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Carbon Steel Square Tube

-60 Products

Carbon Steel Product Guide Product

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

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2.5" x 0.12" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10352

2.5" x 0.12" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10352

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Dimensions

  • Height: 2.5"
  • Wall: 0.12"
See all available dimensions for this product
  • 12″ (1 ft.) - $13.77 ea.
  • 24″ (2 ft.) - $26.79 ea.
  • 36″ (3 ft.) - $36.60 ea.
  • 44″ (44 in.) - $44.71 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $45.62 ea.
  • 72″ (6 ft.) - $64.42 ea.
  • 96″ (8 ft.) - $80.25 ea.
  • 144″ (12 ft.) - $99.90 ea.
  • 240″ (20 ft.) - $166.50 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $199.80 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$13.77 ea.
$13.77 for 1

2.5" x 0.25" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10355

2.5" x 0.25" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10355

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Dimensions

  • Height: 2.5"
  • Wall: 0.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $23.04 ea.
  • 24″ (2 ft.) - $44.82 ea.
  • 36″ (3 ft.) - $61.18 ea.
  • 44″ (44 in.) - $74.78 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $76.31 ea.
  • 72″ (6 ft.) - $107.77 ea.
  • 96″ (8 ft.) - $134.21 ea.
  • 240″ (20 ft.) - $278.46 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $334.16 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$23.04 ea.
$23.04 for 1

2.5" X 0.238" Wall Carbon Steel Square Tube A500 Flash Removed For Trailer Hitch - 
Part #: mp-00002175

2.5" X 0.238" Wall Carbon Steel Square Tube A500 Flash Removed For Trailer Hitch -
Part #: mp-00002175

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Dimensions

  • Height: 2.5"
  • Wall: 0.238"
See all available dimensions for this product
  • 6″ (6 in.) - $24.76 ea.
  • 12″ (1 ft.) - $33.84 ea.
  • 18″ (18 in.) - $42.92 ea.
  • 24″ (2 ft.) - $51.99 ea.
  • 30″ (30 in.) - $61.06 ea.
  • 36″ (3 ft.) - $70.17 ea.
  • 42″ (42 in.) - $79.25 ea.
  • 48″ (4 ft.) - $88.32 ea.
  • 54″ (54 in.) - $97.42 ea.
  • 60″ (5 ft.) - $106.49 ea.
  • 66″ (66 in.) - $126.36 ea.
  • 72″ (6 ft.) - $135.45 ea.
  • 78″ (78 in.) - $144.52 ea.
  • 84″ (7 ft.) - $153.59 ea.
  • 90″ (90 in.) - $162.67 ea.
  • 96″ (8 ft.) - $171.78 ea.

QTY

$24.76 ea.
$24.76 for 1
Sold and shipped by All Metals Inc

3" x 0.12" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10360

3" x 0.12" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10360

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Dimensions

  • Height: 3"
  • Wall: 0.12"
See all available dimensions for this product
  • 12″ (1 ft.) - $15.39 ea.
  • 24″ (2 ft.) - $29.98 ea.
  • 36″ (3 ft.) - $40.90 ea.
  • 44″ (44 in.) - $49.97 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $50.99 ea.
  • 72″ (6 ft.) - $72.03 ea.
  • 96″ (8 ft.) - $89.70 ea.
  • 144″ (12 ft.) - $111.68 ea.
  • 240″ (20 ft.) - $186.12 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $223.34 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$15.39 ea.
$15.39 for 1

3" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10362

3" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10362

Click for more details

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

Dimensions

  • Height: 3"
  • Wall: 0.1875"
See all available dimensions for this product
  • 12″ (1 ft.) - $25.65 ea.
  • 24″ (2 ft.) - $49.94 ea.
  • 36″ (3 ft.) - $68.15 ea.
  • 44″ (44 in.) - $83.29 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $84.99 ea.
  • 72″ (6 ft.) - $120.05 ea.
  • 96″ (8 ft.) - $149.52 ea.
  • 240″ (20 ft.) - $310.18 ea. -LTL freight rates apply
Create Custom Cut

QTY

$25.65 ea.
$25.65 for 1

3" x 0.25" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10363

3" x 0.25" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10363

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Dimensions

  • Height: 3"
  • Wall: 0.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $23.58 ea.
  • 24″ (2 ft.) - $44.52 ea.
  • 36″ (3 ft.) - $65.75 ea.
  • 44″ (44 in.) - $83.51 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $85.21 ea.
  • 72″ (6 ft.) - $117.38 ea.
  • 96″ (8 ft.) - $150.25 ea.
  • 240″ (20 ft.) - $347.82 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $417.38 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$23.58 ea.
$23.58 for 1
qty discount iconBuy More & Save up to 24% !
Qty
Price ea.
Savings
60+
$17.69
24%
More
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3.5" x 0.12" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10368

3.5" x 0.12" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10368

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

Dimensions

  • Height: 3.5"
  • Wall: 0.12"
See all available dimensions for this product
  • 12″ (1 ft.) - $15.89 ea.
  • 24″ (2 ft.) - $30.91 ea.
  • 36″ (3 ft.) - $42.22 ea.
  • 44″ (44 in.) - $51.59 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $52.64 ea.
  • 72″ (6 ft.) - $74.33 ea.
  • 96″ (8 ft.) - $92.59 ea.
  • 144″ (12 ft.) - $115.26 ea.
  • 240″ (20 ft.) - $192.10 ea. -LTL freight rates apply
Create Custom Cut

QTY

$15.89 ea.
$15.89 for 1

3.5" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10370

3.5" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10370

Click for more details

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

Dimensions

  • Height: 3.5"
  • Wall: 0.1875"
See all available dimensions for this product
  • 12″ (1 ft.) - $23.58 ea.
  • 24″ (2 ft.) - $44.57 ea.
  • 36″ (3 ft.) - $65.80 ea.
  • 44″ (44 in.) - $83.57 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $85.28 ea.
  • 72″ (6 ft.) - $117.50 ea.
  • 96″ (8 ft.) - $150.40 ea.
  • 240″ (20 ft.) - $348.14 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $417.76 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$23.58 ea.
$23.58 for 1
qty discount iconBuy More & Save up to 24% !
Qty
Price ea.
Savings
60+
$17.69
24%
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3.5" x 0.25" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10371

3.5" x 0.25" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10371

Click for more details

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

Dimensions

  • Height: 3.5"
  • Wall: 0.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $30.84 ea.
  • 24″ (2 ft.) - $58.27 ea.
  • 36″ (3 ft.) - $86.03 ea.
  • 44″ (44 in.) - $109.32 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $111.55 ea.
  • 72″ (6 ft.) - $153.65 ea.
  • 96″ (8 ft.) - $196.67 ea.
  • 240″ (20 ft.) - $455.26 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $546.32 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$30.84 ea.
$30.84 for 1

4" x 0.12" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10376

4" x 0.12" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10376
(1.5 out of 5) Read 1 review

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

Dimensions

  • Height: 4"
  • Wall: 0.12"
See all available dimensions for this product
  • 12″ (1 ft.) - $21.61 ea.
  • 24″ (2 ft.) - $42.05 ea.
  • 36″ (3 ft.) - $57.40 ea.
  • 44″ (44 in.) - $70.14 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $71.57 ea.
  • 72″ (6 ft.) - $101.08 ea.
  • 96″ (8 ft.) - $125.90 ea.
  • 144″ (12 ft.) - $156.72 ea.
  • 240″ (20 ft.) - $261.20 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $313.44 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$21.61 ea.
$21.61 for 1

4" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10378

4" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10378

Click for more details

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

Dimensions

  • Height: 4"
  • Wall: 0.1875"
See all available dimensions for this product
  • 12″ (1 ft.) - $25.31 ea.
  • 24″ (2 ft.) - $47.82 ea.
  • 36″ (3 ft.) - $70.61 ea.
  • 44″ (44 in.) - $89.70 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $91.53 ea.
  • 72″ (6 ft.) - $126.09 ea.
  • 96″ (8 ft.) - $161.42 ea.
  • 240″ (20 ft.) - $373.64 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $448.36 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$25.31 ea.
$25.31 for 1
qty discount iconBuy More & Save up to 25% !
Qty
Price ea.
Savings
5-9
$24.04
5%
10-14
$22.78
9%
15-29
$21.51
15%
30-59
$20.25
19%
60+
$18.98
25%
More
Less

4" x 0.25" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10379

4" x 0.25" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10379

Click for more details

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

Dimensions

  • Height: 4"
  • Wall: 0.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $30.76 ea.
  • 24″ (2 ft.) - $58.11 ea.
  • 36″ (3 ft.) - $85.78 ea.
  • 44″ (44 in.) - $108.99 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $111.21 ea.
  • 72″ (6 ft.) - $153.20 ea.
  • 96″ (8 ft.) - $196.08 ea.
  • 240″ (20 ft.) - $453.90 ea. -LTL freight rates apply
  • 288″ (24 ft.) - $544.68 ea. LTL freight starting at $245 on all lengths greater than 96"
Create Custom Cut

QTY

$30.76 ea.
$30.76 for 1

5" x 0.25" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 10391

5" x 0.25" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 10391

Click for more details

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

Dimensions

  • Height: 5"
  • Wall: 0.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $50.76 ea.
  • 24″ (2 ft.) - $95.92 ea.
  • 36″ (3 ft.) - $141.62 ea.
  • 44″ (44 in.) - $179.93 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $183.60 ea.
  • 72″ (6 ft.) - $252.90 ea.
Create Custom Cut

QTY

$50.76 ea.
$50.76 for 1
qty discount iconBuy More & Save up to 19% !
Qty
Price ea.
Savings
5-9
$48.22
5%
10-14
$45.68
10%
15-29
$43.15
14%
30+
$40.61
19%
More
Less

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

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

Click for more details

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

Dimensions

  • Height: 6"
  • Wall: 0.12"
See all available dimensions for this product
  • 12″ (1 ft.) - $28.35 ea.
  • 24″ (2 ft.) - $53.58 ea.
  • 36″ (3 ft.) - $79.10 ea.
  • 44″ (44 in.) - $100.51 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $102.56 ea.
  • 72″ (6 ft.) - $141.25 ea.
  • 96″ (8 ft.) - $180.81 ea.
  • 144″ (12 ft.) - $251.14 ea.
Create Custom Cut

QTY

$28.35 ea.
$28.35 for 1
qty discount iconBuy More & Save up to 25% !
Qty
Price ea.
Savings
5-9
$26.93
5%
10-14
$25.52
9%
15-59
$24.10
14%
60+
$21.26
25%
More
Less

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

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

Click for more details

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

Dimensions

  • Height: 6"
  • Wall: 0.1875"
See all available dimensions for this product
  • 12″ (1 ft.) - $36.15 ea.
  • 24″ (2 ft.) - $68.30 ea.
  • 36″ (3 ft.) - $100.83 ea.
  • 44″ (44 in.) - $128.10 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $130.71 ea.
  • 72″ (6 ft.) - $180.07 ea.
  • 96″ (8 ft.) - $230.47 ea.
Create Custom Cut

QTY

$36.15 ea.
$36.15 for 1
qty discount iconBuy More & Save up to 9% !
Qty
Price ea.
Savings
10+
$32.54
9%
More
Less

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

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

Click for more details

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

Dimensions

  • Height: 6"
  • Wall: 0.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $95.28 ea.
  • 24″ (2 ft.) - $179.99 ea.
  • 36″ (3 ft.) - $265.78 ea.
  • 44″ (44 in.) - $337.63 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $344.52 ea.
  • 72″ (6 ft.) - $474.62 ea.
  • 96″ (8 ft.) - $607.50 ea.
Create Custom Cut

QTY

$95.28 ea.
$95.28 for 1
qty discount iconBuy More & Save up to 20% !
Qty
Price ea.
Savings
3-4
$90.52
4%
5-9
$85.75
10%
10-14
$80.99
14%
15+
$76.22
20%
More
Less

6" x 0.25" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 27955

6" x 0.25" Carbon Steel Square Tube A500 Hot Rolled-
Part #: 27955

Click for more details

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

Dimensions

  • Height: 6"
  • Wall: 0.25"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

8" x 0.5" Carbon Steel Square Tube A500 Hot Rolled - 
Part #: 26213

8" x 0.5" Carbon Steel Square Tube A500 Hot Rolled -
Part #: 26213

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

Dimensions

  • Height: 8"
  • Wall: 0.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $127.10 ea.
  • 24″ (2 ft.) - $240.10 ea.
  • 36″ (3 ft.) - $354.54 ea.
  • 44″ (44 in.) - $450.38 ea.

    Order to avoid UPS additional handling fees

  • 48″ (4 ft.) - $459.57 ea.
  • 72″ (6 ft.) - $633.11 ea.
  • 96″ (8 ft.) - $810.37 ea.
  • 144″ (12 ft.) - $1,125.50 ea.
  • 240″ (20 ft.) - $1,875.84 ea. -LTL freight rates apply

QTY

$127.10 ea.
$127.10 for 1

12mm x 1.5mm Carbon Steel Square Tube 1018 Metric - 
Part #: 23626

12mm x 1.5mm Carbon Steel Square Tube 1018 Metric -
Part #: 23626

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

Dimensions

  • Height: 12mm
  • Wall: 1.5mm
See all available dimensions for this product

Pack of 1

QTY

$52.93 ea.
$52.93

15mm x 2mm Carbon Steel Square Tube 1018 Metric 48" Length [+/- 2"] - 
Part #: 27959

15mm x 2mm Carbon Steel Square Tube 1018 Metric 48" Length [+/- 2"]-
Part #: 27959

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

Dimensions

  • Height: 15mm
  • Wall: 2mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

15mm x 2mm Carbon Steel Square Tube 1018 Metric 48" Length [+/- 2"] - 
Part #: 28455

15mm x 2mm Carbon Steel Square Tube 1018 Metric 48" Length [+/- 2"]-
Part #: 28455

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Dimensions

  • Height: 15mm
  • Wall: 2mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

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

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

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

Dimensions

  • Height: 20mm
  • Wall: 2mm
See all available dimensions for this product

Pack of 3

QTY

$205.45 ea.
$205.45

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

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

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

Dimensions

  • Height: 25mm
  • Wall: 2mm
See all available dimensions for this product

Pack of 1

QTY

$139.01 ea.
$139.01

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

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

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

Dimensions

  • Height: 30mm
  • Wall: 3mm
See all available dimensions for this product

Pack of 2

QTY

$251.47 ea.
$251.47

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

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

Click for more details

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

Dimensions

  • Height: 30mm
  • Wall: 2mm
See all available dimensions for this product

Pack of 2

QTY

$174.61 ea.
$174.61
  • 1
  • 2

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