Structural Steel Hollow Sections

Coated pipe,Pipe fitting,Galvanized pipe
Square Steel Tube
Square Steel Tube
Square Steel Tube

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.

Product description

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 are generally used for maintenance and structural purposes.

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

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

Mild Steel Carbon Steel stainless Steel

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

Product Specification

NPS Designator

Permissible Variations in Outside Diameter

Over In.

Under In.

1/8 to 1-1/2, incl

1/64 (0.015)

1/32 (0.031)

Over 1-1/2 to 4, incl

1/32 (0.031)

1/32 (0.031)

Over 4 to 8, incl

1/16 (0.062)

1/32 (0.031)

Over 8 to 18, incl

3/23 (0.093)

1/32 (0.031)

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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