Tables to §393.108
[Working Load Limits (WLL), Chain]
Size mm (inches) | WLL in kg (pounds) | ||||
Grade 30 proof coil | Grade 43 high test | Grade 70 transport | Grade 80 alloy | Grade 100 alloy | |
1. 7 (1/4) | 580 (1,300) | 1,180 (2,600) | 1,430 (3,150) | 1,570 (3,500) | 1,950 (4,300) |
2. 8 (5/16) | 860 (1,900) | 1,770 (3,900) | 2,130 (4,700) | 2,000 (4,500) | 2,600 (5,700) |
3. 10 (3/8) | 1,200 (2,650) | 2,450 (5,400) | 2,990 (6,600) | 3,200 (7,100) | 4,000 (8,800) |
4. 11 (7/16) | 1,680 (3,700) | 3,270 (7,200) | 3,970 (8,750) | ||
5. 13 (1/2) | 2,030 (4,500) | 4,170 (9,200) | 5,130 (11,300) | 5,400 (12,000) | 6,800 (15,000) |
6. 16 (5/8) | 3,130 (6,900) | 5,910 (13,000) | 7,170 (15,800) | 8,200 (18,100) | 10,300 (22,600) |
Chain Mark Examples: | |||||
Example 1 | 3 | 4 | 7 | 8 | 10 |
Example 2 | 30 | 43 | 70 | 80 | 100 |
Example 3 | 300 | 430 | 700 | 800 | 1000 |
Synthetic Webbing
Width mm (inches) | WLL kg (pounds) |
45 (1 3/4) | 790 (1,750) |
50 (2) | 910 (2,000) |
75 (3) | 1,360 (3,000) |
100 (4) | 1,810 (4,000) |
Wire Rope (6 * 37, Fiber Core)
Diameter mm (inches) | WLL kg (pounds) |
7 (1/4) | 640 (1,400) |
8 (5/16) | 950 (2,100) |
10 (3/8) | 1,360 (3,000) |
11 (7/16) | 1,860 (4,100) |
13 (1/2) | 2,400 (5,300) |
16 (5/8) | 3,770 (8,300) |
20 (3/4) | 4,940 (10,900) |
22 (7/8) | 7,300 (16,100) |
25 (1) | 9,480 (20,900) |
Manila Rope
Diameter mm (inches) | WLL kg (pounds) |
10 (3/8) | 90 (205) |
11 (7/16) | 120 (265) |
13 (1/2) | 150 (315) |
16 (5/8) | 210 (465) |
20 (3/4) | 290 (640) |
25 (1) | 480 (1,050) |
Polypropylene Fiber Rope WLL (3-Strand and 8-Strand Constructions)
Diameter mm (inches) | WLL kg (pounds) |
10 (3/8) | 180 (400) |
11 (7/16) | 240 (525) |
13 (1/2) | 280 (625) |
16 (5/8) | 420 (925) |
20 (3/4) | 580 (1,275) |
25 (1) | 950 (2,100) |
Polyester Fiber Rope WLL (3-Strand and 8-Strand Constructions)
Diameter mm (inches) | WLL kg (pounds) |
10 (3/8) | 250 (555) |
11 (7/16) | 340 (750) |
13 (1/2) | 440 (960) |
16 (5/8) | 680 (1,500) |
20 (3/4) | 850 (1,880) |
25 (1) | 1,500 (3,300) |
Nylon Rope
Diameter mm (inches) | WLL kg (pounds) |
10 (3/8) | 130 (278) |
11 (7/16) | 190 (410) |
13 (1/2) | 240 (525) |
16 (5/8) | 420 (935) |
20 (3/4) | 640 (1,420) |
25 (1) | 1,140 (2,520) |
Double Braided Nylon Rope
Diameter mm (inches) | WLL kg (pounds) |
10 (3/8) | 150 (336) |
11 (7/16) | 230 (502) |
13 (1/2) | 300 (655) |
16 (5/8) | 510 (1,130) |
20 (3/4) | 830 (1,840) |
25 (1) | 1,470 (3,250) |
Steel Strapping
Width * thickness mm (inches) | WLL kg (pounds) |
31.7 * .74 (1 1/4 * 0.029) | 540 (1,190) |
31.7 * .79 (1 1/4 * 0.031) | 540 (1,190) |
31.7 * .89 (1 1/4 * 0.035) | 540 (1,190) |
31.7 * 1.12 (1 1/4 * 0.044) | 770 (1,690) |
31.7 * 1.27 (1 1/4 * 0.05) | 770 (1,690) |
31.7 * 1.5 (1 1/4 * 0.057) | 870 (1,925) |
50.8 * 1.12 (2 * 0.044) | 1,200 (2,650) |
50.8 * 1.27 (2 * 0.05) | 1,200 (2,650) |
49 C.F.R. § 393.108