Pitch	Roller diameter	Width between inner plates	Pin diameter	Pin length		Inner Plate depth	Piate thickness	Aver age tensile strength	Ultimate tensile strength	Weight per meter
Chain No.	P	d1 max	b1 min	d2 max	L max	L c max	h2 max	T max	Q min	Q0	q
	mm	mm	mm	mm	mm	mm	mm	mm	kn	kn	kg/m
25H	6.35	3.3	3.18	2.31	8.9	9.5	6	1.04	4.8	5.5	0.17
219H	7.774	4.59	5	3.01	11.9	12.7	7.4	1.2/1.04	6.6	7.4	0.28
270H	8.5	5	4.75	3.28	13.15		8.45	1.8/1.4	9.8	11	0.33
T3F	9.525	6	9.5	4.5	18.6		9.3	1.85/1.50	11.8	14.1	0.61
420	12.7	7.77	6.25	3.96	14.7	16.1	12	1.5	16	18.1	0.55
428	12.7	8.51	7.75	4.45	16.7	18.2	11.8	1.6	18	20.1	0.7
428H	12.7	8.51	7.85	4.45	18.8	19.9	11.8	2.03	20.6	23.4	0.79
428DS	12.7	8.51	7.94	4.45	17.9	19.3	12	1.85	18.62	21	0.76
520	15.875	10.16	6.25	5.08	17.5	19	15.09	2.03	26.5	29.7	0.89
520H	15.875	10.16	6.25	5.08	19.3	20.8	15.09	2.42	26.5	31.5	1.1
530	15.875	10.16	9.4	5.08	20.7	22.2	15.09	2.03	26.5	29.7	1.06