34

// WARNING: NEVER EXCEED WORKING LOAD LIMITS

// MADE IN THE USA

OVERHEAD LIFTING

// APPROVED FOR OVERHEAD LIFTING

GRADE 100 / 120

TEMPERATURE 

(F°)

REDUCTION OF 

WORKING LOAD 

LIMIT WHILE AT 

TEMPERATURE

REDUCTION OF 

WORKING LOAD LIMIT 

AFTER EXPOSURE 

TEMPERATURE

BELOW 400°

NONE

NONE

400°

15%

NONE

500°

25%

5%

600°

30%

15%

700°

40%

20%

800°

50%

25%

900°

60%

30%

1000°

70%

35%

OVER 1000°

OSHA 1910.184 REQUIRES ALL SLINGS 

EXPOSED TO TEMPERATURES OVER 1000°F 

TO BE REMOVED FROM SERVICE

GRADE 80

TEMPERATURE 

(F°)

REDUCTION OF 

WORKING LOAD 

LIMIT WHILE AT 

TEMPERATURE

REDUCTION OF 

WORKING LOAD LIMIT 

AFTER EXPOSURE 

TEMPERATURE

BELOW 400°

NONE

NONE

400°

10%

NONE

500°

15%

NONE

600°

20%

5%

700°

30%

10%

800°

40%

15%

900°

50%

20%

1000°

60%

25%

OVER 1000°

OSHA 1910.184 REQUIRES ALL SLINGS 

EXPOSED TO TEMPERATURES OVER 1000°F 

TO BE REMOVED FROM SERVICE

GRADE 120

TRADE

SIZE (IN.)

NOMINAL MATERIAL

DIAMETER (IN.)

MINIMUM ALLOWABLE

THICKNESS ON LINK (IN.)

9/32

0.298

0.259

5/16

0.343

0.298

3/8

0.415

0.361

1/2

0.542

0.472

GRADE 100 & GRADE 80

TRADE

SIZE (IN.)

NOMINAL MATERIAL

DIAMETER (IN.)

MINIMUM ALLOWABLE

THICKNESS ON LINK (IN.)

9/32

0.276

0.239

5/16

0.312

0.273

3/8

0.394

0.342

1/2

0.512

0.443

5/8

0.630

0.546

3/4

0.787

0.687

7/8

0.866

0.750

1

1.020

0.887

1 1/4

1.250

1.213

1 1/2

1.500

1.455

EFFECT OF TEMPERATURE ON WORKING LOAD LIMIT

EFFECT OF TEMPERATURE ON WORKING LOAD LIMIT

 // 

CHAIN WEAR CHART

CHAIN WEAR CHART