Carbon Steel Square Bar

We carry Carbon Steel Square Bar in A36, 1018, and 1045.

A36 offers good strength, high durability, heavy weight, easy weldability, and low cost. A36 steel is the most common low-carbon structural steel.

1018 steel is the most commonly available of the cold-rolled steels. It has a good combination of all of the typical traits of steel - strength, some ductility, and comparative ease of welding and machining.

1045 is a commonly used low carbon steel alloy with good strength, ductility, and ease of machining.

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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3" Carbon Steel Square Bar A36 Hot Rolled Part # mp-00038706

Sold & Shipped by MSP Metals

QTY

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$147.18 for 1

$147.18 ea.

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Dimensions

Height: 3"

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Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

Non-returnable

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3" Carbon Steel Square Bar A36 Hot Rolled Part # mp-00038706

Dimensions

Height: 3"

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $147.18 ea.
24″ (2 ft.) - $294.36 ea.
36″ (3 ft.) - $441.53 ea.
48″ (4 ft.) - $588.70 ea.
60″ (5 ft.) - $735.89 ea.
72″ (6 ft.) - $883.07 ea.
96″ (8 ft.) - $1177.42 ea.
144″ (12 ft.) - $1766.12 ea.

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

1/4" Carbon Steel Square Bar 1018 Cold Finish Part # 7088

QTY

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$4.18 for 1

$4.18 ea.

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Dimensions

Height: 0.25"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

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3/16" Carbon Steel Square Bar 1018 Cold Finish Part # 20658

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$4.50 for 1

$4.50 ea.

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Dimensions

Height: 0.1875"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

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1/2" Carbon Steel Square Bar 1018 Cold Finish Part # 7175

*Select a Size or Custom Cut

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$4.67 for 1

$4.67 ea.

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Dimensions

Height: 0.5"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

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1" Carbon Steel Square Bar 1018 Cold Finish Part # 7179

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$16.95 for 1

$16.95 ea.

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Dimensions

Height: 1"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

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1 1/2" Carbon Steel Square Bar 1018 Cold Finish Part # 19578

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$42.43 for 1

$42.43 ea.

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Dimensions

Height: 1.5"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

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3/8" Carbon Steel Square Bar 1018 Cold Finish Part # 7089

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$4.50 for 1

$4.50 ea.

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Price ea.

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Dimensions

Height: 0.375"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

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1/2" Carbon Steel Square Bar A36 Hot Rolled Part # 10277

QTY

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$4.50 for 1

$4.50 ea.

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Dimensions

Height: 0.5"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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3/8" Carbon Steel Square Bar A36 Hot Rolled Part # 10275

QTY

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$4.50 for 1

$4.50 ea.

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Dimensions

Height: 0.375"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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1" Carbon Steel Square Bar A36 Hot Rolled Part # 10282

QTY

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$10.56 for 1

$10.56 ea.

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Dimensions

Height: 1"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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5/8" Carbon Steel Square Bar 1018 Cold Finish Part # 7176

*Select a Size or Custom Cut

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$8.54 for 1

$8.54 ea.

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Qty

Price ea.

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Dimensions

Height: 0.625"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

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7/8" Carbon Steel Square Bar 1018 Cold Finish Part # 7178

*Select a Size or Custom Cut

QTY

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$16.38 for 1

$16.38 ea.

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Dimensions

Height: 0.875"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

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1 1/2" Carbon Steel Square Bar A36 Hot Rolled Part # 10284

QTY

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$27.08 for 1

$27.08 ea.

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Dimensions

Height: 1.5"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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3" Carbon Steel Square Bar 1018 Cold Finish Part # 13232

*Select a Size or Custom Cut

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$159.57 for 1

$159.57 ea.

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Qty

Price ea.

Savings

Less

Dimensions

Height: 3"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

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5" Carbon Steel Square Bar 1018 Cold Finish Part # mp-00066965

Sold & Shipped by MSP Metals

*Select a Size or Custom Cut

QTY

Update

$451.50 for 1

$451.50 ea.

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Dimensions

Height: 5"

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Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

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5" Carbon Steel Square Bar 1018 Cold Finish Part # mp-00066965

Dimensions

Height: 5"

Select a Size

12″ (1 ft.) - $451.50 ea.
24″ (2 ft.) - $903.00 ea.
36″ (3 ft.) - $1354.50 ea.
48″ (4 ft.) - $1806.00 ea.
72″ (6 ft.) - $2614.50 ea.
144″ (12 ft.) - $5187.00 ea.

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

1 1/4" Carbon Steel Square Bar A36 Hot Rolled Part # 10283

QTY

Update

$17.18 for 1

$17.18 ea.

Expand Details

Dimensions

Height: 1.25"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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3/4" Carbon Steel Square Bar A36 Hot Rolled Part # 10280

QTY

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$5.66 for 1

$5.66 ea.

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Dimensions

Height: 0.75"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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5/8" Carbon Steel Square Bar 12L14 Part # mp-00066808

Sold & Shipped by MSP Metals

*Select a Size or Custom Cut

QTY

Update

$12.08 for 1

$12.08 ea.

Expand Details

Dimensions

Height: 0.625"

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cold-roll-square-bar-1018-cold-finish-1superZoom

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

5/8" Carbon Steel Square Bar 12L14 Part # mp-00066808

Dimensions

Height: 0.625"

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $12.08 ea.
24″ (2 ft.) - $21.63 ea.
36″ (3 ft.) - $32.50 ea.
48″ (4 ft.) - $43.31 ea.
60″ (5 ft.) - $54.08 ea.
72″ (6 ft.) - $65.10 ea.

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

2 1/2" Carbon Steel Square Bar A36 Hot Rolled Part # 27525

QTY

Update

$71.20 for 1

$71.20 ea.

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Dimensions

Height: 2.5"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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2 3/4" Carbon Steel Square Bar 1018 Cold Finish Part # 19648

*Select a Size or Custom Cut

QTY

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$121.84 for 1

$121.84 ea.

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Qty

Price ea.

Savings

Less

Dimensions

Height: 2.75"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

Click for more details

6" Carbon Steel Square Bar A36 Hot Rolled Part # mp-00038682

Sold & Shipped by MSP Metals

QTY

Update

$699.09 for 1

$699.09 ea.

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Dimensions

Height: 6"

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Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

6" Carbon Steel Square Bar A36 Hot Rolled Part # mp-00038682

Dimensions

Height: 6"

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $699.09 ea.
24″ (2 ft.) - $1398.16 ea.
36″ (3 ft.) - $2097.25 ea.
48″ (4 ft.) - $2796.33 ea.
60″ (5 ft.) - $3495.42 ea.
72″ (6 ft.) - $4194.49 ea.
96″ (8 ft.) - $5592.66 ea.
144″ (12 ft.) - $8388.99 ea.

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

5/8" Carbon Steel Square Bar A36 Hot Rolled Part # 10279

QTY

Update

$4.50 for 1

$4.50 ea.

Expand Details

Dimensions

Height: 0.625"

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Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

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1 3/4" Carbon Steel Square Bar 1018 Cold Finish Part # 12740

*Select a Size or Custom Cut

QTY

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$56.51 for 1

$56.51 ea.

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Qty

Price ea.

Savings

Less

Dimensions

Height: 1.75"

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Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

Click for more details

3/4" Carbon Steel Square Bar 1018 Cold Finish Part # 7177

*Select a Size or Custom Cut

QTY

Update

$9.10 for 1

$9.10 ea.

Expand Details

Qty

Price ea.

Savings

Less

Dimensions

Height: 0.75"

Click for more details

Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT

FREEMTRAvailable

View more product details

Click for more details

2" Carbon Steel Square Bar A36 Hot Rolled Part # 10285

QTY

Update

$39.09 for 1

$39.09 ea.

Expand Details

Dimensions

Height: 2"

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Key Features

CUSTOM CUT

FREEMTRAvailable

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Carbon Steel Square Bar

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