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Carbon Steel Square Tube

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Carbon Steel Square Tube

Carbon steel square tubing is used in a variety of applications including building construction, manufacturing, and general fabrication. We carry carbon steel square tubing in A500/A513 hot-rolled steel square tube and 1018 cold-rolled steel square tube. So, whether you need workhorse hot-rolled steel tubing or the smooth, shiny finish of cold-rolled steel, Online Metals has the product you need. Price and order online and have your carbon steel square tube delivered directly to you.

A500-A513 square tube is stocked in most sizes at our metal supply warehouses in Portland, Dallas, Atlanta, Wallingford, Toledo, and Los Angeles. Standard lengths and cut to size are available.

We carry Carbon Steel Square Tube in 1018 Metric | A500-A513

Relevant Knowledge Hub Resources: 5 Reasons to Cut to Size | Hot Roll vs Cold Roll Steel

Material Properties

Carbon Steel Product Guide

-main

Carbon Steel Square Tube

Carbon steel square tubing is used in a variety of applications including building construction, manufacturing, and general fabrication. We carry carbon steel square tubing in A500/A513 hot-rolled steel square tube and 1018 cold-rolled steel square tube. So, whether you need workhorse hot-rolled steel tubing or the smooth, shiny finish of cold-rolled steel, Online Metals has the product you need. Price and order online and have your carbon steel square tube delivered directly to you.

A500-A513 square tube is stocked in most sizes at our metal supply warehouses in Portland, Dallas, Atlanta, Wallingford, Toledo, and Los Angeles. Standard lengths and cut to size are available.

We carry Carbon Steel Square Tube in 1018 Metric | A500-A513

Relevant Knowledge Hub Resources: 5 Reasons to Cut to Size | Hot Roll vs Cold Roll Steel

Material Properties

Carbon Steel Product Guide

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74 results

74 results

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064827

Sold & Shipped by AMP Metals LLC

Select a Size

QTY

Update

$77.53 for 1

$77.53 ea.

Dimensions

Height: 5"
Wall: 0.5"

Click for more details

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064827

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064827

Dimensions

Height: 5"
Wall: 0.5"

Select a Size

12″ (1 ft.) - $77.53 ea.
24″ (2 ft.) - $165.00 ea.
36″ (3 ft.) - $203.93 ea.
48″ (4 ft.) - $264.77 ea.
60″ (5 ft.) - $329.59 ea.
72″ (6 ft.) - $394.41 ea.
84″ (7 ft.) - $459.22 ea.
96″ (8 ft.) - $524.04 ea.
108″ (9 ft.) - $588.85 ea.
120″ (10 ft.) - $653.67 ea.
144″ (12 ft.) - $783.30 ea.
240″ (20 ft.) - $1,301.83 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064837

Sold & Shipped by AMP Metals LLC

Select a Size

QTY

Update

$56.86 for 1

$56.86 ea.

Dimensions

Height: 5"
Wall: 0.375"

Click for more details

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064837

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064837

Dimensions

Height: 5"
Wall: 0.375"

Select a Size

12″ (1 ft.) - $56.86 ea.
24″ (2 ft.) - $95.14 ea.
36″ (3 ft.) - $134.60 ea.
48″ (4 ft.) - $170.73 ea.
60″ (5 ft.) - $208.23 ea.
72″ (6 ft.) - $248.94 ea.
96″ (8 ft.) - $330.37 ea.
120″ (10 ft.) - $411.80 ea.
144″ (12 ft.) - $493.23 ea.
240″ (20 ft.) - $818.94 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

6" x 0.12" Carbon Steel Square Tube A500 Hot Rolled Part # 10396

Select a Size or Custom Cut

QTY

Update

$32.49 for 1

$32.49 ea.

Dimensions

Height: 6"
Wall: 0.12"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-desk10396

6" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled Part # 10397

Select a Size or Custom Cut

QTY

Update

$48.16 for 1

$48.16 ea.

Dimensions

Height: 6"
Wall: 0.1875"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-desk10397

6" x 0.5" Carbon Steel Square Tube A500 Hot Rolled Part # 10401

Select a Size or Custom Cut

QTY

Update

$123.53 for 1

$123.53 ea.

Dimensions

Height: 6"
Wall: 0.5"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-desk10401

6" x 0.25" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00063112

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$52.42 for 1

$52.42 ea.

Dimensions

Height: 6"
Wall: 0.25"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-deskmp-00063112

6" x 0.25" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00063112

Dimensions

Height: 6"
Wall: 0.25"

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $52.42 ea.
24″ (2 ft.) - $104.83 ea.
36″ (3 ft.) - $157.25 ea.
48″ (4 ft.) - $209.66 ea.
60″ (5 ft.) - $262.08 ea.
72″ (6 ft.) - $314.50 ea.
144″ (12 ft.) - $628.99 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064831

Sold & Shipped by AMP Metals LLC

Select a Size

QTY

Update

$71.83 for 1

$71.83 ea.

Dimensions

Height: 6"
Wall: 0.375"

Click for more details

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064831

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064831

Dimensions

Height: 6"
Wall: 0.375"

Select a Size

12″ (1 ft.) - $71.83 ea.
24″ (2 ft.) - $115.54 ea.
36″ (3 ft.) - $163.79 ea.
48″ (4 ft.) - $212.31 ea.
96″ (8 ft.) - $419.06 ea.
120″ (10 ft.) - $522.43 ea.
144″ (12 ft.) - $625.80 ea.
240″ (20 ft.) - $1,039.29 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064823

Sold & Shipped by AMP Metals LLC

Select a Size

QTY

Update

$146.29 for 1

$146.29 ea.

Dimensions

Height: 7"
Wall: 0.375"

Click for more details

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064823

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064823

Dimensions

Height: 7"
Wall: 0.375"

Select a Size

24″ (2 ft.) - $146.29 ea.
36″ (3 ft.) - $207.55 ea.
48″ (4 ft.) - $269.14 ea.
96″ (8 ft.) - $531.58 ea.
240″ (20 ft.) - $1,318.90 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064824

Sold & Shipped by AMP Metals LLC

Select a Size

QTY

Update

$300.20 for 1

$300.20 ea.

Dimensions

Height: 8"
Wall: 0.375"

Click for more details

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064824

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064824

Dimensions

Height: 8"
Wall: 0.375"

Select a Size

48″ (4 ft.) - $300.20 ea.
96″ (8 ft.) - $586.68 ea.
120″ (10 ft.) - $731.48 ea.
240″ (20 ft.) - $1,323.83 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00066982

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$161.70 for 1

$161.70 ea.

Dimensions

Height: 8"
Wall: 0.5"

Click for more details

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled-deskmp-00066982

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00066982

Dimensions

Height: 8"
Wall: 0.5"

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $161.70 ea.
24″ (2 ft.) - $323.40 ea.
36″ (3 ft.) - $474.60 ea.
48″ (4 ft.) - $609.00 ea.
72″ (6 ft.) - $693.00 ea.
96″ (8 ft.) - $903.00 ea.
120″ (10 ft.) - $1,123.50 ea.
144″ (12 ft.) - $1,344.00 ea.
240″ (20 ft.) - $2,203.95 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064836

Sold & Shipped by AMP Metals LLC

Select a Size

QTY

Update

$300.00 for 1

$300.00 ea.

Dimensions

Height: 10"
Wall: 0.5"

Click for more details

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064836

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064836

Dimensions

Height: 10"
Wall: 0.5"

Select a Size

12″ (1 ft.) - $300.00 ea.
24″ (2 ft.) - $445.00 ea.
36″ (3 ft.) - $452.29 ea.
48″ (4 ft.) - $599.72 ea.
60″ (5 ft.) - $747.14 ea.
72″ (6 ft.) - $894.57 ea.
84″ (7 ft.) - $1,042.00 ea.
96″ (8 ft.) - $1,189.42 ea.
108″ (9 ft.) - $1,216.23 ea.
120″ (10 ft.) - $1,350.25 ea.
144″ (12 ft.) - $1,618.53 ea.
240″ (20 ft.) - $2,596.44 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064830

Sold & Shipped by AMP Metals LLC

Select a Size

QTY

Update

$300.00 for 1

$300.00 ea.

Dimensions

Height: 12"
Wall: 0.5"

Click for more details

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064830

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064830

Dimensions

Height: 12"
Wall: 0.5"

Select a Size

12″ (1 ft.) - $300.00 ea.
24″ (2 ft.) - $400.00 ea.
36″ (3 ft.) - $600.00 ea.
48″ (4 ft.) - $724.55 ea.
60″ (5 ft.) - $903.01 ea.
72″ (6 ft.) - $1,081.47 ea.
84″ (7 ft.) - $1,259.94 ea.
96″ (8 ft.) - $1,308.61 ea.
108″ (9 ft.) - $1,470.85 ea.
120″ (10 ft.) - $1,633.09 ea.
144″ (12 ft.) - $1,957.57 ea.
240″ (20 ft.) - $3,141.63 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

20mm x 2mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22481

Pack of 3

QTY

Update

$228.05

$228.05 ea.

Dimensions

Height: 20mm
Wall: 2mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22481

25mm x 2mm Carbon Steel Square Tube 1018 Metric 120" Length [+/- 2"] Part # 23559

Pack of 1

QTY

Update

$154.30

$154.30 ea.

Dimensions

Height: 25mm
Wall: 2mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk23559

30mm x 3mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22482

Pack of 2

QTY

Update

$279.13

$279.13 ea.

Dimensions

Height: 30mm
Wall: 3mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22482

30mm x 2mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22483

Pack of 2

QTY

Update

$193.82

$193.82 ea.

Dimensions

Height: 30mm
Wall: 2mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22483

40mm x 4mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22488

Pack of 1

QTY

Update

$248.14

$248.14 ea.

Dimensions

Height: 40mm
Wall: 4mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22488

40mm x 3mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22487

Pack of 1

QTY

Update

$193.05

$193.05 ea.

Dimensions

Height: 40mm
Wall: 3mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22487

50mm x 3mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22489

Pack of 1

QTY

Update

$245.67

$245.67 ea.

Dimensions

Height: 50mm
Wall: 3mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22489

50mm x 4mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22490

Pack of 1

QTY

Update

$319.19

$319.19 ea.

Dimensions

Height: 50mm
Wall: 4mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22490

60mm x 4mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22491

Pack of 1

QTY

Update

$389.35

$389.35 ea.

Dimensions

Height: 60mm
Wall: 4mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22491

60mm x 5mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22492

Pack of 1

QTY

Update

$403.16

$403.16 ea.

Dimensions

Height: 60mm
Wall: 5mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22492

80mm x 3mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22493

Pack of 1

QTY

Update

$337.01

$337.01 ea.

Dimensions

Height: 80mm
Wall: 3mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22493

80mm x 4mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22494

Pack of 1

QTY

Update

$444.94

$444.94 ea.

Dimensions

Height: 80mm
Wall: 4mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22494

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