Transport Chain – Dia 16mm NACM Grade 70 Transport Chains
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Chain Parameter
SCIC Grade 70 (G70) transport chains cargo lashing are made as per NACM standards. Chain links are well designed / monitored welding & heat-treatment ensure chains mechanical properties including lashing capacity, proof force, breaking force, elongation & hardness. Full inspection and tests are applied on chain batch.
G70 Transport Chains have the advantages of cleanliness, lightweight, strength and reliability and thus are ideal for tie-down applications for cargo securing with the transport and shipping industries.
We can supply chains with grab hooks and other components, per clients lengths.
Figure 1: Grade 70 chain link dimensions
Table 1: Grade 70 (G70) chain dimensions, NACM
|
Nominal chain size d |
Material diameter |
Inside length p (max.) |
Inside width W1 (min.) |
||||
|
in |
mm |
in |
mm |
in |
mm |
in |
mm |
|
1/4 |
7.0 |
0.281 |
7.0 |
1.24 |
31.5 |
0.38 |
9.8 |
|
5/16 |
8.7 |
0.343 |
8.7 |
1.29 |
32.8 |
0.44 |
11.2 |
|
3/8 |
10.0 |
0.406 |
10.3 |
1.38 |
35.0 |
0.55 |
14.0 |
|
7/16 |
11.9 |
0.468 |
11.9 |
1.64 |
41.6 |
0.65 |
16.6 |
|
1/2 |
13.0 |
0.531 |
13.5 |
1.79 |
45.5 |
0.72 |
18.2 |
|
5/8 |
16.0 |
0.630 |
16.0 |
2.20 |
56.0 |
0.79 |
20.0 |
|
3/4 |
20.0 |
0.787 |
20.0 |
2.76 |
70.0 |
0.98 |
25.0 |
Note: diameter tolerance: -7%; oversized material may be used.
Table 2: Grade 70 (G70) chain mechanical properties, NACM
|
Nominal chain size d |
Working load Limit (max.) |
Proof test (min.) |
Minimum breaking force |
||||
|
in |
mm |
lbs |
kg |
lbs |
kN |
lbs |
kN |
|
1/4 |
7.0 |
3150 |
1430 |
6300 |
28.0 |
12600 |
56.0 |
|
5/16 |
8.7 |
4700 |
2130 |
9400 |
41.8 |
18800 |
83.6 |
|
3/8 |
10.0 |
6600 |
2990 |
13200 |
58.7 |
26400 |
117.4 |
|
7/16 |
11.9 |
8750 |
3970 |
17500 |
77.8 |
35000 |
155.4 |
|
1/2 |
13.0 |
11300 |
5130 |
22600 |
100.4 |
45200 |
200.8 |
|
5/8 |
16.0 |
15800 |
7170 |
31600 |
140.4 |
63200 |
280.8 |
|
3/4 |
20.0 |
24700 |
11200 |
49400 |
219.6 |
98800 |
439.2 |
Note: elongation at fracture of breaking force test is min. 15%
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