Black & Galvanized Steel

Black & Galvanized Steel Tubes for ordinary uses in water gas,Air and steam
conforming to is : 1239( Part -I ) 2004 Equivalent to BS :1387 / 1985.

Black & Galvanized Steel

Black & Galvanized Steel Tubes for ordinary uses in water gas,Air and steam conforming to is : 1239( Part -I ) 2004 Equivalent to BS :1387 / 1985.

Normal Bore

& Series

Outside Diameter Wall Thickness Normal Mass of Steel Tube Sockets
Plain End Screwed & Socketed  
mm Inch Min.mm Max mm mm SWG

Kg/per

Mtr.

Mtrs/per

tonne

Kg/per

Mtr.

Mtrs/per

tonne

No.of pipes/

approx ton bundle

Min O.D

mm

Min Length

mm

15 L

15 M

15 H

½

½

1/3

21

21

21

21.4

21.8

21.8

2.00

2.60

3.20

14

12

10

0.947

1.210

1.440

1056

826

694

0.956

1.220

1.450

1046

820

690

165

132

110

27.0 37.0

20 L

20 M

20 H

¾

¾

¾

26.4

26.5

26.5

26.9

27.3

27.3

2.30

2.60

3.20

13

12

10

1.380

1.560

1.870

725

641

535

1.350

1.570

1.880

719

637

532

112

98

84

32.5 39.0

25 L

25 M

25 H

1

1

1

33.2

33.3

33.3

33.8

34.2

34.2

2.60

3.20

4.00

12

10

8

1.980

2.410

2.930

505

415

341

2.000

2.430

2.950

500

412

339

80

65

55

39.5 46.0

32 L

32 H

32 M

1 ¼

1 ¼

1 ¼

41.9

42.0

42.0

42.5

42.9

42.9

2.90

3.60

4.50

12

10

8

2.540

3.100

3.790

394

323

264

2.750

3.130

3.820

389

319

262

60

51

42

49.5 51.0

40 L

40 M

40 H

1 ½

1 ½

1 ½

47.8

47.9

47.9

48.4

48.8

48.8

3.20

3.60

4.80

11

9

7

3.230

3.560

4.370

310

281

229

3.270

3.600

4.410

306

278

227

48

45

36

56.0 51.0

50 L

50 M

50 H

2

2

2

59.6

59.7

59.7

60.2

60.8

60.8

3.60

4.50

5.40

11

9

7

4.080

5.030

6.190

245

199

162

4150

5.100

6.260

241

196

160

39

30

27

68.0 60.0

65 L

65M

65 H

2 ½

2 ½

2 ½

75.2

75.3

75.3

76.0

76.6

76.6

3.20

3.60

4.50

10

9

7

5.710

6.420

7.930

157

156

126

5.830

6.540

8.050

172

153

124

27

24

20

84.0 69.0

80 L

80 M

80 H

3

3

3

87.9

88.0

88.0

88.7

89.5

89.5

3.20

4.00

4.80

10

8

6

6.720

8.360

9.900

149

120

101

6.890

8.530

10.100

145

117

99

23

19

16

98.0 75.0

100 L

100 M

100 H

4

4

4

113.0

113.1

113.1

113.9

115.0

115.0

3.60

4.50

5.40

9

7

5

9.750

12.200

14.500

103

82

69

10.000

12.500

14.800

100

80

68

16

13

11

124.0 87.0

125 M

125 H

5

5

138.5

138.5

140.8

140.8

4.80

5.40

6

5

15.900

17.900

63

56

16.400

18.400

61

54

10

9

151.0 96.0

150 M

150 H

6

6

163.9

163.9

166.5

166.5

4.80

5.40

65

18.900

21.300

53

47

19.500

21.900

51

46

8

7

178.0 96.0

L = Light

M = Medium

H = Heavy

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Tolerances:-

A. THICKNESS   B. Weight   C. Length
1. Light Tubes + not limited - 8% 1. Single tube

( Light Series)

2. Single tube
( Medium and Heavy series)

3. For Quantity per Load of

10 tonnes minimum ( Light Series)

4. For Quantity per Load of
( Medium and Heavy series)

10 %

-8 %

Unless otherwise Specification 4 to 7 meters or as per specification
2. Medium and    Heavy Tubes + not limited -10%

± 10 %

   

+7.5%

- 5% ±7.5%
 
     

Manufacturing & Testing Flow Diagram of Electric Resistance Welded Black & Galvinized Pipes / Tubes

 

ASTL`s Advance Steel Tubes Limited is a public Limited Company manabed by high profiled technocrats and professionals.

The Company is in the business of black steel Tubes & Pipes.In 1983,it stated manufacturing of galvanized
iron steel tubes & Pipesranging from 15mm N.B to 250mm N.B. in various thickness maximum upto 10mm.
The company undertook a diversification program in 1996.

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