Chain Size		Dimensions (in)				Test Requirements
3-1/14	83	19-1/2	11-11/16	71-1/2	9010	393000	562000	562000	787000	787000	1124000	804100	1210000
in	mm	link length A (in)	link length B (in)	length of C (in)	Weight Per 90' (ibs)	GRADE1		GRADE2		GRADE3		Qil Rig Quantity
						Proof Load (Ibs)	(Ibs)	Proof Load (Ibs)	(Ibs)	Proof Load (Ibs)	(Ibs)	Proof Load (Ibs)	(Ibs)
5/8	16	3-3/4	2-1/4	13-3/4	365	16620	23745	23745	33220	33200	47465
3/4	19	4-1/2	2-5/8	16-1/2	480	23800	34000	34000	47600	47600	68000
13/16	20	4-7/8	2-7/8	17-7/8	570	27800	39800	398000	55700	55700	79500
7/8	22	5-1/4	3-1/8	19-1/4	660	32200	46000	46000	64400	64400	91800
15/16	24	5-5/8	3-5/16	20-5/8	760	36800	52600	52600	73700	73700	105000
1	25	6	3-9/16	22	860	41800	59700	59700	83600	83600	119500	84000	129000
1-1/8	28	6-3/4	4	24-3/4	1080	52600	75000	75000	105000	105000	150000	106000	161000
1-3/16	30	7-1/8	4-1/4	26-1/8	1220	58400	83400	83400	116500	116500	167000
1-1/4	32	7-1/2	4-1/2	27-1/2	1350	64500	92200	92200	129000	129000	184000	130000	198000
1-3/8	34	8-1/4	4 15/16	30-1/4	1630	77500	111000	111000	155000	155000	222000	157000	235000
1-7/16	36	8-5/8	5-3/16	31-5/8	1780	84500	120500	120500	169000	169000	241000
1 1/2	38	9	5-3/8	33	1940	91700	131000	131000	183500	183500	262000	185000	280000
1-9/16	40	9-3/8	5-5/8	34-3/8	2090	99200	142000	142000	198500	198500	284000
1-5/8	42	9-3/4	5-7/8	35-3/4	2240	108000	153000	153000	214000	214000	306000	216000	325000
1-3/4	44	10-1/2	6-5/16	38-1/2	2590	123500	176000	176000	247000	247000	352000	249000	380000
1-13/16	46	10-7/8	6-1/2	39-7/8	2790	132000	188500	188500	264000	264000	377000
1-7/8	48	11-1/4	6-3/4	41-1/4	2980	140500	201000	201000	281000	281000	402000	285000	432000
2	50	12	7-3/16	44	3180	149500	214000	214000	299000	299000	427000
2-1/16	52	12-3/8	7-7/16	45-3/8	3570	168500	241000	241000	337000	337000	482000	342000	518000
2-1/8	54	12-3/4	7-5/8	46-3/4	3790	178500	255000	255000	357000	357000	510000	362000	548000
2-3/16	56	13-1/8	7-7/8	48-1/8	4020	188500	269000	269000	377000	377000	538000	382500	579100
2-1/4	58	13-1/2	8-1/8	49-1/2	4250	198500	284000	284000	396000	396000	570000	403000	610000
2-3/8	60	14-1/4	8-9/16	52-1/4	4730	212000	314000	314000	440000	440000	628000	447000	675000
2-7/16	62	14-5/8	8-3/4	53-5/8	4960	231000	330000	330000	462000	462000	660000	469500	709500
2-1/2	64	15	9	55	5270	242000	346000	346000	484000	484000	692000	492000	744000
2-9/16	66	15-3/8	9-1/4	56-3/8	5540	254000	363000	363000	207000	507000	726000	516000	778500
2-5/8	67	15-3/4	9-7/16	57-3/4	5820	265000	379000	379000	530000	530000	758000	540000	813000
2-11/16	68	16-1/8	9-11/16	59-1/8	6110	277000	396000	396000	554000	554000	792000	565000	849000
2-3/4	70	16-1/2	9-7/8	60-1/2	6410	289000	413000	413000	578000	578000	826000	590000	885000
2-7/8	73	17-1/4	10-3/8	6 3-1/4	7020	314000	449000	449000	628000	628000	897000	640000	965000
3	76	18	10-13/16	66	7650	340000	485000	485000	679000	679000	970000	693000	1045000
3-1/16	78	18-3/8	11	67 3/8	7980	353000	504000	504000	705000	705000	1008000	720500	1086500
3-3/16	81	19-1/8	11-1/2	70-1/8	8660	380000	542000	542000	759000	759000	1084000	776050	1169000