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Table 1020.4.1 Chemical Composition by Cast Analysis
| Elements |
Composition Percent |
Tolerance Over the Maximum Limit By Product Analysis, Percent
|
| Sulfur, max |
0.05 |
0.01
|
| Sum of Carbon, Maganese, Phosphorous, Silicon and Sulfur,max |
0.70 |
0.04
|
Table 1020.4.2 Tensile Requirements
| Tensile Requirements
|
| Tensile strength, min, psi (MPa) |
45,000 (310)
|
| Yield point, min, psi (MPa) |
33,000 (228)
|
| Elongation in 2 in. (50 mm), min, percent |
20
|
Table 1020.4.3 Specified Thickness, Equivalent Gage, and Minimum Thickness
| English
|
| Equivalent Gage |
Specified Thickness, Coated Sheet, Incha |
Minimum Thickness, Inch
|
| 18 |
0.052 |
0.046
|
| 16 |
0.064 |
0.057
|
| 14 |
0.079 |
0.072
|
| 12 |
0.109 |
0.101
|
| 10 |
0.138 |
0.129
|
| 8 |
0.168 |
0.159
|
| Metric
|
| Specified Thickness, Coated Sheet, mma |
Minimum Thickness, mm
|
| 1.32 |
1.17
|
| 1.63 |
1.45
|
| 2.01 |
1.83
|
| 2.77 |
2.57
|
| 3.51 |
3.28
|
| 4.27 |
4.04
|
| a Thickness is measured at any point on the sheet not less than 3/8 in. (10 mm) from an edge and if corrugated, on the tangents of corrugations.
|
Table 1020.4.4 Corrugation Size
| Specified Size, Inch (mm) |
Maximum Pitch, Inch (mm)a |
Minimum Depth, Inch (mm)b |
Inside Radius, Inch (mm)
|
| Specified |
Minimum
|
| 2 2/3 x ½ (68 x 13) |
2 7/8 (73) |
0.48 (12) |
11/16 (17) |
0.5 (12)
|
| 3 x 1 (75 x 25) |
3 ¼ (83) |
0.95 (24) |
9/16 (14) |
0.5 (12)
|
| a Pitch is measured from crest to crest of corrugations, at 90 degrees to the direction of the corrugations.
|
| b Depth is measured as the vertical distance from a straightedge resting on the corrugation crests to the bottom of the intervening valley.
|
Table 1020.4.5 Covering Width
This table applies only to corrugated sheet in cut lengths.
| Width,Inch (mm) |
Tolerance, Inch (mm)
|
| To 24 (610), inclusive |
± 1/4 (± 6.4)
|
| Over 24 to 36 (610 to 915), inclusive |
± 3/8 (± 9.5)
|
| Over 36 to 48 (915 to 1220), inclusive |
± 1/2 (±12.7)
|
Table 1020.4.6 Edge Lip Dimensions
This table applies to corrugated sheet in cut lengths for the type of fabrication shown.
| Specified Corrugation Size,Inch (mm) |
For Riveted Pipe Construction, Inch (mm) |
For Spot Welded Pipe Construction, Inch (mm)
|
| 2 2/3 x 1/2 (68 x 13) |
3/4 (19) + 3/16 (4.8) – 0 |
7/16 (11) min
|
| 3 x 1 (75 x 25) |
7/8 (22) + 3/16 (4.8) – 0 |
1/2 (13) min
|
Table 1020.4.7 Aluminum Bath Analysis
| Elements |
Composition, Percent
|
| Iron, max |
3.0
|
| Silicon, max |
0.35
|
| Magnesium, max |
0.50
|
| Other, each, max |
0.05
|
| Other, total,max |
0.20
|
Table 1020.4.8 Pipe Requirements
| Specified Inside Diameter, Inch (mm)a |
Specified Corrugation Pitch, Inch (mm)b |
Specified Corrugation Depth, Inch (mm)c |
Width of Lap Inch (mm), Minimum
|
| 12 (300) |
2 2/3 (68) |
1/2 (13) |
1 1/2 (38)
|
| 15 (375) |
2 2/3 (68) |
1/2 (13) |
1 1/2 (38)
|
| 18 (450) |
2 2/3 (68) |
1/2 (13) |
1 1/2 (38)
|
| 21 (525) |
2 2/3 (68) |
1/2 (13) |
1 1/2 (38)
|
| 24 (600) |
2 2/3 (68) |
1/2 (13) |
1 1/2 (38)
|
| 30 (750) |
2 2/3 (68) |
1/2 (13) |
1 1/2 (38)
|
| 36 (900) |
2 2/3 (68) |
1/2 (13) |
1 1/2 (38)
|
| 3 (75) |
1 (25) |
3 (75)
|
| 42 (1050) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 48 (1200) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 54 (1350) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 60 (1500) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 66 (1650) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 72 (1800) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 78 (1950) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 84 (2100) |
2 2/3 (68) |
1/2 (13) |
3 (75)
|
| 3 (75) |
1 (25)
|
| 90 (2250) |
3 (75) |
1 (25) |
3 (75)
|
| 96 (2400) |
3 (75) |
1 (25) |
3 (75)
|
| 102 (2550) |
3 (75) |
1 (25) |
3 (75)
|
| 108 (2700) |
3 (75) |
1 (25) |
3 (75)
|
| 114 (2850) |
3 (75) |
1 (25) |
3 (75)
|
| 120 (3000) |
3 (75) |
1 (25) |
3 (75)
|
a The average inside diameter of circular pipe and pipe to be reformed into pipe-arches shall not vary more than ½ in. (13 mm) from the specified diameter when measured on the inside crest of the corrugations
for diameters through 48 in. (1200 mm) and one percent for diameters greater than 48 in. (1200 mm). In no case shall the difference in diameter of the abutting pipe ends be more than 1/2 in. (13 mm).
|
| b Circular pipe 54 in. (1350 mm) or more in diameter shall be shop elongated. Circular pipe 48 in. (1200 mm) in diameter may be furnished round or shop elongated in accordance with Sec 725.
|
| c Measured on outside at right angle to a line parallel to axis of pipe. The depth of the corrugations shall not underrun that specified by more than 5 percent.
|
| Unless otherwise provided on the plans or in the contract, the minimum thickness listed in Sec 725, for a specified diameter may be furnished.
|
Table 1020.4.9 Pipe-Arch Requirements
| English - 2 2/3 in. x ½ in. Corrugations
|
| Type |
Span, Inchesa |
Rise, Inchesa |
Diameter Equivalent Pipe, Inchesb |
Minimum Corner Radius, Inches |
Maximum B, Inchesc |
Galvanized Sheet Thickness,Inch (Gage)
|
| B5 |
35 |
24 |
30 |
3 |
9 1/2 |
0.064(16)
|
| B6 |
42 |
29 |
36 |
3 1/2 |
10 1/2 |
0.079(14)
|
| B7 |
49 |
33 |
42 |
4 |
11 1/2 |
0.109(12)
|
| B8 |
57 |
38 |
48 |
5 |
13 1/2 |
0.109(12)
|
| B9 |
64 |
43 |
54 |
6 |
15 |
0.109(12)
|
| B10 |
71 |
47 |
60 |
7 |
16 1/2 |
0.138(10)
|
| B11 |
77 |
52 |
66 |
8 |
18 |
0.168(8)
|
| B12 |
83 |
57 |
72 |
9 |
20 |
0.168(8)
|
| Metric - 68 mm x 13 mm Corrugations
|
| Type |
Span, mm1 |
Rise, mm1 |
Diameter Equivalent Pipe,mm2 |
Minimum Corner Radius, mm |
Maximum B, mm3 |
Galvanized Sheet Thickness, mm (Gage)
|
| B5 |
885 |
610 |
750 |
75 |
240 |
1.63
|
| B6 |
1060 |
740 |
900 |
90 |
265 |
2.01
|
| B7 |
1240 |
840 |
1050 |
100 |
290 |
2.77
|
| B8 |
1440 |
970 |
1200 |
130 |
345 |
2.77
|
| B9 |
1620 |
1100 |
1350 |
155 |
380 |
2.77
|
| B10 |
1800 |
1200 |
1500 |
180 |
420 |
3.51
|
| B11 |
1950 |
1320 |
1650 |
205 |
460 |
4.27
|
| B12 |
2100 |
1450 |
1800 |
230 |
510 |
4.27
|
| a A tolerance of plus or minus one inch (25 mm) or 2 percent of equivalent circular diameter, whichever is greater, will be permissible in span and rise.
|
| b Pipe requirements shown in Table 1020.4.8 Pipe Requirements.
|
| c B is defined as the vertical dimension from a horizontal line across the widest portion of the arch to the lowest portion of the base.
|
| All dimensions are measured from the inside crests of the corrugations and the shape shall be essentially of the pipe arch configuration.
|
| Ends of joining sections shall be of the same geometry and shall be adaptable to the coupling bands specified in Sec 1020.
|
Table 1020.4.10 Pipe-Arch Requirements
| English - 3 in. x 1 in. Corrugations
|
| Type |
Pipe-Arch Size, Inches |
Diameter Equivalent Pipe, Inchesa |
Span, Inchesb |
Rise, Inchesb |
Minimum Corner Radius, Inches |
Galvanized Sheet Thickness, Inch (Gage)
|
| B6A |
40x31 |
36 |
41-1.8 |
31+1.8 |
5 |
0.079(14)
|
| B7A |
46x36 |
42 |
46-2.1 |
36+2.1 |
6 |
0.079(14)
|
| B8A |
53x41 |
48 |
53-2.4 |
41+2.4 |
7 |
0.079(14)
|
| B9A |
60x46 |
54 |
60-2.7 |
46+2.7 |
8 |
0.079(14)
|
| B10A |
66x51 |
60 |
66-3.0 |
51+3.0 |
9 |
0.079(14)
|
| B11A |
73x44 |
66 |
73-3.3 |
55+3.3 |
12 |
0.079(14)
|
| B12A |
81x59 |
72 |
81-3.6 |
59+3.6 |
14 |
0.079(14)
|
| B13A |
87x63 |
78 |
87-4.4 |
63+4.4 |
14 |
0.079(14)
|
| B14A |
95x67 |
84 |
95-4.8 |
67+4.8 |
16 |
0.079(14)
|
| B15A |
103x71 |
90 |
103-5.2 |
71+5.2 |
16 |
0.079(14)
|
| B16A |
112x75 |
96 |
112-5.6 |
75+5.6 |
18 |
0.109(12)
|
| B17A |
117x79 |
102 |
117-5.9 |
79+5.9 |
18 |
0.109(13)
|
| B18A |
128x83 |
108 |
128-6.4 |
83+6.4 |
18 |
0.109(14)
|
| B19A |
137x87 |
114 |
137-3.9 |
87+6.9 |
18 |
0.109(15)
|
| B20A |
142x91 |
120 |
142-7.1 |
91+7.1 |
18 |
0.138(10)
|
| Metric - 75 mm x 25 mm Corrugations
|
| Type |
Pipe-Arch Size, mm |
Diameter Equivalent Pipe ,mma |
Span, mmb |
Rise, mmb |
Minimum Corner Radius, mm |
Galvanized Sheet Thickness, mm (Gage)
|
| B6A |
1010x790 |
900 |
1010-45 |
790+45 |
130 |
2.0
|
| B7A |
1160x920 |
1050 |
1160-55 |
920+55 |
155 |
2.0
|
| B8A |
1340x1050 |
1200 |
1340-60 |
1050+60 |
180 |
2.0
|
| B9A |
1520x1170 |
1350 |
1520-70 |
1170+70 |
205 |
2.0
|
| B10A |
1670x1300 |
1500 |
1670-75 |
1300+75 |
230 |
2.0
|
| B11A |
1850x1700 |
1650 |
180-85 |
1400+85 |
305 |
2.0
|
| B12A |
2050x1500 |
1800 |
1060-95 |
1500+95 |
355 |
2.0
|
| B13A |
2200x1620 |
1950 |
2200-110 |
1620+110 |
355 |
2.0
|
| B14A |
2400x1720 |
2100 |
2400-120 |
1720+120 |
410 |
2.0
|
| B15A |
2600x1820 |
2250 |
2600-130 |
1820+130 |
410 |
2.0
|
| B16A |
2980x1920 |
2400 |
2840-145 |
1920+145 |
460 |
2.8
|
| B17A |
2970x2020 |
2550 |
2970-150 |
2020+150 |
460 |
2.8
|
| B18A |
3240x2120 |
2700 |
3240-165 |
2120+165 |
460 |
2.8
|
| B19A |
3470x2220 |
2850 |
3470-175 |
2220+175 |
460 |
2.8
|
| B20A |
3600x2320 |
3000 |
3600-180 |
2320+180 |
460 |
3.5
|
| a Pipe requirements shown in Table 1020.4.8 Pipe Requirements.
|
| b Minus and plus figures in span and rise are tolerances.
|
| All dimensions are measured from the inside crest of corrugations and the shape shall be essentially of the pipe-arch configurations.
|
| Ends of joining sections shall be of the same geometry and shall be adaptable to the coupling bands specified in Sec 1020.
|
Table 1020.4.11 Diameter Dimensional Tolerances (English)
| Specified Inside Diameter, Inch |
Lower Tolerance, Inch |
Lower Tolerance, mma |
Upper Tolerance, Inch |
Upper Tolerance, mma
|
| 12 |
11 8/16 |
292 |
12 8/16 |
318
|
| 15 |
14 8/16 |
368 |
15 8/16 |
394
|
| 18 |
17 8/16 |
445 |
18 8/1 |
470
|
| 21 |
20 8/16 |
521 |
21 8/16 |
546
|
| 24 |
23 8/16 |
597 |
24 8/16 |
622
|
| 30 |
29 8/16 |
749 |
30 8/16 |
775
|
| 36 |
35 8/16 |
902 |
36 8/16 |
927
|
| 42 |
41 8/16 |
1054 |
42 8/16 |
1080
|
| 48 |
47 8/16 |
1207 |
48 8/16 |
1232
|
| 54 |
53 8/16 |
1358 |
54 9/16 |
1385
|
| 60 |
59 7/16 |
1509 |
60 10/16 |
1539
|
| 66 |
65 6/16 |
1660 |
66 11/16 |
1693
|
| 72 |
71 5/16 |
1811 |
72 12/16 |
1847
|
| 78 |
77 4/16 |
1961 |
78 13/16 |
2001
|
| 84 |
83 3/16 |
2112 |
84 14/16 |
2155
|
| 90 |
89 2/16 |
2264 |
90 14/16 |
2308
|
| 96 |
95 1/16 |
2414 |
97 |
2463
|
| 102 |
101 |
2565 |
103 |
2616
|
| 108 |
106 15/16 |
2716 |
109 1/16 |
2770
|
| 114 |
112 14/16 |
2867 |
115 2/16 |
2924
|
| 120 |
118 13/16 |
3018 |
121 3/16 |
3078
|
| a The metric dimensions have been approximately converted from their English counterparts.
|
Table 1020.4.12 Diameter Dimensional Tolerances (Metric)
| Specified Inside Diameter, mm |
Lower Tolerance, mm |
Lower Tolerance, Incha |
Upper Tolerance, mm |
Upper Tolerance, Incha
|
| 300 |
287 |
11 5/16 |
313 |
12 5/16
|
| 375 |
362 |
14 4/16 |
388 |
15 5/16
|
| 450 |
437 |
17 3/16 |
463 |
18 4/16
|
| 525 |
512 |
20 3/16 |
538 |
21 3/16
|
| 600 |
587 |
23 2/16 |
613 |
24 2/16
|
| 750 |
737 |
29 1/16 |
763 |
30 1/16
|
| 900 |
887 |
34 15/16 |
913 |
35 15/16
|
| 1050 |
1037 |
40 14/16 |
1063 |
41 14/16
|
| 1200 |
1187 |
46 12/16 |
1213 |
47 12/16
|
| 1350 |
1337 |
52 10/16 |
1364 |
53 11/16
|
| 1500 |
1485 |
58 8/16 |
1515 |
59 11/16
|
| 1650 |
1634 |
64 5/16 |
1667 |
65 10/16
|
| 1800 |
1782 |
70 3/16 |
1818 |
71 9/16
|
| 1950 |
1931 |
76 |
1970 |
77 9/16
|
| 2100 |
2079 |
81 14/16 |
2121 |
83 8/16
|
| 2250 |
2228 |
87 12/16 |
2273 |
89 8/16
|
| 2400 |
2376 |
93 9/16 |
2424 |
95 7/16
|
| 2550 |
2525 |
99 7/16 |
2576 |
101 7/16
|
| 2700 |
2673 |
105 4/16 |
2727 |
107 6/16
|
| 2850 |
2822 |
111 2/16 |
2879 |
113 6/16
|
| 3000 |
2970 |
116 15/16 |
3030 |
119 5/16
|
| a The English units have been approximately converted from their metric counterparts.
|
Table 1020.4.13 Pipe Deflection (English)
| Specified Inside Diameter, Inch |
Deflected Diameter, Inch |
Deflected Diameter, mma
|
| 12 |
10 13/16 |
275
|
| 15 |
13 8/16 |
343
|
| 18 |
16 3/16 |
411
|
| 21 |
18 15/16 |
480
|
| 24 |
21 10/16 |
548
|
| 30 |
27 |
686
|
| 36 |
32 7/16 |
823
|
| 42 |
37 13/16 |
960
|
| 48 |
43 3/16 |
1097
|
| 54 |
48 10/16 |
1234
|
| 60 |
54 |
1372
|
| 66 |
59 7/16 |
1509
|
| 72 |
64 13/16 |
1646
|
| 78 |
70 3/16 |
1783
|
| 84 |
75 10/16 |
1920
|
| 90 |
81 |
2057
|
| 96 |
86 7/16 |
2195
|
| 102 |
91 13/16 |
2332
|
| 108 |
97 3/16 |
2469
|
| 114 |
102 10/16 |
2606
|
| 120 |
108 |
2743
|
| a The metric dimensions have been approximately converted from their English counterparts.
|
Table 1020.4.14 Pipe Deflection (Metric)
| Specified Inside Diameter, mm |
Deflected Diameter, mm |
Deflected Diameter, Incha
|
| 300 |
|10 10/16
|
| 375 |
337.5 |
13 5/16
|
| 450 |
405 |
15 15/16
|
| 525 |
472.5 |
18 10/16
|
| 600 |
540 |
21 4/16
|
| 750 |
675 |
26 9/16
|
| 900 |
810 |
31 14/16
|
| 1050 |
945 |
37 3/16
|
| 1200 |
1080 |
42 9/16
|
| 1350 |
1215 |
47 14/16
|
| 1500 |
1350 |
53 3/16
|
| 1650 |
1485 |
58 8/16
|
| 1800 |
1620 |
63 13/16
|
| 1950 |
1755 |
69 2/16
|
| 2100 |
1890 |
74 7/16
|
| 2250 |
2025 |
79 12/16
|
| 2400 |
2160 |
85 1/16
|
| 2550 |
2295 |
90 6/16
|
| 2700 |
2430 |
95 11/16
|
| 2850 |
2565 |
101
|
| 3000 |
2700 |
106 5/16
|
| a The English units have been approximately converted from their metric counterparts.
|
Table 1020.4.15 Riveted and Spot Welded Seams
| Specified Sheet Thickness, Inch (mm) |
Rivet or Spot Weld Diameter, inch (mm), min
|
| 2 2/3 x 1/2 in. (68 x 13 mm) Corrugation |
3 x 1 in. (75 x 25 mm) Corrugation
|
| 0.052 (1.32) |
5/16 (8.0) |
-
|
| 0.064 (1.63) |
5/16 (8.0) |
3/8 (9.5)
|
| 0.079 (2.01) |
5/16 (8.0) |
3/8 (9.5)
|
| 3/8 (9.5) |
7/16 (11.0)
|
| 0.138 (3.51) |
3/8 (9.5) |
7/16 (11.0)
|
| 0.168 (4.27) |
3/8 (9.5) |
7/16 (11.0)
|
Table 1020.4.16 Shear Strength of Spot Welds
| Specified Sheet Thickness, Inch (mm) |
Pounds Force (kN),Minimum
|
| 0.064 (1.63) |
4100 (18.2)
|
| 0.079 (2.01 ) |
5200 (23.1)
|
| 0.109 (2.77) |
7000 (31.1)
|
| 0.138 (3.51) |
8500 (37.8)
|
| 0.168 (4.27 ) |
10,000 (44.5)
|
Table 1020.4.17 Tensile Strength of Lock Seams
| Specified Sheet Thickness, Inch (mm) |
Pounds Forcer Per Inch (kN/m) of Width, Minimum
|
| 0.064 (1.63) |
340 (60)
|
| 0.079 (2.01) |
520 (91)
|
| 0.109 (2.77) |
700 (122)
|
| 0.138 (3.50) |
880 (154)
|
| 0.168 (4.27) |
1200 (210)
|