Square Steel Tube

Steel Square Tube

Steel Square Tube

Steel Square Tube

Square Steel Tube is a welded structural grade tubing that is available in either type A513 or A500 Grade B, depending on it's 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. It's 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.

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

MECHANICAL PROPERTIES:

Yield Point = 72 ksi (A513); 46 ksi (A500)
Tensile Strength = 87 ksi (A513); 58 ksi (A500)
Elongation in 2" = 10% (A513); 23% (A500)
Outside Corner Radius = 3X wall max.

CHEMICAL PROPERTIES:

Iron - 99%,
Carbon - .05%-.23%,
Manganese - .3%-.6% Max,
Phosphorous - .04% Max,
Sulfur - .04% Max

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

HOW TO MEASURE:
Height (A) X Width (B) X Wall Thickness (C) X Length

Product / Size / Weight / Stock

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

Stock Number

Item Size & Description

Weight
(lbs. / ft.)

Click! Arrow
to select Size

Qty

Price

Select Item

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

Select a Size$0.00

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

Select a Size$0.00

0.39 lb/ft

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

T15816

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

0.50 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

1.03 lb/ft

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

T17816

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

0.72 lb

Select a Size$0.00

0.72 lb/ft

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

T11116

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

0.82 lb

Select a Size$0.00

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

Select a Size$0.00

1.04 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

Select a Size$0.00

1.44 lb/ft

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

T111416

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

1.04 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

2.40 lb/ft

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

T111216

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

1.26 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

2.21 lb

Select a Size$0.00

2.21 lb/ft

T1112316 1-1/2 X 1-1/2 X 3/16 wall
A500 Square Steel Tube

T1112316

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

3.04 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

1.88 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

Select a Size$0.00

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

Select a Size$0.00

3.68 lb/ft

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

T12216

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

1.71 lb

Select a Size$0.00

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

Select a Size$0.00

2.14 lb/ft

T12212 2 X 2 X 12 GA (.109 wall)
A513 Square Steel Tube

T12212

2 X 2 X 12 GA (.109 wall)
A513 Square Steel Tube

2.81 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

5.41 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

4.65 lb

Select a Size$0.00

4.65 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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

3.24 lb/ft

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

T13318

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

4.58 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

12.17 lb/ft

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

T131218

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

5.68 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

4.32 lb/ft

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

T14418

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

6.22 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

14.00 lb/ft

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

T15511

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

8.16 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

28.43 lb/ft

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

T16611

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

9.85 lb

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

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

Select a Size$0.00

76.07 lb/ft

T11258 12 X 12 X 5/8 wall
A500 Square Steel Tube

T11258

12 X 12 X 5/8 wall
A500 Square Steel Tube

93.34 lb

Select a Size$0.00

93.34 lb/ft

T11638 16 X 16 X 3/8 wall
A500 Square Steel Tube

T11638

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

78.52 lb

Select a Size$0.00

78.52 lb/ft

T11612 16 X 16 X 1/2 wall
A500 Square Steel Tube

T11612

16 X 16 X 1/2 wall
A500 Square Steel Tube

103.30 lb

Select a Size$0.00

103.30 lb/ft

T11658 16 X 16 X 5/8 wall
A500 Square Steel Tube

T11658

16 X 16 X 5/8 wall
A500 Square Steel Tube

127.37 lb

Select a Size$0.00

127.37 lb/ft

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