We Ship Worldwide! Shipping information.
SELECTION GUIDE

Breaking loads, metallic cross-sectional areas and weights of Ronstan Grade 316 stainless steel wire in 1 x 19, 7 x 19 and 7 x 7 construction, with the elastic stretch formula, to compare wire sizes before you specify standing or running rigging.

DocumentRonstan Wire Load Comparison Table
FormatPDF · 1 page · 0.2 MB
LanguageEnglish
Download PDFView Collection
Constructions1 x 197 x 197 x 7Notes & StretchProducts
Ronstan Wire Load Comparison Table

Which Construction

Construction Character Typical uses
1 x 19 (19 single strands) Strongest, lowest stretch, least flexible Standing rigging, life lines
7 x 19 (7 strands of 19 wires) Most flexible Halyards, steering, running rigging, vang cascades
7 x 7 (7 strands of 7 wires) Semi-flexible; PVC coating optional Soft luff dinghy forestay (coilable), removable dinghy stays (coilable)

1 x 19 Grade 316 Stainless Steel (Tensile Strength Grade 1570 N/mm2)

Product No. Wire Ø mm A mm² B.L. kg Weight per metre kg A in² B.L. lb Weight per 100ft lb
WR6119-1.5M 1.5 1.3 180 0.012 0.002 397 0.77
WR6119-02M 2.0 2.4 330 0.020 0.004 728 1.37
WR6119-2.5M 2.5 3.7 530 0.032 0.006 1168 2.14
WR6119-03M 3.0 5.4 760 0.046 0.008 1675 3.09
WR6119-04M 4.0 9.6 1350 0.082 0.015 2975 5.49
WR6119-05M 5.0 14.9 2100 0.128 0.023 4630 8.61
WR6119-06M 6.0 21.5 3020 0.184 0.033 6657 12.37
WR6119-07M 7.0 29.2 4130 0.250 0.045 9105 16.81
WR6119-08M 8.0 38.2 5380 0.320 0.059 11860 21.92
WR6119-10M 10.0 59.7 8420 0.510 0.093 18562 34.29
WR6119-12M 12.0 86.0 12130 0.734 0.133 26742 49.35
WR6119-14M 14.0 117.0 16510 1.000 0.181 36398 67.24
WR6119-16M 16.0 152.8 21510 1.310 0.237 47421 88.09

Larger diameters available on request.

7 x 19 Grade 316 Stainless Steel

Product No. Wire Ø mm A mm² B.L. kg Weight per metre kg A in² B.L. lb Weight per 100ft lb
WR6719-1.5M 1.5 1.0 150 0.009 0.002 331 0.62
WR6719-02M 2.0 1.9 250 0.016 0.003 551 1.10
WR6719-2.5M 2.5 2.9 380 0.026 0.004 838 1.72
WR6719-03M 3.0 4.2 540 0.037 0.007 1191 2.47
WR6719-04M 4.0 7.4 960 0.066 0.011 2117 4.40
WR6719-05M 5.0 11.6 1480 0.103 0.018 3263 6.90
WR6719-06M 6.0 16.7 2150 0.148 0.026 4740 9.92
WR6719-07M 7.0 22.8 2920 0.201 0.035 6439 13.47
WR6719-08M 8.0 29.7 3810 0.262 0.046 8401 17.55
WR6719-10M 10.0 46.4 5960 0.410 0.072 13140 27.47
WR6719-12M 12.0 66.9 8600 0.590 0.104 18960 39.53
WR6719-14M 14.0 91.0 11690 0.804 0.141 25772 53.87
WR6719-16M 16.0 118.9 14450 1.050 0.184 31857 70.35

7 x 7 Grade 316 Stainless Steel

Product No. Wire Ø mm A mm² B.L. kg Weight per metre kg A in² B.L. lb Weight per 100ft lb
WR677-03M 3.0 4.2 580 0.037 0.007 1279 2.35
WR677-04M 4.0 7.5 1040 0.066 0.012 2293 4.23
WR677-03MP 3.0 (PVC coated) 4.2 580 0.055 0.007 1279 4.84

WR677-03MP: wire diameter excludes the PVC coating; Ø including PVC = 5.0mm.

Reading the Table

  • All sizes on 305 m (1000 ft) reels.
  • B.L. = cable breaking load. It does not include the typical 10% reduction in cable strength due to swaging.
  • Ratings are for standard Ronstan mill-ordered, stocked wire; wire is sometimes sourced from other suppliers and ratings may vary.

Stretch in Wire

  • All wire stretches: first permanently, as the wires bed down when load is first applied, then elastically as load increases. Where stretch is critical, initial stretch can be taken out with cables pre-stressed during swaging and cable manufacture.
  • Elastic stretch (mm) = (W x L) / (E x A), where W = applied load (kN), L = cable length (mm), E = strand modulus (kN/mm2), A = metallic cross sectional area (mm2) from the tables.
  • Typical E: 1 x 19 = 127±10 kN/mm2 (18.4 x 106 P.S.I.); 7 x 19 = 97±10 kN/mm2 (14.1 x 106 P.S.I.); 7 x 7 = 106±10 kN/mm2 (15.4 x 106 P.S.I.).

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

Products in this Selection Guide