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  • Boier tube,Alloy steel pipe,ASTM A106 steel pipe
  • Boier tube,Alloy steel pipe,ASTM A106 steel pipe
  • Boier tube,Alloy steel pipe,ASTM A106 steel pipe
  • Boier tube,Alloy steel pipe,ASTM A106 steel pipe
  • Boier tube,Alloy steel pipe,ASTM A106 steel pipe
  • Boier tube,Alloy steel pipe,ASTM A106 steel pipe

Squre Tube(SHS)

Category : Welded steel pipe

Type:Square Steel Tube

Size:10*10mm-500*500mm, WT:0.5-20mm,L:0.3-18m

Standard & Grade:

EN10210:S235JRH,S355J2H,S355NG,S355J0H

EN10219:S235JRH,S355J2H,S355NG,S355J0H

ASTMA500:Gr.A,Gr.B,Gr.c

AS1163:C250,C350,C450

Surface:Black bared,can be galvanized,oiled,painted.

Packing:Waterproof plastic bag,bundled with strip

  • Description
  • Specification
  • Standard
  • Process
  • Packing

Square tube is formed from coil and then ran through a series of dies.lt's welded from the inside to form its shape. Square tubes aregenerally used for maintenance and structural purposes.

Some examples of square tubing applications would be building construction, railings, and sign posts. They are measured by theiroutside dimensions and their wall thickness.

square Tube is available in the following metal types:Alloy Steel

Mild SteelCarbon Steelstainless Steel

Square tube has similar uses to RHSand is used for both industrial and construction applications. Square section RHS is available inthe same thicknesses as RHS and dimensions range from 20 mm x 20 mm to 400 mm x 400 mm.

Size by Inch  (diameter)

Thickness

Sizes by MM  (diameter)

Thickness

inch

inch

mm

mm 

1/2" x 1/2"

0.065"

16mm×16mm

0.4mm~1.5mm

3/4" x 3/4"

0.049"

18mm×18mm

0.4mm~1.5mm

0.065"

20mm×20mm

0.4mm~3mm

0.083"

22mm×22mm

0.4mm~3mm

0.120"

25mm×25mm

0.6mm~3mm

1" x 1"

0.049"

30mm×30mm

0.6mm~4mm

0.058"

32mm×32mm

0.6mm~4mm

0.065"

34mm×34mm

1mm~2mm

0.072"

35mm×35mm

1mm~4mm

0.083"

38mm×38mm

1mm~4mm

0.095"

40mm×40mm

1mm~4.5mm

0.109"

44mm×44mm

1mm~4.5mm

0.120"

45mm×45mm

1mm~5mm

1 1/8" x 1 1/8"

0.035"

50mm×50mm

1mm~5mm

0.049"

52mm×52mm

1mm~5mm

0.065"

60mm×60mm

1mm~5mm

0.109"

70mm×70mm

2mm~6mm

0.120"

75mm×75mm

2mm~6mm

1 1/4" x 1 1/4"

0.049"

76mm×76mm

2mm~6mm

0.065"

80mm×80mm

2mm~8mm

0.072"

85mm×85mm

2mm~8mm

0.083"

90mm×90mm

2mm~8mm

0.109"

95mm×95mm

2mm~8mm

0.120"

100mm×100mm

2mm~8mm

0.135"

120mm×120mm

4mm~8mm

0.156"

125mm×125mm

4mm~8mm

0.188"

130mm×130mm

4mm~8mm

1 1/2" x 1 1/2"

0.049"

140mm×140mm

6mm~10mm

0.065"

150mm×150mm

6mm~10mm

0.072"

160mm×160mm

6mm~10mm

0.083"

180mm×180mm

6mm~12mm

0.109"

200mm×200mm

6mm~30mm

0.120"

220mm×220mm

6mm~30mm

0.140"

250mm×250mm

6mm~30mm

0.188"

270mm×270mm

6mm~30mm

0.250"

280mm×280mm

6mm~30mm

1 3/4" x 1 3/4"

0.065"

300mm×300mm

8mm~30mm

0.083"

320mm×320mm

8mm~30mm

0.095"

350mm×350mm

8mm~30mm

0.109"

380mm×380mm

8mm~30mm

0.120"

400mm×400mm

8mm~30mm

0.188"

420mm×420mm

10mm~30mm

2" x 2"

0.049"

450mm×450mm

10mm~30mm

0.065"

480mm×480mm

10mm~30mm

0.083"

500mm×500mm

10mm~30mm

0.109"

550mm×550mm

10mm~40mm

0.120"

600mm×600mm

10mm~40mm

0.145"

700mm×700mm

10mm~40mm

0.165"

800mm×800mm

10mm~50mm

0.188"

900mm×900mm

10mm~50mm

0.250"

1000mm×1000mm

10mm~50mm

0.312"



2 1/4" x 2 1/4"

0.188"



0.250"



2 1/2" x 2 1/2"

0.083"



0.109"



0.120"



0.188"



0.250"



0.312"




Dimensional Tolerances

Dimensional Tolerances

Outside Diameter:

Twist:

Maximum twist per 3 feet of length

Largest outside dimension

Outside tolerance including convexity and concavity

Longest outside dimension

up to 2 1/2"

±.020"

2" to 2 1/2"inclusive

.062"

over 21/2" to 31/2" inclusive

±.025"

over 21/2" to 4" inclusive

.075"

over 31/2" to 51/2" inclusive

±.030"

over 4" to 6" inclusive

.087"

over 51/2"

±1%

over 6" to 8" inclusive

100"

Tolerances include allowance for convexity or concavity. For
rectangular sections, the tolerance calculated for the larger flat
dimension shall also apply to the smaller flat dimension. This
tolerance may be increased 50 percent when applied to the
smaller dimension, if the ratio of cross sectional dimension
is between 1.5 and 3, and 100 percent when the ratio exceeds 3.

over 8"

112"

Straightness:
Permissable variation shall be 1/8" times the number of feet of total length divided by 5:

.125" x (total length) ÷ 5

Wall Thickness:

Squareness of Sides:

Maximum allowable variation

±10%

Adjacent sides may deviate from 90° by a tolerance of plus or minus 2 degrees maximum.

(wall thickness is to be measured at the center of the flat, exclusive
of the weld area, and not at the corners)

Worner Radii:

Flash:

The radius of any outside corner shal not exceed three times
the specified wall thickness

Structural tubing usually is supplied flash-in. The height of the
flash will vary with the wall thickness of the tube.

AS1163  hollow sections

Grade and Chemical Composition (%)

Steel
Grades

Chemical composition( cast or product analysis%max.

C

Si

Mn

P

S

Cr

Mo

Al

Ti

Micro-alloying
elements

CE

C250
C250L0

0.12

0.05

0.5

0.03

0.03

0.15

0.1

0.1

0.04

0.03

0.25

C350
C350L0

0.2

0.25

1.6

0.03

0.03

0.3

0.1

0.1

0.04

0.15

0.43

C450
C450L0

0.2

0.25

1.7

0.03

0.03

0.3

0.35

0.1

0.04

0.15

0.43

 

Mechanical Properties

Steel
 Grade

Minimum
yield
strength

Minimum
tensile
strength

Minimum elongation as a propertion of the gauge length of5.65%

Circular hollow sections

Rectangular hollow sections

≦15

>15≦30

30

≦15

>15≦30

30

C250,C250L0

250

320

18

20

22

14

16

18

C350,C350L0

350

430

16

18

20

12

14

16

C450,C450L0

450

500

12

14

16

10

12

14


Dimensional Tolerance

Characteristic

Pipe (CHS)

Rectangular & Square

 (RHS / SHS)

External dimensions (d, b, d0)

±1% with minimum of ±0.5mm& maximum ±10%

±1% with minimum of ±0.5mm

Thickness (t)

d≤406.4mm

±10%

±10%


d>406.4mm

±10% with max of ±2mm


All Sections has a mass not less than 96% of specified nominal mass

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