea.
$170.99 for 1

4 1/4" Brass Round Bar 360-H02 Extruded - 
Part #: 21190

4 1/4" Brass Round Bar 360-H02 Extruded -
Part #: 21190

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $848.57 ea.
  • 24″ (2 ft.) - $1,603.88 ea.
  • 36″ (3 ft.) - $2,368.50 ea.
  • 48″ (4 ft.) - $3,070.98 ea.
  • 72″ (6 ft.) - $4,233.48 ea.
  • 96″ (8 ft.) - $5,420.83 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

$848.57 ea.
$848.57 for 1

4 1/4" Cast Iron Round Bar 65-45-12 Dura-Bar - 
Part #: 23952

4 1/4" Cast Iron Round Bar 65-45-12 Dura-Bar-
Part #: 23952

Click for more details

cast-iron-dura-bar-roundsuperZoom

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4 1/4" Cast Iron Round Bar G2 Dura-Bar - 
Part #: 24018

4 1/4" Cast Iron Round Bar G2 Dura-Bar-
Part #: 24018

Click for more details

cast-iron-dura-bar-roundsuperZoom

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4 1/4" Cast Iron Round Bar 80-55-06 Dura-Bar - 
Part #: 24072

4 1/4" Cast Iron Round Bar 80-55-06 Dura-Bar-
Part #: 24072

Click for more details

cast-iron-dura-bar-roundsuperZoom

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4 1/4" Alloy Steel Round Bar 300m VAR - 
Part #: 27653

4 1/4" Alloy Steel Round Bar 300m VAR-
Part #: 27653

Click for more details

alloy-steel-round-bar-4330-var-1superZoom

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4 1/4" Aluminum Round Bar 7075-T651-Cold Finish - 
Part #: 26436

4 1/4" Aluminum Round Bar 7075-T651-Cold Finish -
Part #: 26436

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $344.77 ea.
  • 24″ (2 ft.) - $651.65 ea.
  • 36″ (3 ft.) - $962.31 ea.
  • 48″ (4 ft.) - $1,247.72 ea.
  • 72″ (6 ft.) - $1,720.03 ea.
  • 96″ (8 ft.) - $2,202.45 ea.
  • 144″ (12 ft.) - $3,030.92 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

$344.77 ea.
$344.77 for 1

4 1/4" Carbon Steel Round Bar 1141 Hot Rolled - 
Part #: 28054

4 1/4" Carbon Steel Round Bar 1141 Hot Rolled-
Part #: 28054

Click for more details

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

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002459

4 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002459

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Diameter: 4.25"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $299.72 ea.
  • 24″ (2 ft.) - $599.44 ea.
  • 72″ (6 ft.) - $1,798.32 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.

QTY

$299.72 ea.
$299.72 for 1

4 1/4" Stainless Round Bar 17-4 H1150 - 
Part #: mp-00002675

4 1/4" Stainless Round Bar 17-4 H1150 -
Part #: mp-00002675

Click for more details

Sold & shipped by AW Metals

Dimensions

  • Diameter: 4.25"
  • Ships In: 2 Business Days
See all available dimensions for this product
  • 6″ (6 in.) - $260.00 ea.
  • 12″ (1 ft.) - $500.00 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

$260.00 ea.
$260.00 for 1

4 1/4" Carbon Steel Round Bar 1018 Hot Rolled - 
Part #: mp-00030416

4 1/4" Carbon Steel Round Bar 1018 Hot Rolled -
Part #: mp-00030416

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $296.61 ea.
  • 24″ (2 ft.) - $593.22 ea.
  • 36″ (3 ft.) - $889.83 ea.
  • 48″ (4 ft.) - $1,186.44 ea.
  • 60″ (5 ft.) - $1,483.05 ea.
  • 72″ (6 ft.) - $1,779.66 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

$296.61 ea.
$296.61 for 1
quantity discountBuy More & Save up to 9% !
Qty
Price ea.
Savings
2-4
$287.71
3%
5-9
$281.78
4%
10+
$266.95
9%
More
Less

4 1/4" Aluminum Round Bar 6061-T6511 144" Length - 5pc. Min - 
Part #: 28519

4 1/4" Aluminum Round Bar 6061-T6511 144" Length - 5pc. Min-
Part #: 28519

Click for more details

Dimensions

  • Diameter: 4.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4 1/4" Tool Steel Round Bar A2 - 
Part #: mp-00002482

4 1/4" Tool Steel Round Bar A2 -
Part #: mp-00002482

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Diameter: 4.25"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $333.42 ea.
  • 24″ (2 ft.) - $666.86 ea.
  • 72″ (6 ft.) - $2,000.56 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

$333.42 ea.
$333.42 for 1

Can't find what you're looking for?

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