Appendix II to Part 1918—Tables for Selected Miscellaneous Auxiliary Gear (Mandatory)
Note:
This appendix is mandatory and is to be used in the appropriate sections of part 1918 when certificates or the manufacturers' use recommendations are not available.
Table 1—Wire Rope Clips
Improved plow steel, rope (Inches (cm))
Minimum number of clips
Minimum spacing (Inches (cm))
Drop forged
Other material
1⁄2 or less (1.3)
3
4
3 (7.6)
5⁄8 (1.6)
3
4
33⁄4 (9.5)
3⁄4 (1.9)
4
5
41⁄2 (11.4)
7⁄8 (2.2)
4
5
51⁄4 (13.3)
1 (2.5)
5
6
6 (15.2)
11⁄8 (2.9)
6
6
63⁄4 (17.1)
11⁄4 (3.2)
6
7
71⁄2 (19.1)
13⁄8 (3.5)
7
7
81⁄4 (21.0)
11⁄2 (3.8)
7
8
9 (22.9)
Table 2—Natural Fiber Rope and Rope Slings—Load Capacity in Pounds (lbs.) Safety Factor = 5—Eye and Eye Sling—Basket Hitch
[Angle of rope to horizontal—90 deg. 60 deg. 45 deg. 30 deg.]
Rope diameter nominal inch
Vertical hitch
Choker hitch
Angle of rope to vertical
0 deg.
30 deg.
45 deg.
60 deg.
1⁄2
550
250
1,100
900
750
550
9⁄16
700
350
1,400
1,200
1,000
700
5⁄8
900
450
1,800
1,500
1,200
900
3⁄4
1,100
550
2,200
1,900
1,500
1,100
13⁄16
1,300
650
2,600
2,300
1,800
1,300
7⁄8
1,500
750
3,100
2,700
2,200
1,500
1
1,800
900
3,600
3,100
2,600
1,800
11⁄16
2,100
1,100
4,200
3,600
3,000
2,100
11⁄8
2,400
1,200
4,800
4,200
3,400
2,400
11⁄4
2,700
1,400
5,400
4,700
3,800
2,700
15⁄16
3,000
1,500
6,000
5,200
4,300
3,000
11⁄2
3,700
1,850
7,400
6,400
5,200
3,700
15⁄8
4,500
2,300
9,000
7,800
6,400
4,500
13⁄4
5,300
2,700
10,500
9,200
7,500
5,300
2
6,200
3,100
12,500
10,500
8,800
6,200
21⁄8
7,200
3,600
14,500
12,500
10,000
7,200
21⁄4
8,200
4,100
16,500
14,000
11,500
8,200
21⁄2
9,300
4,700
18,500
16,000
13,000
9,300
25⁄8
10,500
5,200
21,000
18,000
14,500
10,500
Endless Sling
1⁄2
950
500
1,900
1,700
1,400
950
9⁄16
1,200
600
2,500
2,200
1,800
1,200
5⁄8
1,600
800
3,200
2,700
2,200
1,600
3⁄4
2,000
950
3,900
3,400
2,800
2,000
13⁄16
2,300
1,200
4,700
4,100
3,300
2,300
7⁄8
2,800
1,400
5,600
4,800
3,900
2,800
1
3,200
1,600
6,500
5,600
4,600
3,200
11⁄16
3,800
1,900
7,600
6,600
5,400
3,800
11⁄8
4,300
2,200
8,600
7,500
6,100
4,300
11⁄4
4,900
2,400
9,700
8,400
6,900
4,900
15⁄16
5,400
2,700
11,000
9,400
7,700
5,400
11⁄2
6,700
3,300
13,500
11,500
9,400
6,700
15⁄8
8,100
4,100
16,000
14,000
11,500
8,100
13⁄4
9,500
4,800
19,000
16,500
13,500
9,500
2
11,000
5,600
22,500
19,500
16,000
11,000
21⁄8
13,000
6,500
26,000
22,500
18,500
13,000
21⁄4
15,000
7,400
29,500
25,500
21,000
15,000
21⁄2
16,500
8,400
33,500
29,000
23,500
16,500
25⁄8
18,500
9,500
37,000
32,500
26,500
18,500
Table 3A
Polypropylene Rope and Rope Slings
Load Capacity in Pounds (lbs.) Safety Factor = 6
Eye and Eye Sling
Basket Hitch
Angle of rope to horizontal
Rope diameter nominal in.
Vertical hitch
Choker hitch
Angle of rope to vertical
0 deg.
30 deg.
45 deg.
60 deg.
1⁄2
650
350
1,300
1,200
950
650
9⁄16
800
400
1,600
1,400
1,100
800
5⁄8
1,000
500
2,000
1,700
1,400
1,000
3⁄4
1,300
700
2,700
2,300
1,900
1,300
13⁄16
1,600
800
2,600
2,300
2,200
1,600
7⁄8
1,800
900
3,100
2,700
2,600
1,800
1
2,200
1,100
3,600
3,100
3,100
2,200
11⁄16
2,500
1,300
4,200
3,600
3,600
2,500
11⁄8
2,900
1,500
4,800
4,200
4,100
2,900
11⁄4
3,300
1,700
6,700
5,800
4,700
3,300
15⁄16
3,700
1,900
7,400
6,400
5,300
3,700
11⁄2
4,700
2,400
9,400
8,100
6,700
4,700
15⁄8
5,700
2,900
11,500
9,900
8,100
5,700
13⁄4
6,800
3,400
13,500
12,000
9,600
6,800
2
8,200
4,100
16,500
14,500
11,500
8,200
21⁄8
9,700
4,800
19,500
16,500
13,500
9,700
21⁄4
11,000
5,500
22,000
19,000
15,500
11,000
21⁄2
12,500
6,300
25,500
22,000
18,000
12,500
25⁄8
14,500
7,100
28,500
24,500
20,000
14,500
Table 3B
Polypropylene Rope and Rope Slings
Load Capacity in Pounds (lbs.) Safety Factor = 6
Endless Sling
Basket Hitch
Angle of rope to horizontal
90 deg. 60 deg. 45 deg. 30 deg.
Rope diameter nominal in.
Vertical hitch
Choker hitch
Angle of rope to vertical
0 deg.
30 deg.
45 deg.
60 deg.
1⁄2
1,200
600
2,400
2,100
1,700
1,200
9⁄16
1,500
750
2,900
2,500
2,100
1,500
5⁄8
1,800
900
3,500
3,100
2,500
1,800
3⁄4
2,400
1,200
4,900
4,200
3,400
2,400
13⁄16
2,800
1,400
5,600
4,900
4,000
2,800
7⁄8
3,300
1,600
6,600
5,700
4,600
3,300
1
4,000
2,000
8,000
6,900
5,600
4,000
11⁄16
4,600
2,300
9,100
7,900
6,500
4,600
11⁄8
5,200
2,600
10,500
9,000
7,400
5,200
11⁄4
6,000
3,000
12,000
10,500
8,500
6,000
15⁄16
6,700
3,400
13,500
11,500
9,500
6,700
11⁄2
8,500
4,200
17,000
14,500
12,000
8,500
15⁄8
10,500
5,100
20,500
18,000
14,500
10,500
13⁄4
12,500
6,100
24,500
21,000
17,500
12,500
2
15,000
7,400
29,500
25,500
21,000
15,000
21⁄8
17,500
8,700
35,500
30,100
24,500
17,500
21⁄4
19,500
9,900
39,500
34,000
28,000
19,500
21⁄2
23,000
11,500
45,500
39,500
32,500
23,000
25⁄8
25,500
13,000
51,500
44,500
36,500
25,500
Table 4A—Rated Load for Grade 80 Alloy Steel Chain Slings1 (Chain per NACM)
Chain size nominal
Single leg sling-90 deg. to horizontal loading
Rated load double leg sling horizontal angle (note 2)
inch
mm
lb
kg
60 deg. Double at 60 deg.
45 deg. Double at 45 deg.
30 deg. Double at 30 deg.
lb
kg
lb
kg
lb
kg
1⁄4
7
3,500
1,570
6,100
2,700
4,900
2,200
3,500
1,590
3⁄8
10
7,100
3,200
12,300
5,500
10,000
4,500
7,100
3,200
1⁄2
13
12,000
5,400
20,800
9,400
17,000
7,600
1,200
5,400
5⁄8
16
18,100
8,200
31,300
14,200
25,600
11,600
18,100
8,200
3⁄4
20
28,300
12,800
49,000
22,300
40,000
18,200
28,300
12,900
7⁄8
22
34,200
15,500
59,200
27,200
48,400
22,200
34,200
15,700
1
26
47,700
21,600
82,600
37,900
67,400
31,000
47,700
21,900
11⁄4
32
72,300
32,800
125,200
56,800
102,200
46,400
72,300
32,800
Notes:
(1) Other grades of proof tested steel chain include Proof Coil (Grade 28), Hi-Test (grade 43 Chain, and Transport (grade 70) Chain. These grades are not recommended for overhead lifting and therefore are not covered by this standard.
(2) Rating of multi-leg slings adjusted for angle of loading between the inclined leg and the horizontal plane of the load.
Table 4B—Maximum Allowable Wear at any Point of Link
Nominal chain or coupling link size
Maximum allowable wear of cross-sectional diameter, in.
inch
mm
1⁄4
7
0.037
3⁄8
10
0.052
1⁄2
13
0.060
5⁄8
16
0.084
3⁄4
20
0.105
7⁄8
22
0.116
1
26
0.137
11⁄4
32
0.169
Note: For other sizes, consult chain or sling manufacturer.
Table 5—Safe Working Loads for Shackles
[In tons of 2,000 pounds]
Material size
Pin diameter
Safe working load in 2,000 lb tons
Inches
(cm)
Inches
(cm)
1⁄2
(1.3)
5⁄8
(1.6)
1.4
5⁄8
(1.6)
3⁄4
(1.9)
2.2
3⁄4
(1.9)
7⁄8
(2.2)
3.2
7⁄8
(2.2)
1
(2.5)
4.3
1
(2.5)
11⁄8
(2.9)
5.6
11⁄8
(2.9)
11⁄4
(3.2)
6.7
11⁄4
(3.2)
13⁄8
(3.5)
8.2
13⁄8
(3.5)
11⁄2
(3.8)
10.0
11⁄2
(3.8)
15⁄8
(4.1)
11.9
13⁄4
(4.4)
2
(5.1)
16.2
2
(5.1)
21⁄4
(5.7)
21.2
Wire Rope Table—Rate Loads for Single Leg Slings 6 × 19 or 6 × 37 Classification Improved Plow Steel Grade Rope With Fiber Core (FC)
[Rated loads [note 1], tons (2,000 lb)]
Vertical
Choker
Rope diameter, inch
HT
MS
S
HT, MS&S
1⁄4
0.49
0.51
0.55
0.38
5⁄16
0.78
0.79
0.85
0.6
3⁄8
1.1
1.1
1.2
0.85
7⁄16
1.4
1.5
1.7
1.2
1⁄2
1.8
2.0
2.1
1.5
9⁄16
2.3
2.5
2.7
1.9
5⁄8
2.8
3.1
3.3
2.3
3⁄4
3.9
4.4
4.8
3.3
7⁄8
5.2
6.0
6.4
4.5
1
6.7
7.7
4.8
5.9
11⁄8
8.4
9.5
11
7.4
11⁄4
10
12
13
9.0
13⁄8
12
14
15
11
11⁄2
15
17
18
13
15⁄8
17
19
21
15
13⁄4
20
22
25
17
2
26
29
32
22
HT = Hand Tucked Splice.
For Hidden Tuck Splice (IWRC), use vales in HT (FC) columns.
MS = Mechanical Splice.
S = Poured Socket or Swaged Socket.
Note: (1) These values are based on slings being vertical. If they are not vertical, the rated load shall be reduced. If two or more slings are used, the minimum horizontal angle between the slings shall also be considered.
Wire Rope Table—Rated Loads for Single Leg Slings 6 × 19 or 6 × 37 Classification Extra Improved Plow Steel Grade Rope With Independent Wire Rope Core (IWRC)
[Rated loads [note 1] , tons (2,000 lb)]
Vertical
Choker
Vertical basket
Rope diameter, inch
HT
MS
S
HT, MS&S
[Note (2)] HT
[Note (3)] MS&S
1⁄4
0.53
0.59
0.59
0.31
1.1
1.1
5⁄16
0.82
0.87
0.92
0.64
1.6
1.7
3⁄8
1.2
1.2
1.3
0.92
2.3
2.5
7⁄16
1.5
1.7
1.8
1.2
3.1
3.4
1⁄2
2.0
2.2
2.3
1.6
4.0
4.4
9⁄16
2.5
2.8
2.9
2.0
1.9
5.5
5⁄8
3.0
3.4
3.6
2.6
6.0
6.8
3⁄4
4.2
4.9
5.1
3.6
8.4
9.7
7⁄8
5.5
6.6
6.9
4.8
11
13
1
7.2
8.5
9.0
6.3
14
17
11⁄8
9.0
10
11
7.9
18
20
11⁄4
11
13
14
9.7
22
26
13⁄8
13
15
17
12
27
31
11⁄2
16
18
20
14
32
37
15⁄8
18
21
23
16
37
43
13⁄4
21
25
27
19
43
49
2
28
32
34
24
55
64
HT = Hand tucked Splice
For Hidden Tuck Splice (IWRC), use values in HT columns of Table 3.
MS = Mechanical Splice. S = Poured Socket or Swaged Socket.
Notes:
(1) These values are based on slings being vertical. If they are not vertical, the rated load shall be reduced. If they are not vertical, the rated load shall be reduced. If two or more slings are used, the minimum horizontal angle between the slings shall also be considered.
(2) These values only apply when the D/d ratio is 15 or greater.
(3) These values only apply when the D/d ratio is 25 or greater.
D = Diameter or curvature around which the body of the sling is bent. d = Diameter of rope.
Wire Rope Table-Rated Loads for Single Leg Slings 6 × 19 or 6 × 37 Classification Extra Improved Plow Steel Grade Rope With Independent Wire Rope Core (IWRC)
[Rated loads [note 1], tons (2,000 lb)]
Vertical
Choker
Vertical basket [note (2)]
Rope diameter
MS
S
MS&S
MS&S
1⁄4
0.65
0.68
0.48
1.3
5⁄16
1.0
1.1
.074
2.0
3⁄8
1.4
1.5
1.1
2.9
7⁄16
1.9
2.0
1.4
3.9
1⁄2
2.5
2.7
1.9
5.1
9⁄16
3.2
3.4
2.4
6.4
5⁄8
3.9
4.1
2.9
7.8
3⁄4
5.6
5.9
4.1
11
7⁄8
7.6
8.0
5.6
15
1
9.8
10
7.2
20
11⁄8
12
13
9.1
24
11⁄4
15
16
11
30
13⁄8
18
19
13
36
11⁄2
21
23
16
42
15⁄8
24
26
18
49
13⁄4
28
31
21
57
2
37
40
28
73
HT = Hand tucked Splice
For Hidden Tuck Splice (IWRC), use values in HT columns of Table 3.
MS = Mechanical Splice.
S = Poured Socket or Swaged Socket.
Note: (1) These values are based on slings being vertical. If they are not vertical, the rated load shall be reduced. If they are not vertical, the rated load shall be reduced. If two or more slings are used, the minimum horizontal angle between the slings shall also be considered.
(2) These values only apply when the D/d ratio is 25 or greater.
[62 FR 40202, July 25, 1997, as amended at 65 FR 40947, June 30, 2000]