 |
Standard: BS 1387-67 |
Chemical Composition
BS1387 Mfg. Process Chemical Composition (%) C Mn P S S,W 0.2 1.2 0.045Max 0.045Max
Mechanical Properties
|
BS1387 |
Yield point Min Mpa |
Tensile Strength Mpa |
Elongation (%) |
|
≥195 |
325~460 |
≥20 |
Dimensions, Mass and Dimensional Tolerance
|
Nominal diameter |
(LIGHT) (BSL) |
|||||
|
Tolerance on OD (mm) |
Tolerance on WT |
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) |
|||||
|
Tolerance on OD(mm) |
Tolerances on WT |
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) |
|||||
|
Tolerance on OD(mm) |
Tolerances on WT |
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 |