Designed for use in load binding,towing,logging and many applications requiring higher strength-to-wieght ratios than Grade 43.Grade 70 meets stringent of transportation requlation with smaller chain that is lighter in weight and easier to handle.

 Grade 70 Transport Chain (ASTM A413-80)                                                    

Art no.
Trade size (inches)
Material Dia(inches)
Inside length(inches)
Inside width(inches)
W.L.L.(lbs)
Proof test(lbs)
Breaking force(lbs)
120201
1/4'
0.281
0.86
0.45
3150
6250
12600
120202
5/16'
0.343
1.01
0.46
4700
9400
18800
120203
3/8'
0.406
1.19
0.55
6600
13200
26400
Grade 70 Transport Chain(NACM 1984.11.8)
Art no.
Trade size (inches)
Material Dia(m/m)
max length/100links(m)
Inside width(m/m)
W.L.L.(kg)
Proof test(kn)
Breaking force(kn)
120308
3/16'
5.5
2.48
7.7
840
16.6
33.3
120309
1/4'
7
3.15
9.8
1370
26.9
53.9
120310
5/16'
8
3.28
11.2
1790
35.2
70.4
120311
3/8'
10
3.5
14
2800
55
110
Grade 70 Transport Chain(National Association of chain Manufacturers welded steel chain specifications(1990)
Art no.
Trade size (inches)
Material Dia(inches)
Inside length(inches)
Inside width(inches)
W.L.L.(lbs)
Proof test(lbs)
Breaking force(lbs)
120412
1/4'
0.276
1.24
0.38
3150
6100
12100
120413
5/16'
0.343
1.32
0.48
4700
9400
18800
120414
3/8'
0.394
1.36
0.55
6600
12400
24700
120415
7/16'
0.468
1.64
0.65
8750
17500
35000
120416
1/2'
0.512
1.79
0.72
11300
20900
41800
120417
5/8'
0.63
2.2
0.79
15800
31700
63300
120418
3/4'
0.787
2.76
0.98
24700
49500
98900
Note:
 a.It is not to be used in overhead lifting applications.
b.Weight and Dimension are subject to a plus or minus tolerance of 4%
c.Surface finishes is for "Yellow Dichormate"usually,other finishes available.
               
Carbon steel chain widely used in industry,construction and other aplications requiring higher strength-to weight ratio than Grade 30

 Grade 43 High Test Chain (ASTM A413-80)                                          

Art no.
Trade size (inches)
Material Dia(inches)
Inside length(inches)
Inside width(inches)
W.L.L.(lbs)
Proof test(lbs)
Weight per 100FT
130501
1/4'
0.281
0.86
0.4
2150
7750
80Lbs
130502
5/16'
0.343
1.05
0.48
3200
11600
111Lbs
130503
3/8'
0.406
1.19
0.58
4450
16200
160Lbs
130504
1/2'
0.531
1.43
0.75
7650
27600
284Lbs
Grade 43 High Test Chain (NACM 1984.11.8)
Art no.
Trade size (inches)
Material Dia(m/m)
max length/100links(m)
Inside width(m/m)
W.L.L.(kg)
Proof test(kn)
Breaking force(kn)
130605
3/16'
5.5
2.48
7.7
520
10.2
20.4
130606
1/4'
7
3.15
9.8
840
16.6
33.1
130607
5/16'
8
3.28
11.2
1100
21.6
43.2
130608
3/8'
10
3.5
14
1720
33.8
67.6
130609
1/2'
13
4.55
18.2
2900
57.1
114.2
Grade 43 High Test Chain (National a)
Art no.
Trade size (inches)
Material Dia(inches)
Inside length(inches)
Inside width(inches)
W.L.L.(lbs)
Proof test(lbs)
Breaking force(lbs)
130710
1/4'
0.276
1.24
0.38
2600
3750
7500
130711
5/16'
0.315
1.29
0.44
3900
4900
8700
130712
3/8'
0.394
1.38
0.55
5400
7600
15200
130713
1/2'
0.512
1.79
0.72
9200
12900
25700
130714
5/8'
0.63
2.2
0.79
11500
19500
38900
130715
3/4'
0.787
2.76
0.98
16200
30400
60700
Note:
 a.Surface finishes is normally for "Bright Finished",other finishes is available. 　 　 　 　 　 　
　 b.Package is usually for "Reel"and "Pail",other package is available.