Grade 30 roof coil chain is a kind of wekded link chain with load rating G30, is manufactured to meet ASTM & NACM specifications. Its typical uses include barrier chains, trailer safety chains, light construction, marine industry, ect. It should not that the G30 proof coil chain is not to be used for lifting purposes. We offer the proof coil chains meeting the requirements regualted by ASTM in1980, NACM in 1990, 1996, 2003. We are also able to supply relevant attachements. The grade 30 proof coil chain is available in a wide assortment of finished and packaged configurations.
If you are interested in our chains, welcome to contact us.
 

Proof Coil Chain ASTM 80 (G30)

Rade Size Material Diameter Working Load Limit Proof Test Breaking Force Minimum Max Length Per 100 Links 　Max Weight Per 100 Feet IN 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 1950 86.7 39000 173.5 220 5.59 612 278

Proof Coil Chain NACM84/90 (G30)

Nominal Size Material Diameter Working Load Limit Proof Test (Min) Breaking Force Min Inside Length Inside Width MM IN MM IN KG LBS KN LBS KN LBS 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

Proof Coil Chain NACM96 ( G30 )

Nominal Size Material Diameter Working Load Limit Proof Test(Min) Breaking Force Min Inside Length Inside Width MM IN MM IN KG LBS KN LBS KN LBS MM IN MM IN 4.0 1/8 4.0 0.156 180 400 3.8 800 7.2 1600 23.9 0.94 6.4 0.25 5.5 3/16 5.5 0.217 365 800 7.2 1500 14.4 3200 24.8 0.98 7.7 0.30 7.0 1/4 7.0 0.276 580 1300 11.6 2600 23.2 5200 31.5 1.24 9.8 0.38 8.0 5/16 8.4 0.331 860 1900 16.9 3800 33.8 7600 32.8 1.29 11.2 0.44 10.0 3/8 10.0 0.394 1200 2650 23.5 5300 47.2 10600 35.0 1.38 14.0 0.55 11.9 7/16 11.9 0.488 1680 3700 32.9 7400 65.8 14800 41.5 1.64 16.6 0.65 13.0 1/2 13.0 0.512 2030 4500 40.0 9000 80.0 18000 45.5 1.79 18.2 0.72 16.0 5/8 16.0 0.630 3130 6900 61.3 13800 122.8 27600 56.0 2.20 20.0 0.79 20.0 3/4 20.0 0.787 4800 10600 94.3 21200 188.6 42400 70.0 2.78 25.0 0.98 22.0 7/8 22.0 0.866 5810 12800 114.1 25600 228.2 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