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ASTM80 standard link chain is one kind of USA standard link chain.It includes proof coil chain ASTM80(G30),high test chain ASTM80(G43) and transport chain ASTM80(G70).
1.Proof coil chain ASTM80(G30) 
Trade
Size |
Material
Diameter |
Working Load Limit |
Proof Test |
Breaking Force Minimum |
Max Lenght Per 100 Links |
Max Weight Per 100 Feet |
| in |
mm |
lbs |
kg |
lbs |
kn |
lbs |
kn |
in |
m |
lbs |
kg |
| 3/16 |
0.218 |
5.5 |
750 |
340 |
1500 |
6.7 |
3000 |
13.3 |
99 |
2.51 |
42 |
19 |
| 1/4 |
0.281 |
7.1 |
1250 |
570 |
2500 |
11.1 |
5000 |
22.2 |
104 |
2.64 |
76 |
34 |
| 5/16 |
0.343 |
8.7 |
1900 |
860 |
3800 |
16.9 |
7600 |
33.8 |
114 |
2.89 |
115 |
52 |
| 3/8 |
0.406 |
10.3 |
2650 |
1200 |
5300 |
23.6 |
10600 |
47.2 |
128 |
3.25 |
166 |
75 |
| 7/16 |
0.468 |
11.9 |
3500 |
1590 |
7000 |
31.1 |
14000 |
62.3 |
142 |
3.60 |
225 |
102 |
| 1/2 |
0.531 |
13.5 |
4500 |
2040 |
9000 |
40.0 |
18000 |
80.1 |
156 |
3.96 |
289 |
131 |
| 5/8 |
0.656 |
16.7 |
6900 |
3130 |
13800 |
61.4 |
27600 |
122.8 |
194 |
4.92 |
425 |
193 |
| 3/4 |
0.781 |
19.8 |
9750 |
4420 |
19500 |
86.7 |
39000 |
173.5 |
220 |
5.59 |
612 |
278 |
2. High test chain ASTM80(G43)
Trade
Size |
Material
Diameter |
Working
Load Limit |
Proof Test |
Breaking Force Minimum |
Max Lenght Per 100 Links |
Max Weight Per 100 Feet |
| in |
mm |
lbs |
kg |
lbs |
kn |
lbs |
kn |
in |
m |
lbs |
kg |
| 1/4 |
0.281 |
7.1 |
2600 |
1180 |
4300 |
19.1 |
7750 |
34.5 |
98 |
2.49 |
84 |
38 |
| 5/16 |
0.343 |
8.7 |
3900 |
1770 |
6400 |
28.5 |
11600 |
51.6 |
110 |
2.79 |
120 |
54 |
| 3/8 |
0.406 |
10.3 |
5400 |
2450 |
8900 |
39.6 |
16200 |
72.1 |
134 |
3.40 |
176 |
80 |
| 7/16 |
0.468 |
11.9 |
7200 |
3260 |
11900 |
52.9 |
21500 |
95.6 |
140 |
3.55 |
230 |
104 |
| 1/2 |
0.531 |
13.5 |
9200 |
4170 |
15300 |
68.1 |
27600 |
122.8 |
150 |
4.06 |
300 |
136 |
3.Transport chain ASTM80(G70) 
Trade
Size |
Material
Diameter |
Working
Load Limit |
Proof Test |
Breaking Force Minimum |
Max Lenght Per 100 Links |
Max Weight Per 100 Feet |
| in |
mm |
lbs |
kg |
lbs |
kn |
lbs |
kn |
in |
m |
lbs |
kg |
| 1/4 |
0.281 |
7.1 |
3150 |
1430 |
6300 |
28.0 |
12600 |
56.1 |
98 |
2.49 |
84 |
38 |
| 5/16 |
0.343 |
8.7 |
4700 |
2130 |
9400 |
41.8 |
18800 |
83.6 |
110 |
2.79 |
120 |
54 |
| 3/8 |
0.406 |
10.3 |
6600 |
3000 |
13200 |
58.7 |
26400 |
117.4 |
134 |
3.40 |
176 |
80 |
| 1/2 |
0.531 |
13.5 |
11300 |
51300 |
22600 |
100.5 |
45200 |
201.1 |
160 |
4.06 |
300 |
136 |
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ASTM80 standard link chain