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BS1387 Galvanized Steel Tube

BS1387 galvanized steel tubes, there are light,medium,heavy type in BS1387. Surface includes black and galvanized. End includes plain and Screwed & Socketed. Welcome to visit your inquiry!

Description


BS1387 galvanized steel tube


TUBE


Outside Dia.of Black/Galvanized Tube


Weight of Black / Galvanized Tube


SIZE

Minimum

Maximum

Wall thickness

Plain Ends

Screwed & Socketed

Pieces

INCH

NB (mm)

Inches

mm

Inches

mm

Inches

mm

Kg./Ft.

Kg./Mtr.

Kg./Ft.

Kg./Mtr.

per bundle

L

I

G

H

T

1/2"

15

0.825

21.0

0.841

21.4

0.079

2.0

0.289

0.947

0.291

0.956

153

3/4"

20

1.041

26.4

1.059

26.9

0.091

2.3

0.421

1.38

0.424

1.39

127

1"

25

1.309

33.2

1.328

33.8

0.102

2.6

0.603

1.98

0.61

2.00

91

1 1/4"

32

1.65

41.9

1.67

42.5

0.102

2.6

0.774

2.54

0.783

2.57

61

1 1/2"

40

1.882

47.8

1.903

48.4

0.114

2.9

0.985

3.23

0.997

3.27

61

2"

50

2.347

59.6

2.370

60.2

0.114

2.9

1.240

4.08

1.26

4.15

37

2 1/2"

65

2.960

75.2

2.991

76

0.126

3.2

1.740

5.71

1.78

5.83

37

3"

80

3.460

87.9

3.491

88.7

0.126

3.2

2.050

6.72

2.1

6.89

19

4"

100

4.450

113

4.481

113.9

0.142

3.6

2.970

9.75

3.05

10.0

19

M

E

D

I

U

M

1/2"

15

0.831

21.1

0.856

21.7

0.102

2.6

0.369

1.21

0.372

1.22

127

3/4"

20

1.047

26.6

1.072

27.2

0.102

2.6

0.475

1.56

0.479

1.57

101

1"

25

1.316

33.4

1.346

34.2

0.126

3.2

0.735

2.41

0.741

2.43

61

1 1/4"

32

1.657

42.1

1.687

42.9

0.126

3.2

0.945

3.10

0.954

3.13

51

1 1/2"

40

1.889

48

1.919

48.8

0.126

3.2

1.090

3.57

1.100

3.61

44

2"

50

2.354

59.8

2.394

60.8

0.142

3.6

1.530

5.03

1.550

5.10

29

2 1/2"

65

2.969

75.4

3.014

76.6

0.142

3.6

1.960

6.43

1.990

6.55

24

3"

80

3.469

88.1

3.524

89.5

0.157

4.0

2.550

8.37

2.600

8.54

19

4"

100

4.459

113.3

4.524

114.9

0.177

4.5

3.720

12.2

3.810

12.5

14

5"

125

5.461

138.7

5.535

140.6

0.197

5.0

5.060

16.6

5.210

17.1

10

6"

150

6.460

164.1

6.539

166.1

0.197

5.0

6.000

19.7

6.190

20.3

7

H

E

A

V

Y

1/2"

15

0.831

21.1

0.856

21.7

0.126

3.2

0.439

1.44

0.442

1.45

127

3/4"

20

1.047

26.6

1.072

27.2

0.126

3.2

0.570

1.87

0.573

1.88

101

1"

25

1.316

33.4

1.346

34.2

0.157

4.0

0.896

2.94

0.902

2.96

61

1 1/4"

32

1.657

42.1

1.687

42.9

0.157

4.0

1.160

3.80

1.170

3.83

51

1 1/2"

40

1.889

48

1.919

48.8

0.157

4.0

1.330

4.38

1.350

4.42

44

2"

50

2.354

59.8

2.394

60.8

0.177

4.5

1.890

6.19

1.910

6.26

29

2 1/2"

65

2.969

75.4

3.014

76.6

0.177

4.5

2.420

7.93

2.450

8.05

24

3"

80

3.469

88.1

3.524

89.5

0.197

5.0

3.140

10.3

3.200

10.5

19

4"

100

4.459

113.3

4.524

114.9

0.212

5.4

4.420

14.5

4.510

14.8

14

5"

125

5.461

138.7

5.535

140.6

0.212

5.4

5.460

17.9

5.610

18.4

10

6"

150

6.460

164.1

6.539

166.1

0.212

5.4

6.490

21.3

6.670

21.9

7


1. TOLERANCE                

a) On Thickness Light Tubes = + Not Limited, - 8%. Medium & Heavy tubes = + Not Limited , -10%

b) On Mass for quantities of 150 Mtr., and over of one size =+/- 4%, for single tube =+10% / -8%.


2. ENDS

Cut cleanly and nominally square with the axis of the tube and free from excessive burrs.

 

3. PROPERTIES 

a) Chemical = (Maximum) C - 0.20%, Mn - 1.20%, S - 0.045% & P - 0.045%

b) Mechanical = UTS - 320 to 460 N/mm2, YS - 195 N/mm2 (minimum) & %Elongation on 5.65 S0 - 20% (minimum).

 

4. BEND TEST (COLD): Applicable to tubes upto and including nominal size of 50mm.

a) For black tubes bend upto 180 degrees around a cylindrical mandrel, the Dia of which is 6 times the OD of pipe.

b) For Galvanized pipe bend upto 90 degree around a cylindrical mandrel, the dia of which is 8 times the OD of pipe .

Tubes shall withstand the test without showing any signs of fracture or failure.

 

5. FLATTENING TEST(COLD): Applicable to tubes greater than nominal size of 50mm.

a) For weld : Distance between the platens, measured under load is not greater than 75% of the OD of tube.

b) For Material: Distance between the platens, measured under load is not greater than 60% of the OD of tube.

 

6. LEAK TIGHTNESS TEST

a) Online NDT (Eddy current )

b) Hydro test at a pressure of 50 bar.

 

7. BLACK VARNISH

Tubes are uniformly varnished externally over their full lengths.

 

8. ZINC COATING(GALVANIZING)

55 to 70 Microns, uniformity of coating to withstand 4, one minute dips in copper sulphate solution.


 

9. THREADING

For 1/2" to 3/4" - 14 TPI and from 1" to 6" - 11 TPI

With 2 colour bands one near each ends of 50 mm width (A class - Brown, B Class - Blue & C Class - Red).

Check with standard BS ring and plug gauges.

 

10. MARKING

a) We can emboss mill sign brand, size, number online at every one meter interval over the length of pipe.

b) We can do online stencilling as per customer needs.

 

11. PACKING

Hexagonal type.


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