1.5 × Nominal diameter for diameter D16 mm or under
Equivalent to No.3
18min.
2.0 × Nominal diameter for diameter over D16
SD350
350 min.
490 min.
Equivalent to No.2
18min.
180°
1.5 × Nominal diameter for diameter D16 mm or under
2.0 × Nominal diameter for diameter over D16 up to and incl. D41
SD400
400 min.
560 min.
Equivalent to No.2
16min.
180°
2.5 × Nominal diameter
Equivalent to No.3
18min.
Dimension,mass and allowable limits of knots
Designation
Unit mass
kg/m
Nominal diameter
(d)
mm
Nominal section area
(s)
cm2
Nominal peripheral length
(I)
cm
Maximum value mm of average interval between knots
mm
Height of knot
Maximum value of sum of clearance between knots
mm
Angle between knot and axial line
Minimum value
mm
Maximum value
mm
D10
0.560
9.53
0.7133
3.0
6.7
0.4
0.8
7.5
45°min.
D13
0.995
12.7
1.267
4.0
8.9
0.5
1.0
10.0
45°min.
D16
1.56
15.9
1.986
5.0
11.1
0.7
1.4
12.5
45°min.
Tolerances on length
Length
Tolerance
7m or under
+40mm
0
over 7m
For each increase of 1m in length or its fraction,further 5mm shall be added to the tolerances on the plus side given above.The maximum value , however , shall be limited to 120mm.
