Metals Depot B/W logo

Square Steel Tube A513 / A500

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. 


SPECIFICATIONS: ASTM A513 (1020-1026); ASTM A500 Grade B

FINISH: A513 - Dark Blue/Black, smooth slight oil coating; 
  A500 - Blue/Dark Gray, slighty 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

Steel Square Tube
Stock
Number
Product Type Item Size & Description
A x B x C (Inches)
Weight
(lbs. / ft.)
Click! Arrow to
Select Size
Qty Select / Price
T11216 A513 Square Steel Tube 1/2 X 1/2 X 16 GA (.065 wall) 0.39
T15816 A513 Square Steel Tube 5/8 x 5/8 x 16GA (.065 wall) 0.50
T13416 A513 Square Steel Tube 3/4 X 3/4 X 16 GA (.065 wall) 0.60
T13414 A513 Square Steel Tube 3/4 X 3/4 X 14 GA (.083 wall) 0.75
T13411 A513 Square Steel Tube 3/4 X 3/4 X 11 GA (.120 wall) 1.03
T11116 A513 Square Steel Tube 1 X 1 X 16GA (.065 wall) 0.82
T11114 A513 Square Steel Tube 1 X 1 X 14 GA (.083 wall) 1.04
T11111 A513 Square Steel Tube 1 X 1 X 11 GA (.120 wall) 1.44
T111416 A513 Square Steel Tube 1-1/4 X 1-1/4 X16GA (.065 wall) 1.04
T111414 A513 Square Steel Tube 1-1/4 x 1-1/4 x 14 GA (.083 wall) 1.32
T111411 A513 Square Steel Tube 1-1/4 X 1-1/4 X 11 GA (.120 wall) 1.80
T1114316 A500 Square Steel Tube 1-1/4 X 1-1/4 X 3/16 wall 2.40
T111216 A513 Square Steel Tube 1-1/2 X 1-1/2 X 16GA (.065 wall) 1.26
T111214 A513 Square Steel Tube 1-1/2 X 1-1/2 X 14 GA (.083 wall) 1.67
T111211 A513 Square Steel Tube 1-1/2 X 1-1/2 X 11 GA (.120 wall) 2.21
T1112316 A500 Square Steel Tube 1-1/2 X 1-1/2 X 3/16 wall 3.04
T1112250 A500 Square Steel Tube 1-1/2 X 1-1/2 X 1/4 wall 4.07
T113414 A513 Square Steel Tube 1-3/4 X 1-3/4 X 14 GA (.083 wall) 1.88
T113411 A513 Square Steel Tube 1-3/4 X 1-3/4 X 11 GA (.120 wall) 2.58
T12216 A513 Square Steel Tube 2 X 2 X 16GA (.065 wall) 1.71
T12214 A513 Square Steel Tube 2 X 2 X 14 GA (.083 wall) 2.14
T12211 A500 Square Steel Tube 2 X 2 X 11 GA (.120 wall) 2.94
T122316 A500 Square Steel Tube 2 X 2 X 3/16 wall 4.49
T122250 A500 Square Steel Tube 2 X 2 X 1/4 wall 5.41
T121211 A500 Square Steel Tube 2-1/2 X 2-1/2 X 11 GA (.120 wall) 4.65
T1212316 A500 Square Steel Tube 2-1/2 X 2-1/2 X 3/16 wall 5.59
T1212250 A500 Square Steel Tube 2-1/2 X 2-1/2 X 1/4 wall 7.50
T13318 A500 Square Steel Tube 3 X 3 X 11GA (.120 wall) 4.58
T133316 A500 Square Steel Tube 3 X 3 X 3/16 wall 6.87
T13314 A500 Square Steel Tube 3 X 3 X 1/4 wall 8.81
T13338 A500 Square Steel Tube 3 X 3 X 3/8 wall 12.17
T131211 A500 Square Steel Tube 3-1/2 X 3-1/2 X 11GA (.120 wall) 5.68
T1312316 A500 Square Steel Tube 3-1/2 X 3-1/2 X 3/16 wall 8.15
T131214 A500 Square Steel Tube 3-1/2 X 3-1/2 X 1/4 wall 10.51
T131238 A500 Square Steel Tube 3-1/2 X 3-1/2 X 3/8 wall 14.72
T144083 A500 Square Steel Tube 4 X 4 X 14 GA (.083) wall 4.32
T14418 A500 Square Steel Tube 4 X 4 X 11GA (.120 wall) 6.22
T144316 A500 Square Steel Tube 4 X 4 X 3/16 wall 9.42
T14414 A500 Square Steel Tube 4 X 4 X 1/4 wall 12.21
T14438 A500 Square Steel Tube 4 X 4 X 3/8 wall 17.27
T14412 A500 Square Steel Tube 4 X 4 X 1/2 wall 21.63
T1412316 A500 Square Steel Tube 4-1/2 X 4-1/2 X 3/16 wall 10.70
T141214 A500 Square Steel Tube 4-1/2 X 4-1/2 X 1/4 wall 14.00
T15511 A500 Square Steel Tube 5 X 5 X 11GA (.120) wall 8.16
T155316 A500 Square Steel Tube 5 X 5 X 3/16 wall 11.97
T15514 A500 Square Steel Tube 5 X 5 X 1/4 wall 15.62
T15538 A500 Square Steel Tube 5 X 5 X 3/8 wall 23.12
T15512 A500 Square Steel Tube 5 X 5 X 1/2 wall 28.43
T16611 A500 Square Steel Tube 6 X 6 X 11ga (1/8") wall 9.85
T166316 A500 Square Steel Tube 6 X 6 X 3/16 wall 14.65
T16614 A500 Square Steel Tube 6 X 6 X 1/4 wall 19.02
T16638 A500 Square Steel Tube 6 X 6 X 3/8 wall 27.48
T16612 A500 Square Steel Tube 6 X 6 X 1/2 wall 35.24
T16658 A500 Square Steel Tube 6 X 6 X 5/8 wall 42.30
T17714 A500 Square Steel Tube 7 x 7 x 1/4 wall 22.42
T17738 A500 Square Steel Tube 7 X 7 X 3/8 wall 32.58
T17712 A500 Square Steel Tube 7 X 7 X 1/2 wall 42.05
T188316 A500 Square Steel Tube 8 X 8 X 3/16 wall 19.63
T18814 A500 Square Steel Tube 8 x 8 x 1/4 wall 26.00
T18838 A500 Square Steel Tube 8 x 8 x 3/8 wall 37.70
T18812 A500 Square Steel Tube 8 x 8 x 1/2 wall 49.00
T18858 A500 Square Steel Tube 8 X 8 X 5/8 wall 59.32
T110316 A500 Square Steel Tube 10 X 10 X 3/16 wall 24.73
T11014 A500 Square Steel Tube 10 x 10 x 1/4 wall 32.63
T11038 A500 Square Steel Tube 10 X 10 X 3/8 wall 47.90
T11012 A500 Square Steel Tube 10 X 10 X 1/2 wall 62.46
T11058 A500 Square Steel Tube 10 X 10 X 5/8 wall 76.33
T11214 A500 Square Steel Tube 12 x 12 x 1/4 wall 39.45
T11238 A500 Square Steel Tube 12 X 12 X 3/8 wall 58.10
T11212 A500 Square Steel Tube 12 X 12 X 1/2 wall 76.07
T11258 A500 Square Steel Tube 12 X 12 X 5/8 wall 93.34
T11438 A500 Square Steel Tube 14 X 14 X 3/8 wall 68.31
T11612 A500 Square Steel Tube 16 X 16 X 1/2 wall 103.30
Quantity Length in Feet, Inches and Fraction of Inch
PCS FT and IN  
Custom cut tolerances = plus / minus 1/16"
Call Us for Mitering and Large Quantities.
NOTICE: Custom Cut material is non-returnable and not cancelable once processing
begins. Custom cutting may require additional processing time.
Quantity Width in Inches Length in Inches
PCS and X and  
Custom cut tolerances = plus / minus 1/16"
Call Us for Mitering and Large Quantities.
NOTICE: Custom Cut material is non-returnable and not cancelable once processing
begins. Custom cutting may require additional processing time.