Erw Rectangular & Square Hollow Section

Length

6.0 mtr + 0.05 mm customized length ranging from 4 meter to 8 meter may be supply

Thickness

For all Size : + 10.00%

Outer Dimensions

1% with a minimum of 0.5 mm

Corners squareness

90 degree + 2 Degree

Corner Radius

Maximum, 3 x (Thickness of Section)

Weight, on individual length

+ 10% -8% on lots of metric tons + 7.5%

Straightness

Minimum 1:200th of any length measure along the center line (mill Straightened condition) unless otherwise specifically arranged

Twist tolerance

Maximum 2 mm : 1:0.5mm, 1 meter length, the measure relative vertical shift of any adjacent corner of the section, measure by keeping any side on flat surface.

End finish

Plain ended mechanically sheared, mill cut finish without further finishing

Surface Finish

Black without any surface treatment of oiling and vanishing

Packaging

Bundled by sealing metal stripe and each bundle is label for size, measurement, lot on, etc. approximate weight of each bundle is 1 metric tons, (+ 300 to 350 Kgs)

Identification

Marking to Iron Mark Emblem is surface punched on all RHS, SHS and CHS.

Size mm (O.D.)

Size Inch

Weight (Kg/ 6 mtr)

Thk. mm

19

1/2

3

1.15

19

1/2

4

1.25

25

3/4

4

1.05

25

3/4

5-6

1.25

25

3/4

7

1.90

31

1

6

1.20

31

1

7

1.40

31

1

8

1.70

31

1

9-10

2.00

41

1.1/4

7

1.15

41

1.1/4

9

1.40

41

1.1/4

11

1.90

41

1.1/4

12

2.00

41

1.1/4

13-14

2.30

41

1.1/4

16-17

2.90

48

1.1/2

8

1.05

48

1.1/2

9

1.20

48

1.1/2

11

1.60

48

1.1/2

12

1.70

48

1.1/2

14

2.00

48

1.1/2

16-17

2.40

48

1.1/2

20

2.90

58

2

10

1.10

58

2

11

1.25

58

2

12

1.30

58

2

15

1.70

58

2

17

2.00

58

2

20

2.30

58

2

23

2.0

76

3

17

1.50

76

3

20-22

1.80

88

4

25

1.90

Size mm (O.D.)

Size Inch

Weight (Kg/ 6 mtr)

Thk. mm

20 x 20

3/4 x 3/4

4

1.05

20 x 20

3/4 x 3/4

5-6

1.25

20 x 20

3/4 x 3/4

7

1.90

25 x 25

1 x 1

6

1.20

25 x 25

1 x 1

7

1.40

25 x 25

1 x 1

8

1.70

25 x 25

1 x 1

9-10

2.00

30 x 30

1.1/4 x 1.1/4

7

1.15

30 x 30

1.1/4 x 1.1/4

9

1.40

30 x 30

1.1/4 x 1.1/4

12

2.00

30 x 30

1.1/4 x 1.1/4

13-14

2.30

40 x 40

1.1/2 x 1.1/2

6

0.80

40 x 40

1.1/2 x 1.1/2

7

0.90

40 x 40

1.1/2 x 1.1/2

9

1.20

40 x 40

1.1/2 x 1.1/2

11

1.60

40 x 40

1.1/2 x 1.1/2

12

1.70

40 x 40

1.1/2 x 1.1/2

14

2.00

40 x 40

1.1/2 x 1.1/2

16-17

2.40

40 x 40

1.1/2 x 1.1/2

20

2.90

50 x 50

2 x 2

12

1.30

50 x 50

2 x 2

15

1.70

50 x 50

2 x 2

17

2.00

50 x 50

2 x 2

20

2.30

50 x 50

2 x 2

23

2.70

60 x 60

2.1/2 x 2.1/2

17

1.50

60 x 60

2.1/2 x 2.1/2

20-22

1.80

72 x 72

3 x 3

25

1.90

Size mm (O.D.)

Size Inch

Weight (Kg/ 6 mtr)

Thk. mm

40 x 20

1.1/4 x 3/4

7

1.15

40 x 20

1.1/4 x 3/4

9

1.40

40 x 20

1.1/4 x 3/4

12

2.00

40 x 25

1.1/4 x 1

7

1.15

40 x 25

1.1/4 x 1

9

1.40

40 x 25

1.1/4 x 1

12

2.00

50 x 25

2 x 1

7

0.90

50 x 25

2 x 1

9

1.20

50 x 25

2 x 1

12

1.70

50 x 25

2 x 1

14

2.00

50 x 25

2 x 1

16-17

2.40

50 x 25

2 x 1

20

2.90

60 x 40

2 x 1.1/2

12

1.30

60 x 40

2 x 1.1/2

15

1.70

60 x 40

2 x 1.1/2

17

2.00

60 x 40

2 x 1.1/2

20

2.30

75 x 25

3 x 1

12

1.30

75 x 25

3 x 1

15

1.70

75 x 25

3 x 1

17

2.00

75 x 25

3 x 1

20

2.30

80 x 40

3 x 1.5

17

1.50

80 x 40

3 x 1.5

20-22

1.80

96 x 48

4 x 2

25

1.90