BS 1387 : 1985 LIGHT BLACK & GALVANIZED STEEL PIPE

CHEMICAL COMPOSITION

MECHANICAL PROPERTIES

 HYDROSTATIC TEST(BAR) PIPE THREADS
C Mn P S TENSILE STRENGTH YIELD STRENGTH ELONGATION
MAX % MAX % MAX % MAX % %
0.20 1.20 0.045 0.045 320-460 N/mm2 195 N/mm2 20 50 55°
LENGTH                :  + 50 mm. , - 0 mm.

 

Nominal size Outside Diameter Wall Thickness Calculated  Weight Threads  Per      25.4 mm. Number of Pieces Per Bundle
(DN) (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) 0.671 17.1 0.656 16.7 1.8 0.453 0.205 0.670 0.457 0.207 0.676 19 169
1/2  (15) 0.841 21.4 0.825 21.0 2.0 0.640 0.290 0.947 0.646 0.293 0.956 14 169
3/4  (20) 1.059 26.9 1.041 26.4 2.3 0.944 0.428 1.38 0.954 0.433 1.39 14 127
1    (25) 1.328 33.8 1.309 33.2 2.6 1.350 0.612 1.98 1.360 0.617 2.00 11 91
11/4  (32) 1.670 42.5 1.650 41.9 2.6 1.730 0.785 2.54 1.750 0.794 2.57 11 61
11/2  (40) 1.903 48.4 1.882 47.8 2.9 2.190 0.993 3.23 2.220 1.010 3.27 11 44
2    (50) 2.370 60.2 2.347 59.6 2.9 2.760 1.250 4.08 2.810 1.270 4.15 11 37
21/2 (65) 2.991 76.0 2.960 75.2 3.2 3.900 1.770 5.71 3.980 1.810 5.83 11 24
3    (80) 3.491 88.7 3.460 87.9 3.2 4.580 2.080 6.72 4.690 2.130 6.89 11 19
4  (100) 4.481 113.9 4.450 113.0 3.6 6.640 3.010 9.75 6.840 3.100 10.00 11 14
DIMENSION TOLERANCE
WELL THICKNESS  :  - 8% + NOT LIMIT
WEIGHT                :  ± 4% PER BUNDLE (OVER 500 ft)
               :  + 10%, - 8% PER PIECE
LENGTH                :  + 50 mm. , - 0 mm.
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