NACM90 standard link chain

NACM90 standard link chain is one kind of USA standard link chain.It includes proof coil chain NACM90(G30),high test chain NACM90(G43) and transport chain NACM90(G70).

1. Proof coil chain NACM90(G30)

Nominal Size		Material Diameter		Working Load Limit		Proof Test (Min)		Breaking Force (Min)		Inside Lenght		Inside Width
mm	in	mm	in	kg	lb	kn	lb	kn	lb	mm	in	mm	in
4.0	1/8	4.0	0.156	170	375	3.6	800	7.1	1600	23.9	0.94	6.4	0.25
5.5	3/16	5.5	0.217	365	800	7.2	1600	14.3	3200	24.8	0.98	7.7	0.30
7.0	1/4	7.0	0.276	580	1300	11.6	2600	23.1	5200	31.5	1.24	9.8	0.38
8.0	5/16	8.0	0.315	860	1900	15.1	3400	30.2	6800	32.8	1.29	11.2	0.44
10.0	3/8	10.0	0.394	1200	2650	23.6	5300	47.1	10600	35.0	1.38	14.0	0.55
13.0	1/2	13.0	0.512	2030	4500	39.8	8950	79.6	17900	45.5	1.79	18.2	0.72
16.0	5/8	16.0	0.630	3130	6900	60.3	13600	120.6	27200	56.0	2.20	20.0	0.79
20.0	3/4	20.0	0.787	4800	10600	94.3	21200	188.5	42400	70.0	2.76	25.0	0.98
22.0	7/8	22.0	0.866	5810	12800	114.1	25600	228.1	51200	77.0	3.03	27.5	1.08
25.0	1"	26.0	1.020	8140	17900	159.1	35800	318.2	71600	90.9	3.58	31.7	1.25

2. high test chain NACM90(G43)　

Nominal Size		Material Diameter		Working Load Limit		Proof Test (Min)		Breaking Force (Min)		Inside Lenght		Inside Width
mm	in	mm	in	kg	lb	kn	lb	kn	lb	mm	in	mm	in
7.0	1/4	7.0	0.276	1180	2600	16.6	3750	33.1	7500	31.5	1.24	9.8	0.38
8.0	5/16	8.7	0.343	1770	3900	21.6	4900	43.2	9700	33.5	1.32	12.2	0.48
10.0	3/8	10.0	0.394	2450	5400	33.8	7600	67.6	15200	35.0	1.38	14.0	0.55
13.0	1/2	13.0	0.512	4170	9200	57.1	12900	114.2	25700	45.5	1.79	18.2	0.72
16.0	5/8	16.0	0.630	5220	11500	86.5	19500	172.9	38900	56.0	2.20	20.0	0.79

3. Transport chain NACM90(G70)

Nominal Size		Material Diameter		Working Load Limit		Proof Test (Min)		Breaking Force (Min)		Inside Lenght		Inside Width
mm	in	mm	in	kg	lb	kn	lb	kn	lb	mm	in	mm	in
7.0	1/4	7.0	0.276	1430	3150	27.0	6100	53.9	12100	31.5	1.24	9.8	0.38
8.0	5/16	8.7	0.343	2130	4700	41.6	9400	83.5	18800	33.5	1.29	12.2	0.48
10.0	3/8	10.0	0.394	2990	6600	55.0	12400	110.0	24700	35.0	1.38	14.0	0.55
13.0	1/2	13.0	0.512	5130	11300	92.9	20900	185.8	41800	45.5	1.79	18.2	0.72
16.0	5/8	16.0	0.630	7170	15800	140.4	31600	280.8	63200	56.0	2.20	20.0	0.79

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