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Round Tube

-2165 Products

We carry Round Metal Tubing in Alloy Steel, Aluminum, Brass, Carbon Fiber, Carbon Steel, Copper, Nickel, Stainless Steel, and Titanium. What's the difference between pipes and round tubes? Pipes are passageways, while tubes are structural – meaning round tube sizes will be true to the listed dimensions while pipe will be a nominal dimension. The round metal tubes for sale in our warehouses also will not couple with pipe fittings.

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4" OD x 0.083" Wall x 3.83" ID Stainless Round Tube 316 Welded - 
Part #: 23485

4" OD x 0.083" Wall x 3.83" ID Stainless Round Tube 316 Welded -
Part #: 23485

Click for more details

stainless-round-tube-316-welded-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.083"
  • Inner Diameter: 3.83"
See all available dimensions for this product
  • 12″ (1 ft.) - $87.89 ea.
  • 24″ (2 ft.) - $171.00 ea.
  • 36″ (3 ft.) - $233.39 ea.
  • 48″ (4 ft.) - $291.02 ea.
  • 72″ (6 ft.) - $411.03 ea.
  • 96″ (8 ft.) - $511.93 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

$87.89 ea.
$87.89 for 1

4" OD x 0.125" Wall x 3.75" ID Brass Round Tube Drawn - 
Part #: 22484

4" OD x 0.125" Wall x 3.75" ID Brass Round Tube Drawn -
Part #: 22484

Click for more details

brass-round-tube-h58-seamless-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.125"
  • Inner Diameter: 3.75"
See all available dimensions for this product
  • 12″ (1 ft.) - $258.22 ea.
  • 24″ (2 ft.) - $502.39 ea.
  • 36″ (3 ft.) - $685.69 ea.
  • 48″ (4 ft.) - $854.97 ea.
  • 72″ (6 ft.) - $1,207.59 ea.
  • 96″ (8 ft.) - $1,504.00 ea.
  • 144″ (12 ft.) - $1,872.23 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.
Create Custom Cut

QTY

$258.22 ea.
$258.22 for 1

4" OD x 0.083" Wall x 3.834" ID Carbon Steel Round Tube A513-Type 5 DOM - 
Part #: 12690

4" OD x 0.083" Wall x 3.834" ID Carbon Steel Round Tube A513-Type 5 DOM -
Part #: 12690

Click for more details

mild-steel-round-tube-a513-type-5-dom-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.083"
  • Inner Diameter: 3.834"
See all available dimensions for this product
  • 12″ (1 ft.) - $36.70 ea.
  • 24″ (2 ft.) - $71.47 ea.
  • 36″ (3 ft.) - $97.71 ea.
  • 48″ (4 ft.) - $121.99 ea.
  • 72″ (6 ft.) - $172.54 ea.
  • 96″ (8 ft.) - $215.25 ea.
  • 240″ (20 ft.) - $448.79 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

$36.70 ea.
$36.70 for 1

4" OD x 0.065" Wall x 3.87" ID Aluminum Round Tube 6061-T6-Drawn - 
Part #: 4744

4" OD x 0.065" Wall x 3.87" ID Aluminum Round Tube 6061-T6-Drawn -
Part #: 4744

Click for more details

aluminum-round-tube-6061-t6-drawn-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.065"
  • Inner Diameter: 3.87"
See all available dimensions for this product
  • 12″ (1 ft.) - $77.54 ea.
  • 24″ (2 ft.) - $150.94 ea.
  • 36″ (3 ft.) - $206.40 ea.
  • 48″ (4 ft.) - $257.71 ea.
  • 72″ (6 ft.) - $364.45 ea.
  • 96″ (8 ft.) - $454.65 ea.
  • 144″ (12 ft.) - $568.78 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.
Create Custom Cut

QTY

$77.54 ea.
$77.54 for 1

4" OD x 0.25" Wall x 3.5" ID Aluminum Round Tube 6061-T6-Extruded - 
Part #: 10460

4" OD x 0.25" Wall x 3.5" ID Aluminum Round Tube 6061-T6-Extruded -
Part #: 10460

Click for more details

aluminum-round-tube-6061-t6-extruded-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.25"
  • Inner Diameter: 3.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $77.25 ea.
  • 24″ (2 ft.) - $150.38 ea.
  • 36″ (3 ft.) - $205.58 ea.
  • 48″ (4 ft.) - $256.71 ea.
  • 72″ (6 ft.) - $363.07 ea.
  • 96″ (8 ft.) - $452.93 ea.
  • 288″ (24 ft.) - $1,133.21 ea. LTL freight starting at $245 on all lengths greater than 96"
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

$77.25 ea.
$77.25 for 1

4" OD x 0.5" Wall x 3" ID Aluminum Round Tube 6061-T6-Extruded - 
Part #: 19929

4" OD x 0.5" Wall x 3" ID Aluminum Round Tube 6061-T6-Extruded -
Part #: 19929

Click for more details

aluminum-round-tube-6061-t6-extruded-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.5"
  • Inner Diameter: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $146.42 ea.
  • 24″ (2 ft.) - $284.98 ea.
  • 36″ (3 ft.) - $389.69 ea.
  • 48″ (4 ft.) - $486.55 ea.
  • 72″ (6 ft.) - $688.12 ea.
  • 96″ (8 ft.) - $858.41 ea.
  • 144″ (12 ft.) - $1,073.89 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

$146.42 ea.
$146.42 for 1

4" OD x 0.25" Wall x 3.5" ID Stainless Round Tube 304 Seamless - 
Part #: 23131

4" OD x 0.25" Wall x 3.5" ID Stainless Round Tube 304 Seamless -
Part #: 23131

Click for more details

stainless-round-tube-304-seamless-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.25"
  • Inner Diameter: 3.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $154.29 ea.
  • 24″ (2 ft.) - $291.63 ea.
  • 36″ (3 ft.) - $430.68 ea.
  • 48″ (4 ft.) - $558.41 ea.
  • 72″ (6 ft.) - $769.78 ea.
  • 96″ (8 ft.) - $985.68 ea.
  • 240″ (20 ft.) - $2,260.75 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

$154.29 ea.
$154.29 for 1

4mm OD x 0.45mm Wall Aluminum Round Tube 3003-H14 - 300mm Long (3 Pieces) - 
Part #: mp-00000729

4mm OD x 0.45mm Wall Aluminum Round Tube 3003-H14 - 300mm Long (3 Pieces) -
Part #: mp-00000729

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.45mm
  • Inner Diameter: 3.1mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 3

QTY

$6.99 ea.
$6.99

4mm OD x 0.45mm Wall Aluminum Round Tube 3003-H14 - 1 Meter Long (5 Pieces) - 
Part #: mp-00000740

4mm OD x 0.45mm Wall Aluminum Round Tube 3003-H14 - 1 Meter Long (5 Pieces) -
Part #: mp-00000740

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.45mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 5

QTY

$19.99 ea.
$19.99

4mm OD x 0.36mm Wall Copper Round Tube 122 - 300mm Long (3 Pieces) - 
Part #: mp-00000793

4mm OD x 0.36mm Wall Copper Round Tube 122 - 300mm Long (3 Pieces) -
Part #: mp-00000793

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.36mm
  • Inner Diameter: 3.28mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 3

QTY

$9.99 ea.
$9.99

4mm OD x 0.36mm Wall Copper Round Tube 122 - 1 Meter Long (5 Pieces) - 
Part #: mp-00000807

4mm OD x 0.36mm Wall Copper Round Tube 122 - 1 Meter Long (5 Pieces) -
Part #: mp-00000807

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.36mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 5

QTY

$27.99 ea.
$27.99

4mm OD x 0.45mm Wall Brass Round Tube 260/272 - 1 Meter Long (5 Pieces) - 
Part #: mp-00000826

4mm OD x 0.45mm Wall Brass Round Tube 260/272 - 1 Meter Long (5 Pieces) -
Part #: mp-00000826

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.45mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 5

QTY

$32.99 ea.
$32.99

4mm OD x 0.45mm Wall Brass Round Tube 260/272 - 300mm Long (3 Pieces) - 
Part #: mp-00000830

4mm OD x 0.45mm Wall Brass Round Tube 260/272 - 300mm Long (3 Pieces) -
Part #: mp-00000830

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.45mm
  • Inner Diameter: 3.1mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 3

QTY

$9.99 ea.
$9.99

4mm OD x 0.225mm Wall Brass Round Tube 260/272 - 1 Meter Long (4 Pieces) - 
Part #: mp-00000831

4mm OD x 0.225mm Wall Brass Round Tube 260/272 - 1 Meter Long (4 Pieces) -
Part #: mp-00000831

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.225mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 4

QTY

$23.99 ea.
$23.99

4mm OD x 0.225mm Wall Brass Round Tube 260/272 - 300mm Long (3 Pieces) - 
Part #: mp-00000882

4mm OD x 0.225mm Wall Brass Round Tube 260/272 - 300mm Long (3 Pieces) -
Part #: mp-00000882

Click for more details

Sold & shipped by K&S Precision Metals

Dimensions

  • Outer Diameter: 4mm
  • Wall: 0.225mm
  • Inner Diameter: 3.55mm
  • Ships In: 1 Business Day
See all available dimensions for this product

Pack of 3

QTY

$8.99 ea.
$8.99

4mm OD x 1mm Wall Stainless Round Tube 316/316L Seamless 60" [+/- 2"] Pack of 4 - 
Part #: 25985

4mm OD x 1mm Wall Stainless Round Tube 316/316L Seamless 60" [+/- 2"] Pack of 4 -
Part #: 25985

Click for more details

stainless-round-tube-316-seamless-1superZoom

Dimensions

  • Outer Diameter: 4mm
  • Wall: 1mm
  • Inner Diameter: 2mm
See all available dimensions for this product

Pack of 4

QTY

$164.43 ea.
$164.43

4" OD x 0.375" Wall x 3.25" ID Stainless Steel Round Tube 304/304L - 
Part #: 26058

4" OD x 0.375" Wall x 3.25" ID Stainless Steel Round Tube 304/304L-
Part #: 26058

Click for more details

stainless-round-tube-304-seamless-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.375"
  • Inner 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.

4" OD x 0.065" Wall x 3.87" ID Stainless Round Tube 304 Seamless Annealed & Pickled - 
Part #: 27981

4" OD x 0.065" Wall x 3.87" ID Stainless Round Tube 304 Seamless Annealed & Pickled-
Part #: 27981

Click for more details

stainless-round-tube-304-seamless-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.065"
  • Inner Diameter: 3.87"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4mm X 1mm Copper Round Tube 122 - 2M Length - 
Part #: 26977

4mm X 1mm Copper Round Tube 122 - 2M Length -
Part #: 26977

Click for more details

copper-round-tube-122-1superZoom

Dimensions

  • Outer Diameter: 4mm
  • Wall: 1mm
  • Inner Diameter: 2mm
See all available dimensions for this product

Pack of 2

QTY

$75.91 ea.
$75.91

4mm x 1mm Copper Round Tube 122 - 1M Length - 
Part #: 26975

4mm x 1mm Copper Round Tube 122 - 1M Length -
Part #: 26975

Click for more details

copper-round-tube-122-1superZoom

Dimensions

  • Outer Diameter: 4mm
  • Wall: 1mm
  • Inner Diameter: 2mm
See all available dimensions for this product

Pack of 5

QTY

$94.86 ea.
$94.86

4mm x 1mm Copper Round Tube 122 - 0.5M Length - 
Part #: 26974

4mm x 1mm Copper Round Tube 122 - 0.5M Length -
Part #: 26974

Click for more details

copper-round-tube-122-1superZoom

Dimensions

  • Outer Diameter: 4mm
  • Wall: 1mm
  • Inner Diameter: 2mm
See all available dimensions for this product

Pack of 10

QTY

$94.86 ea.
$94.86

4mm X 1mm Copper Coil Tube 122 Annealed - 10M Length - 
Part #: 26976

4mm X 1mm Copper Coil Tube 122 Annealed - 10M Length -
Part #: 26976

Click for more details

copper-round-tube-122-1superZoom

Dimensions

  • Outer Diameter: 4mm
  • Wall: 1mm
  • Inner Diameter: 2mm
See all available dimensions for this product

Pack of 1

QTY

$954.32 ea.
$954.32

4" OD x 0.120" Wall x 3.76" ID Stainless Round Tube 304 Welded - 
Part #: 27013

4" OD x 0.120" Wall x 3.76" ID Stainless Round Tube 304 Welded -
Part #: 27013

Click for more details

stainless-round-tube-304-welded-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.12"
  • Inner Diameter: 3.76"
See all available dimensions for this product
  • 12″ (1 ft.) - $101.46 ea.
  • 24″ (2 ft.) - $197.42 ea.
  • 36″ (3 ft.) - $269.45 ea.
  • 48″ (4 ft.) - $335.96 ea.
  • 72″ (6 ft.) - $474.53 ea.
  • 96″ (8 ft.) - $591.03 ea.
  • 144″ (12 ft.) - $735.71 ea.
  • 240″ (20 ft.) - $1,471.41 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

$101.46 ea.
$101.46 for 1

4" OD x 0.125" Wall x 3.75" ID Aluminum Round Tube 6061-T6-Extruded - 
Part #: 4741

4" OD x 0.125" Wall x 3.75" ID Aluminum Round Tube 6061-T6-Extruded -
Part #: 4741

Click for more details

aluminum-round-tube-6061-t6-extruded-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.125"
  • Inner Diameter: 3.75"
See all available dimensions for this product
  • 12″ (1 ft.) - $21.05 ea.
  • 24″ (2 ft.) - $40.97 ea.
  • 36″ (3 ft.) - $55.99 ea.
  • 48″ (4 ft.) - $69.92 ea.
  • 72″ (6 ft.) - $98.91 ea.
  • 96″ (8 ft.) - $123.37 ea.
  • 288″ (24 ft.) - $308.68 ea. LTL freight starting at $245 on all lengths greater than 96"
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

$21.05 ea.
$21.05 for 1

4" OD x 0.1875" Wall x 3.625" ID Aluminum Round Tube 6061-T6-Extruded - 
Part #: 26241

4" OD x 0.1875" Wall x 3.625" ID Aluminum Round Tube 6061-T6-Extruded -
Part #: 26241

Click for more details

aluminum-round-tube-6061-t6-extruded-1superZoom

Dimensions

  • Outer Diameter: 4"
  • Wall: 0.1875"
  • Inner Diameter: 3.625"
See all available dimensions for this product
  • 12″ (1 ft.) - $53.92 ea.
  • 24″ (2 ft.) - $104.97 ea.
  • 36″ (3 ft.) - $143.53 ea.
  • 48″ (4 ft.) - $179.19 ea.
  • 72″ (6 ft.) - $253.43 ea.
  • 96″ (8 ft.) - $316.15 ea.
  • 288″ (24 ft.) - $791.01 ea. LTL freight starting at $245 on all lengths greater than 96"
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

$53.92 ea.
$53.92 for 1

Can't find what you're looking for?

Contact us for a custom quote