BS 1387 : 1985 MEDIUM BLACK & GALVANIZED STEEL PIPE

CHEMICAL COMPOSITION

 MECHANICAL PROPERTIES HYDROSTATIC TEST(BAR) PIPE THREADS
C MAX % Mn MAX % P MAX % S MAX % TENSILE STRENGTH YIELD STRENGTH ELONGATION %
0.20 1.20 0.045 0.045 320-460 N/mm2 195 N/mm2 20 50 55°

 

Nominal size (DN) Outside Diameter Wall Thickness Calculated  Weight Threads Per 25.4 mm. Number of piece per Bundle
(Max) (Min) Plain Ends Threads & Coupling
in in mm. in mm. mm. lb/ft kg/ft kg/m lb/ft kg/ft kg/m
3/8  (10) 0.685 17.4 0.660 16.8 2.3 0.563 0.256 0.839 0.567 0.258 0.846 19 169
1/2  (15) 0.856 21.7 0.831 21.1 2.6 0.811 0.369 1.21 0.818 0.372 1.22 14 169
3/4  (20) 1.072 27.2 1.047 26.6 2.6 1.046 0.475 1.56 1.053 0.479 1.57 14 127
1    (25) 1.346 34.2 1.316 33.4 3.2 1.616 0.735 2.41 1.629 0.741 2.43 11 91
11/4  (32) 1.687 42.9 1.657 42.1 3.2 2.079 0.945 3.10 2.099 0.954 3.13 11 61
11/2  (40) 1.919 48.8 1.889 48.0 3.2 2.394 1.088 3.57 2.421 1.100 3.61 11 44
2    (50) 2.394 60.8 2.354 59.8 3.6 3.373 1.533 5.03 3.420 1.554 5.10 11 37
21/2 (65) 3.014 76.6 2.969 75.4 3.6 4.312 1.960 6.43 4.392 1.996 6.55 11 24
3    (80) 3.524 89.5 3.469 88.1 4.0 5.613 2.551 8.37 5.727 2.603 8.54 11 19
4  (100) 4.524 114.9 4.459 113.3 4.5 8.181 3.719 12.2 8.382 3.810 12.5 11 14
5  (125) 5.534 140.6 5.459 138.7 5.0 11.131 5.060 16.6 11.467 5.212 17.1 11 7
6  (150) 6.539 166.1 6.459 164.1 5.0 13.210 6.005 19.7 13.612 6.187 20.3 11 7
DIMENSION TOLERANCE
WELL THICKNESS  : - 10% + NOT LIMIT
WEIGHT  :  ± 4% PER BUNDLE (OVER 500 ft)
 : + 10%, - 8% PER PIECE
LENGTH  :+ 50 mm. , - 0 mm.
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