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|
BS31-1940
|
|
Nominal Dia.(in)
|
Outside Diameter(mm)
|
Wall Thickness
|
Nominal Weight Screwed Without Coupler
|
|
Min
|
Std
|
Max
|
Nominal
|
Minmum
|
|
mm
|
mm
|
Kg/m
|
|
1/2
|
12.43
|
12.70
|
12.73
|
1.42
|
1.32
|
0.40
|
|
3/4
|
18.76
|
15.05
|
19.08
|
1.63
|
1.52
|
0.69
|
|
1
|
25.11
|
25.40
|
25.43
|
1.63
|
1.52
|
0.95
|
|
1-1/4
|
31.46
|
31.75
|
31.78
|
1.63
|
1.52
|
1.21
|
|
1-1/2
|
37.80
|
38.10
|
38.13
|
1.83
|
1.73
|
1.64
|
|
2
|
50.50
|
50.80
|
50.83
|
2.03
|
1.93
|
2.44
|
|
2-1/2
|
63.20
|
63.50
|
63.53
|
2.03
|
1.93
|
3.03
|
|
|
BS4568-1970
|
|
Size(mm)
|
Nominal Diameter（mm）
|
Weight（g/m）
|
|
Outside Diameter(mm)
|
Wall thickness(mm)
|
Length of thread(mm)
|
Class1、2、3
|
Class4
|
|
Min
|
Max
|
Min
|
Max
|
Min
|
Max
|
Min
|
Max
|
|
16
|
15.7
|
16.0
|
1.0±0.10
|
|
|
324
|
405
|
355
|
470
|
|
1.4±0.10
|
11.5
|
13.5
|
452
|
531
|
483
|
594
|
|
20
|
19.7
|
20.0
|
1.0±0.10
|
|
|
416
|
515
|
457
|
597
|
|
1.6±0.15
|
13.0
|
15.0
|
643
|
783
|
682
|
862
|
|
25
|
24.6
|
25.0
|
1.2±0.15
|
|
|
598
|
784
|
649
|
887
|
|
1.6±0.15
|
16.0
|
18.0
|
811
|
995
|
860
|
1095
|
|
32
|
31.6
|
32.0
|
1.2±0.15
|
|
|
796
|
1006
|
861
|
1139
|
|
1.8±0.15
|
18.0
|
20.0
|
1069
|
1301
|
1133
|
1432
|
|
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