TECHNICAL DATA OF MILD STEEL BLACK AND GALVANISED TUBES CONFORMING TO

IS : 1239 ( PART1 )  1990 EQUIVALENT TO BS-1387/1985

NOMINAL BORE & CLASS

APPROX OUTSIDE DIAMETER

WALL THICKNESS

NOMINAL MASS OF STEEL TUBES

SOCKETS

NO OF PIPES FOR APPROX TONNE BUNDLE

PLAIN END

SCREWED AND SOCKETED

mm

inch

mm

mm

SWG

Kg/m

mtrs/tone

Kg/m

mtrs/tone

Min O.D.

Min Lon

15  L
M
H

0.50
0.50
0.50

21.2
21.4
21.4

2.0
2.6
3.2

14
12
10

0.947
1.21
10

1056
826
694

0.956
1.22
1.45

1046
820
690

27.0

37.0

165
132
110

20  L
M
H

0.75
0.75
0.75

26.7
26.9
26.9

2.3
2.6
3.2

13
12
10

1.38
1.56
1.87

725
641
535

1.39
1.57
1.88

719
635
532

32.5

39.0

112
98
84

25  L
M
H

1.00
1.00
1.00

33.6
33.7
33.7

2.6
3.2
4.0

12
10
8

1.98
2.41
2.93

505
415
341

2.00
2.43
2.95

500
412
339

39.5

46.0

80
65
55

32  L
M
H

1.25
1.25
1.25

42.2
42.4
42.4

2.6
3.2
4.0
12
10
8
2.54
3.10
3.79
394
323
264
2.57
3.13
3.82
389
319
262
49.0 51.0 60
51
42

40  L
M
H

1.50
1.50
1.50

48.3
48.3
48.3

2.9
3.2
4.0
11
10
8
3.23
3.56
4.37
310
281
229
3.27
3.60
4.41
306
278
227
56.0 51.0 48
45
36

50  L
M
H

2.00
2.00
2.00

59.9
60.3
60.3

2.9
3.6
4.5
11
9
7
4.08
5.03
6.19
245
199
162
4.15
5.10
6.26
241
196
160
68.0 60.0 39
30
27

65  L
M
H

2.50
2.50
2.50

75.6
76.0
76.0

3.2
3.6
4.5
10
9
7
5.71
6.42
7.93
175
156
126
5.83
6.54
8.05
172
153
124
84.0 69.0 27
24
20

80  L
M
H

3.00
3.00
3.00

88.4
88.8
88.8

3.2
4.0
4.8
10
8
6
6.72
8.36
9.90
149
120
101
6.89
8.54
10.40
145
117
96
98.0 75.0 23
19
16

100 L
M
H

4.00
4.00
4.00

113.5
114.0
114.0

3.6
4.5
5.4
9
7
5
9.75
12.20
14.50
103
82
69
10.00
12.50
14.80
100
80
68
124.0 87.0 16
13
11

125 M
H


5.00
5.00


1397
1397


4.8
5.4

6
5

15.90
17.90

63
56

16.40
18.40

61
54

151.0

96.0

10
9

150 L
H


6.00
6.00


165.1
165.1


4.8
5.4

6
5

18.90
21.30

53
47

19.50
21.90

51
46

178.0

96.0

8
7

TOLERANCE ON THICKNESS  AND MASS

a. Thickness Light Class Medium and Heavy Class
+ Not Limited + Not Limited
-8 Percent -10 Percent
b. Weight 1. Single Tube
+10 Percent +10 Percent
-10 Percent
-8 Percent
2. For Quantities per load of 10 Tonne Min.
+ 5 Percent
- 5 Percent
+ 7.5 Percent
- 7.5 Percent

Random Length :  4 to 5 mtr. unless otherwise specified includes one socket for screwed
and socketed tubes



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