Grade 80 Alloy Chain

Nominal Chain Size

Material Diameter

Working Load Limit (Max.)

Proof Test (Min.)

Minimum Breaking Force

Inside Length (Max.)

Inside Width Range

in

mm

in

mm

lbs

kg

lbs

kN

lbs

kN

in

mm

in

mm

7/32

5.5

0.217

5.5

2100

970

4200

19

8400

38

0.69

17.6

0.281~0.325

7.14~8.25

9/32

7

0.276

7

3500

1570

7000

30.8

14000

61.6

0.90

22.9

0.375~0.43

9.53~10.92

5/16

8

0.315

8

4500

2000

9000

40.3

18000

80.6

1.04

26.4

0.43~0.5

10.92~12.7

3/8

10

0.394

10

7100

3200

14200

63

28400

126

1.26

32

0.512~0.6

13~15.2

1/2

13

0.512

13

12000

5400

24000

107

48000

214

1.64

41.6

0.688~0.768

17.48~19.5

5/8

16

0.63

16

18100

8200

36200

161

72400

322

2.02

51.2

0.812~0.945

20.63~24

3/4

20

0.787

20

28300

12800

56600

252

113200

504

2.52

64

0.984~1.18

25~30

7/8

22

0.866

22

34200

15500

68400

305

136800

610

2.77

70.4

1.08~1.3

27.5~33

1

26

1.02

26

47700

21600

95400

425

190800

850

3.28

83.2

1.28~1.54

32.5~39

1-1/4

32

0.26

32

72300

32800

144600

644

289200

1288

4.03

102.4

1.58~1.89

40~48