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Reference > Typical Rigging Breaking Strengths^ง

Type 302 1 x 19* Stainless Wire Rope

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	in	Ib	kg
1/16	500	227	9/32	10300	4671
3/32	1200	544	5/16	12500	5669
1/8	2100	952	3/8	17500	7936
5/32	3300	1497	7/16	23400	10612
3/16	4700	2131	1/2	29700	13469
7/32	6300	2857	9/16	36500	16553
1/4	8200	3719	5/8	44000	19954

Type 302 7 x 19* Stainless Wire Rope

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	in	Ib	kg
1/16	500	225	1/4	6400	2900
3/32	920	475	9/32	7800	3530
1/8	1760	790	5/16	9000	4080
5/32	2400	1080	3/8	12000	5440
3/16	3700	1670	7/16	16300	7390
7/32	5000	2260	1/2	22800	10340

Type 316 1 x 19 Dyform Stainless Wire Rigging

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	mm	Ib	kg
3/16	4928	2235	5	5380	2440
1/4	8844	4011	6	7828	3550
9/32	10802	4899	7	10827	4910
5/16	13530	6136	8	13561	6150
3/8	19272	8740	10	21544	9770
7/16	26620	12072	11	26620	12072
1/2	34833	15797	14	42460	19256
9/16	42460	19256	16	56320	25541
5/8	56320	25541	19	70400	31926
3/4	70400	31926	—	—	—

Nitronic 50 (22-13-5) Stainless Rod Rigging

Size	Breaking Strength		Size	Breaking Strength
	Ib	kg	mm	Ib	kg
-4	4700	2136	3.5	3202	1452
-6	6300	2864	4	4101	1860
-8	8200	3727	4.5 (-4)	5006	2270
-10	10300	4682	5 (-6)	5998	2720
-12	12500	5682	5.5	7100	3220
-17	17500	7955	6 (-8)	8600	3900
-22	22500	10227	6.5 (-10)	9923	4500
-30	30000	13636	7 (-12)	11797	5350
-40	38000	17273	7.5	14112	6400
-48	46000	20909	8	16207	7350
-60	59000	26818	8.5 (-17)	17641	8000
-76	76000	34545	9	19846	9000
-91	90000	40909	9.5 (-22)	21499	9750
-115	117000	53182	11.1 (-30)	29989	13600
—	—	—	12.7 (-40)	35943	16300
—	—	—	14.3 (-48)	46086	20900
—	—	—	16.75 (-60)	59096	26800
—	—	—	18.03 (-66)	65050	29500
—	—	—	20.6	74972	34000
—	—	—	22.73 (-90)	89966	40800

Type 316 1 x 7 Dyform Stainless Wire Rigging

Size	Breaking Strength		Size	Breaking Strength
mm	Ib	kg	mm	Ib	kg
2.5	1518	690	3.5	2975	1350
3	2200	1000	4	3925	1780

Type 316 1 x 19** Stainless Wire Rope

Size	Breaking Strength		Size	Breaking Strength
mm	Ib	kg	mm	Ib	kg
2	706	320	9	12944	5870
2.5	1103	500	9.53	14509	6580
3	1588	720	10	15987	7250
4	2822	1280	11	19338	8770
4.76	3969	1800	12	22933	10400
5	4410	2000	12.7	25689	11650
5.56	5447	2470	14	31268	14180
6	6351	2880	16	40926	18560
6.35	7100	3220	19	47674	21620
7	7828	3550	22	64101	29070
8	10232	4640	26	89526	40600

Type 316 1 x 19* Stainless Wire Rope

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	in	Ib	kg
3/16	3960	1800	3/8	14500	6580
7/32	5445	2470	1/2	25680	11650
1/4	7090	3220	—	—	—

Type 316 7 x 19** Stainless Wire Rope

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	mm	Ib	kg
3/16	2830	1285	3	1120	510
7/32	3865	1750	4	2130	970
1/4	5040	2280	5	3130	1420
3/8	11350	5150	6(-8)	4490	2040
1/2	20165	9140	7(-12)	6120	2780
—	—	—	8	8000	3630
—	—	—	10	12500	5670
—	—	—	12	17990	8160
—	—	—	14	24470	11100
—	—	—	16	29980	13600

Dacron^ฎ Double Braid Rope

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	mm	Ib	kg
1/4	1800	815	6	2360	1070
5/16	2800	1270	8	4012	1820
3/8	3750	1700	9	4960	2250
7/16	5500	2490	10	7030	3190
1/2	7000	3175	12	9520	4320
9/16	10000	4535	14	13160	5970
5/8	14000	6350	16	17285	7840
3/4	16000	7250	18.03	19930	9040
7/8	25000	11340	20.6	22460	10190

100% Spectra^ฎ Core Rope w/Dacron^ฎ Cover

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	mm	Ib	kg
3/16	1600	726	2	360	163
1/4	4300	1950	3	540	244
5/16	7400	3355	4	1300	590
3/8	9500	4300	5	2180	989
7/16	11500	5210	6	3300	1500
1/2	16000	7250	8	6590	2990
9/16	22000	9980	10	9130	4140
5/8	27000	12250	12	11860	5380
3/4	37000	16780	14	16000	7250
7/8	50000	22680	22	38000	17235
1	60000	27215	—	—	—

Technora^ฎ Core Rope w/Dacron^ฎ Cover^ง

Size	Breaking Strength		Size	Breaking Strength
in	Ib	kg	mm	Ib	kg
3/32	850	385	2	850	385
1/8	1650	748	3	1650	748
5/32	2400	1088	4	2400	1088
3/16	3100	1406	5	3100	1406
1/4	5150	2335	6	5150	2335
5/16	7800	3537	8	7800	3537
3/8	10750	4875	9	10750	4875
7/16	14000	6350	10	14000	6350
1/2	20400	9251	12	20400	9251
9/16	22000	9977	14	22000	9977
5/8	35000	15873	16	35000	15873

High Modulus Kevlar^ฎ Cable^ง

Cover	Breaking Strength		Cover	Breaking Strength
mm	Ib	kg	mm	Ib	kg
5.7	2205	1000	13.3	19850	9000
6.6	3310	1500	15.5	26450	12000
7.5	5070	2300	16.8	33070	15000
8.6	6615	3000	19.5	44095	20000
10.3	11025	5000	22	55115	25000
12.5	15430	7000	25.2	68350	31000

* - Typical American wire
** - Typical European wire
ง - Breaking strength may vary widely by manufacturer

Harken Deck Specs | Traveler | Mainsheet | Genoa Lead Car | Boom Vangs | Outhauls Systems | Cunninghams | Spinnaker | Spinnaker Pole Handling | Mastbase & Cabin Top | Backstay Adjusters | Mainsail Reefing | Self-Tracking Jibs /Staysails | Metric Conversions /Drilling Guide | Rigging Breaking Strengths | Loading Formulas | Ball Bearings | Maintenance