2020 Ronstan Sailboat Hardware Catalogue - Page 234



STAINLESS STEEL HARDWARE
232
Stainless Steel Wire
1 X 19
7 X 19
7X7
19 single strands
7 strands of 19 wires
7 strands of 7 wires
CONSTRUCTION
CONSTRUCTION
CONSTRUCTION
Strongest
Most flexible
Semi-flexible
Lowest stretch
Halyards
PVC coated (optional)
Least flexible
Steering
Soft luff dinghy forestay (coilable)
Standing rigging
Running rigging
Removable dinghy stays (coilable)
Life lines
Vang cascades
STRETCH IN WIRE
Stretch is a characteristic of all wire, initially as
permanent stretch when the load is first applied
and the individual wires bed down, and then as
conventional elastic stretch within the wires as load
increases. Where stretch is critical to the application,
initial stretch can be accounted for with cables
stretched (pre-stressed) during swaging
and cable manufacturing. Elastic stretch can
be estimated by the following formula:
WxL
ExA
where:
W = Applied load (kN)
L = Cable length (mm)
2
E = Strand modulus (kN/mm )
A = Metallic Cross Sectional Area (mm2) as
indicated in the tables below
Elastic stretch (mm) =
Typical values for E are:
1 x 19
127 kN/mm2 (18.42 x 106 P.S.I.)
7 x 19
97.1 kN/mm2 (14.08 x 106 P.S.I.)
7x7
106 kN/mm2 (15.37 x 106 P.S.I.)
B.L.*3
kg
WEIGHT PER METRE
kg
A
in2
REEL LENGTH
ft
B.L.*3
lb
WEIGHT PER 100ft
lb
1 x 19 Grade 316 Stainless Steel (Tensile Strength Grade 1570 N/mm2)*1
WR6119-1.5M
1.5
1.3
305
WR6119-02M
2.0
2.3
305
WR6119-2.5M
2.5
3.7
305
WR6119-03M
3.0
5.4
305
WR6119-04M
4.0
9.6
305
WR6119-05M
5.0
15.0
305
WR6119-06M
6.0
21.5
305
WR6119-07M
7.0
29.2
305
WR6119-08M
8.0
38.2
305
WR6119-10M
10.0
59.7
305
WR6119-12M
12.0
86.0
305
WR6119-14M
14.0
117.0
305
WR6119-16M
16.0
153.0
305
180
330
530
760
1350
2100
3020
4130
5380
8420
12130
16510
21510
0.012
0.020
0.032
0.046
0.082
0.128
0.184
0.250
0.320
0.510
0.734
1.000
1.310
0.002
0.004
0.006
0.008
0.015
0.023
0.033
0.045
0.059
0.093
0.133
0.181
0.237
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
397
728
1168
1675
2975
4630
6657
9105
11860
18562
26742
36398
47421
0.77
1.37
2.14
3.09
5.49
8.61
12.37
16.81
21.92
34.29
49.35
67.24
88.09
7 x 19 Grade 316 Stainless Steel
WR6719-1.5M
1.5
WR6719-02M
2.0
WR6719-2.5M
2.5
WR6719-03M
3.0
WR6719-04M
4.0
WR6719-05M
5.0
WR6719-06M
6.0
WR6719-07M
7.0
WR6719-08M
8.0
WR6719-10M
10.0
WR6719-12M
12.0
WR6719-14M
14.0
WR6719-16M
16.0
1.2
2.0
3.2
4.6
8.2
12.9
18.5
25.1
32.8
51.3
73.8
100.5
131.3
305
305
305
305
305
305
305
305
305
305
305
305
305
150
250
380
540
960
1480
2150
2920
3810
5960
8600
11690
14450
0.009
0.016
0.026
0.037
0.066
0.103
0.148
0.201
0.262
0.410
0.590
0.804
1.050
0.002
0.003
0.005
0.007
0.013
0.020
0.029
0.039
0.051
0.080
0.114
0.156
0.204
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
331
551
838
1191
2117
3263
4740
6439
8401
13140
18960
25772
31857
0.62
1.10
1.72
2.47
4.40
6.90
9.92
13.47
17.55
27.47
39.53
53.87
70.35
7 x 7 Grade 316 Stainless Steel
WR677-03M
3.0
WR677-04M
4.0
3.0
WR677-03MP*2
4.2
7.5
4.2
305
305
305
580
1040
580
0.037
0.066
0.055
0.007
0.012
0.007
1000
1000
1000
1279
2293
1279
2.35
4.23
4.84
PRODUCT No.
WIRE DIAM.
mm
A
mm2
REEL LENGTH
m
*1 Larger diameters available on request.
*2 Wire diameter excludes PVC Coating, Ø including PVC = 5.0mm
*3 Cable Breaking Load: does not include the typical 10% reduction in cable strength due to swaging. B.L. ratings are for standard Ronstan mill ordered, and stocked wire. From time to time wire may be sourced from other suppliers and ratings may vary.

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