Dimensions for DIN 766 Round steel link chains

d		Pitch			Width		Gauge of length of 11x t			mass
		t			inside b1	outside b2				kg/m
size	Per. Dev.		Permissible deviations		minimum	maximum		Permissible deviations		approx.
4	±0.2	16	+0.3	-0.2	4.8	13.6	176	+0.8	-0.4	0.32
5	±0.2	18.5	+0.4	-0.2	6	17	203.5	+0.9	-0.5	0.5
6	±0.2	18.5	+0.4	-0.2	7.2	20.4	203.5	+0.9	-0.5	0.8
7	±0.3	22	+0.4	-0.2	8.4	23.8	242	+1.1	-0.5	1.1
8	±0.3	24	+0.4	-0.2	9.6	27.2	264	+1.2	-0.6	1.4
9	±0.4	27	+0.5	-0.3	10.8	30.6	297	+1.3	-0.7	1.8
10	±0.4	28	+0.5	-0.3	12	36	308	+1.4	-0.7	2.3
11	±0.4	31	+0.5	-0.3	13.2	40	341	+1.5	-0.8	2.7
13	±0.5	36	+0.6	-0.3	15.6	47	396	+1.7	-0.9	3.9
14	±0.5	41	+0.7	-0.4	16.8	50	451	+2	-1	4.4
16	±0.6	45	+0.8	-0.4	19.2	58	495	+2.2	-1.1	5.8
18	±0.9	50	+0.8	-0.4	21.6	65	550	+2.5	-1.2	7.4
20	±1	56	+1	-0.5	24	72	616	+2.8	-1.4	9
23	±1.2	64	+1.1	-0.5	27.6	83	704	+3.2	-1.6	12
26	±1.3	73	+1.2	-0.6	31.2	94	803	+3.6	-1.8	15
28	±1.4	78	+1.3	-0.6	33.6	101	858	+3.8	-2	18
30	±1.5	84	+1.4	-0.7	36	108	924	+4.2	-2.1	20
32	±1.6	90	+1.5	-0.7	38.4	115	990	+4.5	-2.2	23
36	±1.8	101	+1.7	-0.8	43.2	130	1111	+5	-2.5	29
40	±2	112	+1.9	-0.8	48	144	1232	+5.6	-2.8	35
42	±2.1	118	+2	-1	50	151	1298	+5.8	-3	40

Size	Load-bearing capacity	Minimum manufacturing test force	Minimum breaking force	Minimum deflection
d	kg	kN	kN	f
4	200	5	8	3
5	320	8	12.5	4
6	400	10	16	5
7	630	16	25	6
8	800	20	32	7
9	1000	25	40	7
10	1250	32	50	8
11	1600	40	63	9
13	2000	50	80	11
14	2500	63	100	12
16	3200	80	125	13
18	4000	100	160	15
20	5000	125	200	16
23	6300	160	250	19
26	8000	200	320	22
28	10000	250	400	23
30	11200	280	450	24
32	12500	320	500	26
36	16000	400	630	29
40	20000	500	800	32
42	22400	560	900	34

Mean stress at working load limit	N/mm2	80
Stress at manufacturing test force	N/mm2	200
Stress at a specified breakign force	N/mm2	320
ation of mean stress at working load limit to stress at manuifacturing test force to stress at a specified breaking force		1:2,5:4
Minimum total ultimate elongation	%	15 min.
Deflection	mm	approx. 0.8 d

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