Diameter		Nominal length mass		Minimum Breaking Force MAX
mm	inch	kg/m	lb/ft	kN	Tons (short)	Tonnes (metric)
12.0	-	.740	.498	153	17.2	15.6
-	1/2	.842	.566	171	19.2	17.4
13.0	-	.887	.596	179	20.1	18.3
14.0	-	1.04	.702	208	23.4	21.2
-	9/16	1.09	.733	216	24.3	22.0
15.0	-	1.21	.814	239	26.9	24.4
-	5/8	1.37	.919	272	30.6	27.7
16.0	-	1.37	.919	272	30.6	27.7
17.0	-	1.58	1.06	307	34.5	31.3
18.0	-	1.78	1.20	344	38.7	35.1
19.0	-	1.99	1.34	385	43.3	39.3
-	3/4	1.99	1.34	385	43.3	39.3
20.0	-	2.21	1.49	424	47.7	43.2
22.0	-	2.69	1.81	524	58.9	53.4
-	7/8	2.69	1.81	524	58.9	53.4
24.0	-	3.20	2.15	611	68.7	62.3
-	1	3.36	2.26	684	76.9	69.7
26.0	-	3.56	2.39	705	79.2	71.9
28.0	-	4.11	2.76	818	91.5	83.0
-	1 1/8	4.55	3.06	848	95.3	86.5
30.0	-	5.02	3.37	935	105	95.3
-	1 1/4	5.57	3.74	1085	122	111
32.0	-	5.57	3.74	1085	122	111
34.0	-	6.32	4.25	1180	133	120
-	1 3/8	6.79	4.56	1240	139	126
36.0	-	7.11	4.78	1320	148	135
38.0	-	7.95	5.34	1480	166	151
-	1 1/2	8.07	5.42	1480	166	151
40.0	-	8.82	5.93	1630	183	166
-	1 5/8	9.46	6.36	1730	194	176
42.0	-	9.72	6.53	1780	200	182
44.0	-	10.6	7.12	1930	217	197
-	1 3/4	10.8	7.29	1930	217	197
46.0	-	11.6	7.77	2120	238	216
-	1 7/8	12.4	8.30	2300	259	235
48.0	-	12.6	8.44	2300	259	235
50.0	-	13.6	9.17	2500	281	255
-	2	14.0	9.43	2560	288	261
52.0	-	14.9	10.0	2720	306	277