Persian
 

Nominal Size
Outside Diameter
Tolerance of outside Diameter Facing with Bonshen
Thickness Two head simple
Tolerance of Thickness
Weight
mm
Inch
mm
kg/m
8
1/4
13.8
±0.5mm
2.3mm
-12.5%
0.652
10
3/8
17.3
±0.5mm
2.3mm
0.851
15
1/2
21.7
±0.5mm
2.8mm
1.31
20
3/4
27.2
±0.5mm
2.8mm
1.68
25
1
34.0
±0.5mm
3.2mm
2.43
32
1.1/4
42.7
±0.5mm
3.5mm
3.38
40
1.1/2
48.6
±0.5mm
3.5mm
3.89
50
2
60.5
±0.5mm ±1%
3.8mm
5.31
65
2.1/2
76.3
±0.7mm ±1%
4.2mm
7.47
80
3
89.1
±0.8mm ±1%
4.2mm
8.79
100
4
114.3
±0.8mm ±1%
4.5mm
12.20
 
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