Square Steel Tube

steel square bar

Square Steel Tube is a welded structural grade tubing that is available in either type A513 or A500 Grade B, depending on its size and wall thickness. Either grade is ideal for all structural applications, general fabrication, manufacturing and repairs. Steel Square Tube is widely used in industrial maintenance, agricultural implements, transportation equipment, truck beds, trailers, frames, etc. Its box-shape configuration allows for much greater strength and rigidity compared to angles or channels. This steel shape is easy to weld, cut, form and machine with the proper equipment and knowledge. Metals Depot stocks hundreds of sizes of square tube at wholesale prices in ready to ship precut and mill lengths or you can order just what you need custom Cut to Size in any quantity.

About

SPECIFICATIONS:

ASTM A513 (1020-1026)
ASTM A500 Grade B

FINISH:

A513 - Dark Blue/Black, smooth slight oil coating
A500 - Blue/Dark Gray, slightly grainy, dry

CHARACTERISTICS:

Welding = Excellent
Machining / Grinding = Good
Bending / Forming = Fair
Wear Resistance = Fair
Corrosion Resistance = Poor

MECHANICAL PROPERTIES:

Yield Point = 62 ksi (A513); 46 ksi (A500)
Tensile Strength = 72 ksi (A513); 58 ksi (A500)
Elongation in 2" = 10% (A513); 23% (A500)
Outside Corner Radius = 3X wall max.
*Data provided for reference only

AVAILABLE STOCK SIZES:

2ft, 4ft. 6ft, 8ft, 12ft, 24ft, or Cut to Size
Stock lengths may vary +/- 1/4"

HOW TO MEASURE:

Height (A) inches X Width (B) inches X Wall Thickness (C) X Length in feet.

About

SPECIFICATIONS:

ASTM A513 (1020-1026)
ASTM A500 Grade B

FINISH:

A513 - Dark Blue/Black, smooth slight oil coating
A500 - Blue/Dark Gray, slightly grainy, dry

CHARACTERISTICS:

Welding = Excellent
Machining / Grinding = Good
Bending / Forming = Fair
Wear Resistance = Fair
Corrosion Resistance = Poor

MECHANICAL PROPERTIES:

Yield Point = 62 ksi (A513); 46 ksi (A500)
Tensile Strength = 72 ksi (A513); 58 ksi (A500)
Elongation in 2" = 10% (A513); 23% (A500)
Outside Corner Radius = 3X wall max.
*Data provided for reference only

AVAILABLE STOCK SIZES:

2ft, 4ft. 6ft, 8ft, 12ft, 24ft, or Cut to Size
Stock lengths may vary +/- 1/4"

HOW TO MEASURE:

Height (A) inches X Width (B) inches X Wall Thickness (C) X Length in feet.

California Residents Warning!

Product / Size / Weight / Stock

Product / Size / Weight / Stock
Select Size & Quantity to Add to Cart

Stock #

Item Size & Description

Weight / Ft.

Select Size

QTY

Price

Add to Cart

T11218 1/2" X 1/2" X 18 GA (.049" wall)
A513 Square Steel Tube

T11218

1/2" X 1/2" X 18 GA (.049" wall)
A513 Square Steel Tube

0.31 lb/ft

Select a Size 0.00

Weight: 0.31 lb/ft

T11216 1/2" X 1/2" X 16 GA (.065" wall)
A513 Square Steel Tube

T11216

1/2" X 1/2" X 16 GA (.065" wall)
A513 Square Steel Tube

0.39 lb/ft

Select a Size 0.00

Weight: 0.39 lb/ft

T15816 5/8" x 5/8" x 16 GA (.065" wall)
A513 Square Steel Tube

T15816

5/8" x 5/8" x 16 GA (.065" wall)
A513 Square Steel Tube

0.50 lb/ft

Select a Size 0.00

Weight: 0.50 lb/ft

T13416 3/4" X 3/4" X 16 GA (.065" wall)
A513 Square Steel Tube

T13416

3/4" X 3/4" X 16 GA (.065" wall)
A513 Square Steel Tube

0.60 lb/ft

Select a Size 0.00

Weight: 0.60 lb/ft

T13414 3/4" X 3/4" X 14 GA (.083" wall)
A513 Square Steel Tube

T13414

3/4" X 3/4" X 14 GA (.083" wall)
A513 Square Steel Tube

0.75 lb/ft

Select a Size 0.00

Weight: 0.75 lb/ft

T13411 3/4" X 3/4" X 11 GA (.120" wall)
A513 Square Steel Tube

T13411

3/4" X 3/4" X 11 GA (.120" wall)
A513 Square Steel Tube

1.03 lb/ft

Select a Size 0.00

Weight: 1.03 lb/ft

T17816 7/8" X 7/8" X 16 GA (.065" wall)
A513 Square Steel Tube

T17816

7/8" X 7/8" X 16 GA (.065" wall)
A513 Square Steel Tube

0.72 lb/ft

Select a Size 0.00

Weight: 0.72 lb/ft

T11116 1" X 1" X 16 GA (.065" wall)
A513 Square Steel Tube

T11116

1" X 1" X 16 GA (.065" wall)
A513 Square Steel Tube

0.82 lb/ft

Select a Size 0.00

Weight: 0.82 lb/ft

T11114 1" X 1" X 14 GA (.083" wall)
A513 Square Steel Tube

T11114

1" X 1" X 14 GA (.083" wall)
A513 Square Steel Tube

1.04 lb/ft

Select a Size 0.00

Weight: 1.04 lb/ft

T11112 1" X 1" X 12 GA (.109" wall)
A513 Square Steel Tube

T11112

1" X 1" X 12 GA (.109" wall)
A513 Square Steel Tube

1.32 lb/ft

Select a Size 0.00

Weight: 1.32 lb/ft

T11111 1" X 1" X 11 GA (.120" wall)
A513 Square Steel Tube

T11111

1" X 1" X 11 GA (.120" wall)
A513 Square Steel Tube

1.44 lb/ft

Select a Size 0.00

Weight: 1.44 lb/ft

T111416 1-1/4" X 1-1/4" X 16 GA (.065" wall)
A513 Square Steel Tube

T111416

1-1/4" X 1-1/4" X 16 GA (.065" wall)
A513 Square Steel Tube

1.04 lb/ft

Select a Size 0.00

Weight: 1.04 lb/ft

T111414 1-1/4" x 1-1/4" x 14 GA (.083" wall)
A513 Square Steel Tube

T111414

1-1/4" x 1-1/4" x 14 GA (.083" wall)
A513 Square Steel Tube

1.32 lb/ft

Select a Size 0.00

Weight: 1.32 lb/ft

T111412 1-1/4" X 1-1/4" X 12 GA (.109" wall)
A513 Square Steel Tube

T111412

1-1/4" X 1-1/4" X 12 GA (.109" wall)
A513 Square Steel Tube

1.70 lb/ft

Select a Size 0.00

Weight: 1.70 lb/ft

T111411 1-1/4" X 1-1/4" X 11 GA (.120" wall)
A513 Square Steel Tube

T111411

1-1/4" X 1-1/4" X 11 GA (.120" wall)
A513 Square Steel Tube

1.80 lb/ft

Select a Size 0.00

Weight: 1.80 lb/ft

T1114316 1-1/4" X 1-1/4" X 3/16" wall
A500 Square Steel Tube

T1114316

1-1/4" X 1-1/4" X 3/16" wall
A500 Square Steel Tube

2.40 lb/ft

Select a Size 0.00

Weight: 2.40 lb/ft

T111216 1-1/2" X 1-1/2" X 16 GA (.065" wall)
A513 Square Steel Tube

T111216

1-1/2" X 1-1/2" X 16 GA (.065" wall)
A513 Square Steel Tube

1.26 lb/ft

Select a Size 0.00

Weight: 1.26 lb/ft

T111214 1-1/2" X 1-1/2" X 14 GA (.083" wall)
A513 Square Steel Tube

T111214

1-1/2" X 1-1/2" X 14 GA (.083" wall)
A513 Square Steel Tube

1.67 lb/ft

Select a Size 0.00

Weight: 1.67 lb/ft

T111212 1-1/2" X 1-1/2" X 12 GA (.109" wall)
A513 Square Steel Tube

T111212

1-1/2" X 1-1/2" X 12 GA (.109" wall)
A513 Square Steel Tube

2.07 lb/ft

Select a Size 0.00

Weight: 2.07 lb/ft

T111211 1-1/2" X 1-1/2" X 11 GA (.120" wall)
A513 Square Steel Tube

T111211

1-1/2" X 1-1/2" X 11 GA (.120" wall)
A513 Square Steel Tube

2.22 lb/ft

Select a Size 0.00

Weight: 2.22 lb/ft

T1112316 1-1/2" X 1-1/2" X 3/16" wall (.180" wall)
A500 Square Steel Tube

T1112316

1-1/2" X 1-1/2" X 3/16" wall (.180" wall)
A500 Square Steel Tube

3.04 lb/ft

Select a Size 0.00

Weight: 3.04 lb/ft

T1112250 1-1/2" X 1-1/2" X 1/4" wall
A500 Square Steel Tube

T1112250

1-1/2" X 1-1/2" X 1/4" wall
A500 Square Steel Tube

4.07 lb/ft

Select a Size 0.00

Weight: 4.07 lb/ft

T113414 1-3/4" X 1-3/4" X 14 GA (.083" wall)
A513 Square Steel Tube

T113414

1-3/4" X 1-3/4" X 14 GA (.083" wall)
A513 Square Steel Tube

1.88 lb/ft

Select a Size 0.00

Weight: 1.88 lb/ft

T113412 1-3/4" X 1-3/4" X 12 GA (.105" wall)
A513 Square Steel Tube

T113412

1-3/4" X 1-3/4" X 12 GA (.105" wall)
A513 Square Steel Tube

2.43 lb/ft

Select a Size 0.00

Weight: 2.43 lb/ft

T113411 1-3/4" X 1-3/4" X 11 GA (.120" wall)
A513 Square Steel Tube

T113411

1-3/4" X 1-3/4" X 11 GA (.120" wall)
A513 Square Steel Tube

2.58 lb/ft

Select a Size 0.00

Weight: 2.58 lb/ft

T1134316 1-3/4" X 1-3/4" X 3/16" wall
A500 Square Steel Tube

T1134316

1-3/4" X 1-3/4" X 3/16" wall
A500 Square Steel Tube

3.68 lb/ft

Select a Size 0.00

Weight: 3.68 lb/ft

T12216 2" X 2" X 16 GA (.065" wall)
A513 Square Steel Tube

T12216

2" X 2" X 16 GA (.065" wall)
A513 Square Steel Tube

1.71 lb/ft

Select a Size 0.00

Weight: 1.71 lb/ft

T12214 2" X 2" X 14 GA (.083" wall)
A513 Square Steel Tube

T12214

2" X 2" X 14 GA (.083" wall)
A513 Square Steel Tube

2.14 lb/ft

Select a Size 0.00

Weight: 2.14 lb/ft

T12212 2" X 2" X 12 GA (.109" wall)
A500 Square Steel Tube

T12212

2" X 2" X 12 GA (.109" wall)
A500 Square Steel Tube

2.81 lb/ft

Select a Size 0.00

Weight: 2.81 lb/ft

T12211 2" X 2" X 11 GA (.120" wall)
A500 Square Steel Tube

T12211

2" X 2" X 11 GA (.120" wall)
A500 Square Steel Tube

2.94 lb/ft

Select a Size 0.00

Weight: 2.94 lb/ft

T122316 2" X 2" X 3/16" wall
A500 Square Steel Tube

T122316

2" X 2" X 3/16" wall
A500 Square Steel Tube

4.32 lb/ft

Select a Size 0.00

Weight: 4.32 lb/ft

T122250 2" X 2" X 1/4" wall
A500 Square Steel Tube

T122250

2" X 2" X 1/4" wall
A500 Square Steel Tube

5.41 lb/ft

Select a Size 0.00

Weight: 5.41 lb/ft

T121214 2-1/2" X 2-1/2" X 14 GA (.083" wall)
A500 Square Steel Tube

T121214

2-1/2" X 2-1/2" X 14 GA (.083" wall)
A500 Square Steel Tube

2.73 lb/ft

Select a Size 0.00

Weight: 2.73 lb/ft

T121212 2-1/2" X 2-1/2" X 12 GA (.109" wall)
A513 Square Steel Tube

T121212

2-1/2" X 2-1/2" X 12 GA (.109" wall)
A513 Square Steel Tube

3.55 lb/ft

Select a Size 0.00

Weight: 3.55 lb/ft

T121211 2-1/2" X 2-1/2" X 11 GA (.120" wall)
A500 Square Steel Tube

T121211

2-1/2" X 2-1/2" X 11 GA (.120" wall)
A500 Square Steel Tube

3.90 lb/ft

Select a Size 0.00

Weight: 3.90 lb/ft

T1212316 2-1/2" X 2-1/2" X 3/16" wall
A500 Square Steel Tube

T1212316

2-1/2" X 2-1/2" X 3/16" wall
A500 Square Steel Tube

5.59 lb/ft

Select a Size 0.00

Weight: 5.59 lb/ft

T1212238 2-1/2" X 2-1/2" X .238" wall (2.024" Inside)
A500 Square Telescopic Tube - Smooth Inside

T1212238

2-1/2" X 2-1/2" X .238" wall (2.024" Inside)
A500 Square Telescopic Tube - Smooth Inside

6.83 lb/ft

Select a Size 0.00

Weight: 6.83 lb/ft

T1212250 2-1/2" X 2-1/2" X 1/4" wall
A500 Square Steel Tube

T1212250

2-1/2" X 2-1/2" X 1/4" wall
A500 Square Steel Tube

7.50 lb/ft

Select a Size 0.00

Weight: 7.50 lb/ft

T133083 3" X 3" X 14 GA (.083" wall)
A500 Square Steel Tube

T133083

3" X 3" X 14 GA (.083" wall)
A500 Square Steel Tube

3.24 lb/ft

Select a Size 0.00

Weight: 3.24 lb/ft

T13318 3" X 3" X 11 GA (.120" wall)
A500 Square Steel Tube

T13318

3" X 3" X 11 GA (.120" wall)
A500 Square Steel Tube

4.58 lb/ft

Select a Size 0.00

Weight: 4.58 lb/ft

T133316 3" X 3" X 3/16" wall
A500 Square Steel Tube

T133316

3" X 3" X 3/16" wall
A500 Square Steel Tube

6.87 lb/ft

Select a Size 0.00

Weight: 6.87 lb/ft

T13314 3" X 3" X 1/4" wall
A500 Square Steel Tube

T13314

3" X 3" X 1/4" wall
A500 Square Steel Tube

8.81 lb/ft

Select a Size 0.00

Weight: 8.81 lb/ft

T13338 3" X 3" X 3/8" wall
A500 Square Steel Tube

T13338

3" X 3" X 3/8" wall
A500 Square Steel Tube

12.17 lb/ft

Select a Size 0.00

Weight: 12.17 lb/ft

T131218 3-1/2" X 3-1/2" X 11 GA (.120" wall)
A500 Square Steel Tube

T131218

3-1/2" X 3-1/2" X 11 GA (.120" wall)
A500 Square Steel Tube

5.68 lb/ft

Select a Size 0.00

Weight: 5.68 lb/ft

T1312316 3-1/2" X 3-1/2" X 3/16" wall
A500 Square Steel Tube

T1312316

3-1/2" X 3-1/2" X 3/16" wall
A500 Square Steel Tube

8.15 lb/ft

Select a Size 0.00

Weight: 8.15 lb/ft

T131214 3-1/2" X 3-1/2" X 1/4" wall
A500 Square Steel Tube

T131214

3-1/2" X 3-1/2" X 1/4" wall
A500 Square Steel Tube

10.51 lb/ft

Select a Size 0.00

Weight: 10.51 lb/ft

T131238 3-1/2" X 3-1/2" X 3/8" wall
A500 Square Steel Tube

T131238

3-1/2" X 3-1/2" X 3/8" wall
A500 Square Steel Tube

14.72 lb/ft

Select a Size 0.00

Weight: 14.72 lb/ft

T144083 4" X 4" X 14 GA (.083" wall)
A500 Square Steel Tube

T144083

4" X 4" X 14 GA (.083" wall)
A500 Square Steel Tube

4.32 lb/ft

Select a Size 0.00

Weight: 4.32 lb/ft

T14418 4" X 4" X 11 GA (.120" wall)
A500 Square Steel Tube

T14418

4" X 4" X 11 GA (.120" wall)
A500 Square Steel Tube

6.22 lb/ft

Select a Size 0.00

Weight: 6.22 lb/ft

T144316 4" X 4" X 3/16" wall
A500 Square Steel Tube

T144316

4" X 4" X 3/16" wall
A500 Square Steel Tube

9.42 lb/ft

Select a Size 0.00

Weight: 9.42 lb/ft

T14414 4" X 4" X 1/4" wall
A500 Square Steel Tube

T14414

4" X 4" X 1/4" wall
A500 Square Steel Tube

12.21 lb/ft

Select a Size 0.00

Weight: 12.21 lb/ft

T14438 4" X 4" X 3/8" wall
A500 Square Steel Tube

T14438

4" X 4" X 3/8" wall
A500 Square Steel Tube

17.27 lb/ft

Select a Size 0.00

Weight: 17.27 lb/ft

T14412 4" X 4" X 1/2" wall
A500 Square Steel Tube

T14412

4" X 4" X 1/2" wall
A500 Square Steel Tube

21.63 lb/ft

Select a Size 0.00

Weight: 21.63 lb/ft

T1412316 4-1/2" X 4-1/2" X 3/16" wall
A500 Square Steel Tube

T1412316

4-1/2" X 4-1/2" X 3/16" wall
A500 Square Steel Tube

10.70 lb/ft

Select a Size 0.00

Weight: 10.70 lb/ft

T141214 4-1/2" X 4-1/2" X 1/4" wall
A500 Square Steel Tube

T141214

4-1/2" X 4-1/2" X 1/4" wall
A500 Square Steel Tube

14.00 lb/ft

Select a Size 0.00

Weight: 14.00 lb/ft

T15511 5" X 5" X 11 GA (.120" wall)
A500 Square Steel Tube

T15511

5" X 5" X 11 GA (.120" wall)
A500 Square Steel Tube

8.16 lb/ft

Select a Size 0.00

Weight: 8.16 lb/ft

T155316 5" X 5" X 3/16" wall
A500 Square Steel Tube

T155316

5" X 5" X 3/16" wall
A500 Square Steel Tube

11.97 lb/ft

Select a Size 0.00

Weight: 11.97 lb/ft

T15514 5" X 5" X 1/4" wall
A500 Square Steel Tube

T15514

5" X 5" X 1/4" wall
A500 Square Steel Tube

15.62 lb/ft

Select a Size 0.00

Weight: 15.62 lb/ft

T15538 5" X 5" X 3/8" wall
A500 Square Steel Tube

T15538

5" X 5" X 3/8" wall
A500 Square Steel Tube

23.12 lb/ft

Select a Size 0.00

Weight: 23.12 lb/ft

T15512 5" X 5" X 1/2" wall
A500 Square Steel Tube

T15512

5" X 5" X 1/2" wall
A500 Square Steel Tube

28.43 lb/ft

Select a Size 0.00

Weight: 28.43 lb/ft

T16611 6" X 6" X 11 GA (1/8" wall)
A500 Square Steel Tube

T16611

6" X 6" X 11 GA (1/8" wall)
A500 Square Steel Tube

9.85 lb/ft

Select a Size 0.00

Weight: 9.85 lb/ft

T166316 6" X 6" X 3/16" wall
A500 Square Steel Tube

T166316

6" X 6" X 3/16" wall
A500 Square Steel Tube

14.65 lb/ft

Select a Size 0.00

Weight: 14.65 lb/ft

T16614 6" X 6" X 1/4" wall
A500 Square Steel Tube

T16614

6" X 6" X 1/4" wall
A500 Square Steel Tube

19.02 lb/ft

Select a Size 0.00

Weight: 19.02 lb/ft

T16638 6" X 6" X 3/8" wall
A500 Square Steel Tube

T16638

6" X 6" X 3/8" wall
A500 Square Steel Tube

27.48 lb/ft

Select a Size 0.00

Weight: 27.48 lb/ft

T16612 6" X 6" X 1/2" wall
A500 Square Steel Tube

T16612

6" X 6" X 1/2" wall
A500 Square Steel Tube

35.24 lb/ft

Select a Size 0.00

Weight: 35.24 lb/ft

T17714 7" x 7" x 1/4" wall
A500 Square Steel Tube

T17714

7" x 7" x 1/4" wall
A500 Square Steel Tube

22.42 lb/ft

Select a Size 0.00

Weight: 22.42 lb/ft

T17738 7" X 7" X 3/8" wall
A500 Square Steel Tube

T17738

7" X 7" X 3/8" wall
A500 Square Steel Tube

32.58 lb/ft

Select a Size 0.00

Weight: 32.58 lb/ft

T17712 7" X 7" X 1/2" wall
A500 Square Steel Tube

T17712

7" X 7" X 1/2" wall
A500 Square Steel Tube

42.05 lb/ft

Select a Size 0.00

Weight: 42.05 lb/ft

T188316 8" X 8" X 3/16" wall
A500 Square Steel Tube

T188316

8" X 8" X 3/16" wall
A500 Square Steel Tube

19.63 lb/ft

Select a Size 0.00

Weight: 19.63 lb/ft

T18814 8" x 8" x 1/4" wall
A500 Square Steel Tube

T18814

8" x 8" x 1/4" wall
A500 Square Steel Tube

26.00 lb/ft

Select a Size 0.00

Weight: 26.00 lb/ft

T18838 8" x 8" x 3/8" wall
A500 Square Steel Tube

T18838

8" x 8" x 3/8" wall
A500 Square Steel Tube

37.70 lb/ft

Select a Size 0.00

Weight: 37.70 lb/ft

T18812 8" x 8" x 1/2" wall
A500 Square Steel Tube

T18812

8" x 8" x 1/2" wall
A500 Square Steel Tube

49.00 lb/ft

Select a Size 0.00

Weight: 49.00 lb/ft

T18858 8" X 8" X 5/8" wall
A500 Square Steel Tube

T18858

8" X 8" X 5/8" wall
A500 Square Steel Tube

59.32 lb/ft

Select a Size 0.00

Weight: 59.32 lb/ft

T110316 10" X 10" X 3/16" wall
A500 Square Steel Tube

T110316

10" X 10" X 3/16" wall
A500 Square Steel Tube

24.73 lb/ft

Select a Size 0.00

Weight: 24.73 lb/ft

T11014 10" x 10" x 1/4" wall
A500 Square Steel Tube

T11014

10" x 10" x 1/4" wall
A500 Square Steel Tube

32.63 lb/ft

Select a Size 0.00

Weight: 32.63 lb/ft

T11038 10" X 10" X 3/8" wall
A500 Square Steel Tube

T11038

10" X 10" X 3/8" wall
A500 Square Steel Tube

47.90 lb/ft

Select a Size 0.00

Weight: 47.90 lb/ft

T11012 10" X 10" X 1/2" wall
A500 Square Steel Tube

T11012

10" X 10" X 1/2" wall
A500 Square Steel Tube

62.46 lb/ft

Select a Size 0.00

Weight: 62.46 lb/ft

T11058 10" X 10" X 5/8" wall
A500 Square Steel Tube

T11058

10" X 10" X 5/8" wall
A500 Square Steel Tube

76.33 lb/ft

Select a Size 0.00

Weight: 76.33 lb/ft

T11214 12" x 12" x 1/4" wall
A500 Square Steel Tube

T11214

12" x 12" x 1/4" wall
A500 Square Steel Tube

39.45 lb/ft

Select a Size 0.00

Weight: 39.45 lb/ft

T11238 12" X 12" X 3/8" wall
A500 Square Steel Tube

T11238

12" X 12" X 3/8" wall
A500 Square Steel Tube

58.10 lb/ft

Select a Size 0.00

Weight: 58.10 lb/ft

T11212 12" X 12" X 1/2" wall
A500 Square Steel Tube

T11212

12" X 12" X 1/2" wall
A500 Square Steel Tube

76.07 lb/ft

Select a Size 0.00

Weight: 76.07 lb/ft