CHINA MAINLAND OFFICE

BS 1387-67 STEEL TUBES AND TUBULARS SUITABLE FOR SERCWING TO BS 21 PIPE TRHEADS
(BS1387 - 67 /BS1387-67)

1. Scope
Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for weldeng or for screwing to BS 21 PIPE threades.
applicable to tubes of nominal size DN 8 to DN 150 in light, medium and heavy thicknesses
2. Chemical composition
Grade
Mfg. Process
Chemical composition(%)
C
Si
Mn
P
S
Ni
Cr
Mo
Others
-
S,W
0.2
-
1.2
0.045Max
0.045Max
-
-
-
-
3. Mechanical Properties
Grade
Tensile Test MPa or N/mm2
Elongation (%)
Remaks
Possibility Temperature
Min Yield point
Tensile Strength
(Similar to JIS)
-
20(195)min
325~460
20min
(SGP)
4. Dimensions, Mass and Dimensional Tolerance
Nominal diameter
(LIGHT) (BSL)
Tolerances on outside diameter OD(mm)
Tolerances on wall thickness
BPE
Weight (kg/m)
DN
Standard
Tolerances
Tolerances-8%
Tolerances - 8%
Standard
minimum
Standard
minimum
15
21.2
0.2
2
1.84
0.947
0.88
20
26.65
0.25
2.3
2.12
1.38
1.27
25
33.5
0.3
2.6
2.4
1.98
1.83
32
42.2
0.3
2.6
2.4
2.54
2.34
40
48.1
0.3
2.9
2.67
3.23
2.98
50
59.9
0.3
2.9
2.67
4.08
3.76
65
75.6
0.4
3.2
2.95
5.71
5.26
80
88.3
0.4
3.2
2.95
6.72
6.19
100
113.45
0.4
3.6
3.32
9.75
8.97
125
0.4
150
0.4
Nominal diameter
(MEDIUM) (BSM)
Tolerances on outside diameter OD(mm)
Tolerances on wall thickness
BPE
Weight (kg/m)
DN
Standard
Tolerances
-10%
Tolerances -8% +10%
Standard
minimum
Standard
minimum
15
21.4
0.3
2.6
2.34
1.21
1.12
20
26.9
0.3
2.6
2.34
1.56
1.44
25
33.8
0.4
3.2
2.88
2.41
2.22
32
42.5
0.4
3.2
2.88
3.1
2.86
40
48.4
0.4
3.2
2.88
3.57
3.29
50
60.3
0.5
3.6
3.24
5.03
4.63
65
76
0.6
3.6
3.24
6.43
5.92
80
88.8
0.7
4
3.6
8.37
7.7
100
114.1
0.8
4.5
4.05
12.2
11.23
125
139.65
0.95
5
4.5
16.6
15.28
150
165.1
1.0
5
4.5
19.7
18.13
Nominal diameter
(HEAVY) (BSH)
Tolerances on outside diameter OD(mm)
Tolerances on wall thickness
BPE
Weight (kg/m)
DN
Standard
Tolerances
Tolerances -10%
Tolerances -8% +10%
Standard
minimum
Standard
minimum
15
21.4
0.3
3.2
2.88
1.44
1.33
20
26.9
0.3
3.2
2.88
1.87
1.73
25
33.8
0.4
4
3.6
2.94
2.71
32
42.5
0.4
4
3.6
3.8
3.5
40
48.4
0.4
4
3.6
4.38
4.03
50
60.3
0.5
4.5
4.05
6.19
5.7
65
76
0.6
4.5
4.05
7.93
7.3
80
88.8
0.7
5
4.5
10.3
9.48
100
114.1
0.8
5.4
4.86
14.5
13.35
125
139.65
0.95
5.4
4.86
17.9
16.47
150
165.1
1.0
5.4
4.86
21.3
19.6

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