Square Hollow Sections

At Quality Steel, we present you with the best selection of steel elements of incredible quality. Our square hollow sections are a perfect example of this. Used primarily for columns, they are very similar to rectangular hollow sections in that they are not used as beams nearly as frequently as universal beams and universal columns, due to the shape making it difficult to bold anything to them or to bolt them to anything else. They are also referred to as box sections, and they can either be hot-rolled as one piece, or cold-formed from a flat sheet rolled at angles and welded, leaving behind a noticeable welding mark all along the piece.

Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
100x100 6,3 18,2 23,2
  8,0 22,6 28,8
  10,0 27,4 34,9
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
120x120 5,0 17,8 22,7
  6,3 22,2 28,2
  8,0 27,6 35,2
  10,0 33,7 42,9
  12,5 42,9 52,1
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
150x150 5,0 22,6 28,7
  6,3 28,1 35,8
  8,0 35,1 44,8
  10,0 43,1 54,9
  12,5 52,7 67,1
  16,0 65,2 83,0
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
200x200 5,0 30,4 38,7
  6,3 38,0 48,4
  8,0 47,7 60,8
  10,0 58,8 74,9
  12,5 72,3 92,1
  16,0 90,3 115,0
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
300x300 6,3 57,8 73,6
  8,0 72,8 92,8
  10,0 90,2 115,0
  12,5 112,0 142,0
  16,0 141,0 179,0
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
400x400 10,0 122,0 155,0
  12,5 151,0 192,0
  16,0 191,0 243,0
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
140x140 5,0 21,0 26,7
  6,3 26,1 33,3
  8,0 32,6 41,6
  10,0 40,0 50,9
  12,5 48,7 62,1
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
180x180 6,3 34,0 43,3
  8,0 42,7 54,4
  10,0 52,5 66,9
  12,5 64,4 82,1
  16,0 80,2 102,0
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
250x250 6,3 47,9 61,0
  8,0 60,3 76,8
  10,0 74,5 94,9
  12,5 91,9 117,0
  16,0 115,0 147,0
Size
BxB
mm
Thickness
T
mm
Mass
M
kg/m
Sectional area
A
cm2
350x350 10,0 106,0 135,0
  12,5 131,0 167,0
  16,0 166,0 211,0

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