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Amco Metals Threaded Flanges
ANSI B 16.5 Class 150 lb
ANSI B 16.5
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Stainless Steel : ASTM A 182, A 240

Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750

Carbon Steel : ASTM A 105, ASTM A 181

Alloy Steel : ASTM A 182, GR F1, F11, F22, F5, F9, F91

Nickel Alloys : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276

Copper Alloys : Copper, Brass & Gunmetal

Size : 1/8" NB TO 48"NB.

Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #

Pipe Flange Data Hub Data Raised Face Drilling Data Weight
A C D E F G H I J
Outside Dia
In Mm		 Overall Dia
In Mm		 Flange Thickness min
In Mm		 Overall Length
In Mm		 Threaded Length min
In Mm		 Hub Dia
In Mm		 Face Dia
In Mm		 Number of Holes Bolt Hole Dia
In Mm		 Dia of Circle of Holes
In Mm		 Kg/ Piece
½ 0.840 3.500 0.440 0.620 0.620 1.190 1.380 4 0.620 2.380 0.39
21.30 88.90 11.20 15.70 15.70 30.20 35.00 15.70 60.45
¾ 1.050 3.880 0.500 0.620 0.620 1.500 1.690 4 0.620 2.750 0.56
26.70 98.60 12.70 15.70 15.70 38.10 42.90 15.70 69.85
1 1.315 4.250 0.560 0.690 0.690 1.940 2.000 4 0.620 3.120 0.78
33.40 108.0 14.20 17.50 17.50 49.30 50.80 15.70 79.25
1 ¼ 1.660 4.620 0.620 0.810 0.810 2.310 2.500 4 0.620 3.500 1.03
42.20 117.3 15.70 20.60 20.60 58.70 63.50 15.70 88.90
1 ½ 1.900 5.000 0.690 0.880 0.880 2.560 2.880 4 0.620 3.880 1.32
48.30 127.0 17.50 22.40 22.40 65.00 73.15 15.70 98.60
2 2.375 6.000 0.750 1.000 1.000 3.060 3.620 4 0.750 4.750 2.06
60.30 152.4 19.10 25.40 25.40 77.70 91.90 19.10 120.7
2 ½ 2.875 7.000 0.880 1.120 1.120 3.560 4.120 4 0.750 5.500 3.28
73.00 177.8 22.40 28.40 28.40 90.40 104.6 19.10 139.7
3 3.500 7.500 0.940 1.190 1.190 4.250 5.000 4 0.750 6.000 3.85
88.90 190.5 23.90 30.20 30.20 108.0 127.0 19.10 152.4
3 ½ 4.000 8.500 0.940 1.250 1.250 4.810 5.500 8 0.750 7.000 4.81
101.6 215.9 23.90 31.75 31.75 122.2 139.7 19.10 177.8
4 4.500 9.000 0.940 1.310 1.310 5.310 6.190 8 0.750 7.500 5.30
114.3 228.6 23.90 33.30 33.30 134.9 157.2 19.10 190.5
5 5.563 10.00 0.940 1.440 1.440 6.440 7.310 8 0.880 8.500 6.07
141.3 254.0 23.90 36.60 36.60 163.6 185.7 22.40 215.9
6 6.625 11.00 1.000 1.560 1.560 7.560 8.500 8 0.880 9.500 7.45
168.3 279.4 25.40 39.60 39.60 192.0 215.9 22.40 241.3
8 8.625 13.50 1.120 1.750 1.750 9.690 10.62 8 0.880 11.75 12.1
219.1 342.9 28.40 44.50 44.50 246.1 269.7 22.40 298.5
10 10.75 16.00 1.190 1.940 1.940 12.00 12.75 12 1.000 14.25 16.5
273.0 406.4 30.20 49.30 49.30 304.8 323.8 25.40 362.0
12 12.75 19.00 1.250 2.190 2.190 14.38 15.00 12 1.000 17.00 26.2
323.8 482.6 31.75 55.60 55.60 365.3 381.0 25.40 431.8
14 14.00 21.00 1.380 2.250 2.250 15.75 16.25 12 1.120 18.75 34.6
355.6 533.4 35.10 57.15 57.15 400.1 412.7 28.40 476.3
16 16.00 23.50 1.440 2.500 2.500 18.00 18.50 16 1.120 21.25 44.8
406.4 596.9 36.60 63.50 63.50 475.2 469.9 28.40 539.8
18 18.00 25.00 1.560 2.690 2.690 19.88 21.00 16 1.250 22.75 48.9
457.2 635.0 39.60 68.30 68.30 505.0 533.4 31.75 577.9
20 20.00 27.50 1.690 2.880 2.880 22.00 23.00 20 1.250 25.00 61.9
508.0 698.5 42.90 73.15 73.15 558.8 584.2 31.75 635.0
24 24.00 32.00 1.880 3.250 3.250 26.12 27.25 20 1.380 29.50 86.9
609.6 812.8 47.80 82.60 82.60 663.4 692.1 35.10 749.3

Notes
  • The thread conforms to ASME B1. 20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads)
  • Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx)
  • Weights are based on manufacturer's data and are approximate


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ANSI B 16.5 Class 300 lb
ANSI B 16.5
Send Enquiry
Stainless Steel : ASTM A 182, A 240

Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750

Carbon Steel : ASTM A 105, ASTM A 181

Alloy Steel : ASTM A 182, GR F1, F11, F22, F5, F9, F91

Nickel Alloys : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276

Copper Alloys : Copper, Brass & Gunmetal

Size : 1/8" NB TO 48"NB.

Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #

Pipe Flange Data Hub Data Raised Face Drilling Data Weight
A B C D E F G H I J
Outside Dia
In Mm		 Overall Dia
In Mm		 Counter Bore
In Mm		 Flange Thickness min
In Mm		 Overall Length
In Mm		 Threaded Length min
In Mm		 Hub Dia
In Mm		 Face Dia
In Mm		 Number of Holes Bolt Hole Dia
In Mm		 Dia of Circle of Holes
In Mm		 Kg/ Piece
½ 0.840 3.750 0.930 0.560 0.880 0.620 1.500 1.380 4 0.620 2.620 0.64
21.30 95.30 23.60 14.20 22.30 15.70 38.10 35.00 15.70 66.55
¾ 1.050 4.620 1.140 0.620 1.000 0.620 1.880 1.690 4 0.750 3.250 1.12
26.70 117.3 29.00 15.70 25.40 15.70 42.70 42.90 19.00 82.50
1 1.315 4.880 1.410 0.690 1.060 0.690 2.120 2.000 4 0.750 3.500 1.36
33.40 124.0 35.80 17.50 26.90 17.50 53.80 50.80 19.00 88.90
1 ¼ 1.660 5.250 1.750 0.750 1.060 0.810 2.500 2.500 4 0.750 3.880 1.68
42.20 133.4 44.40 19.00 26.90 20.60 63.50 63.50 19.00 98.50
1 ½ 1.900 6.120 1.990 0.810 1.190 0.880 2.750 2.880 4 0.880 4.500 2.49
48.30 155.4 50.50 20.60 30.20 22.30 69.85 73.15 22.30 114.3
2 2.375 6.500 2.500 0.880 1.310 1.120 3.310 3.620 8 0.750 5.000 2.87
60.30 165.1 63.50 22.30 33.20 28.40 84.00 91.90 19.00 127.0
2 ½ 2.875 7.500 3.000 1.000 1.500 1.250 3.940 4.120 8 0.880 5.880 4.32
73.00 190.5 76.20 25.40 38.10 31.70 100.0 104.6 22.30 149.3
3 3.500 8.250 3.630 1.120 1.690 1.250 4.620 5.000 8 0.880 6.620 5.85
88.90 209.6 92.20 28.40 42.90 31.70 117.3 127.0 22.30 168.1
3 ½ 4.000 9.000 4.130 1.190 1.750 1.440 5.250 5.500 8 0.880 7.250 7.34
101.6 228.6 104.9 30.20 44.40 36.50 133.3 139.7 22.30 184.1
4 4.500 10.00 4.630 1.250 1.880 1.440 5.750 6.190 8 0.880 7.880 9.61
114.3 254.0 117.6 31.70 47.70 36.50 146.0 157.2 22.30 200.1
5 5.563 11.00 5.690 1.380 2.000 1.690 7.000 7.310 8 0.880 9.250 12.3
141.3 279.4 144.5 35.00 50.80 42.90 177.8 185.7 22.30 234.9
6 6.625 12.50 6.750 1.440 2.060 1.810 8.120 8.500 12 0.880 10.62 15.6
168.3 317.5 171.4 36.50 52.30 45.90 206.2 215.9 22.30 269.7
8 8.625 15.00 8.750 1.620 2.440 2.000 10.25 10.62 12 1.000 13.00 24.2
219.1 381.0 222.3 41.10 61.90 50.80 260.3 269.7 25.40 330.2
10 10.75 17.50 10.88 1.880 2.620 2.190 12.62 12.75 16 1.120 15.25 34.1
273.0 444.5 276.3 47.70 66.55 55.60 320.5 323.8 28.40 387.3
12 12.75 20.50 12.94 2.000 2.880 2.380 14.75 15.00 16 1.250 17.75 49.8
323.8 520.7 328.7 50.80 73.15 60.45 374.6 381.0 31.70 450.8
14 14.00 23.00 14.19 2.120 3.000 2.500 16.75 16.25 20 1.250 20.25 69.9
355.6 584.2 360.4 53.80 76.20 63.50 425.4 412.7 31.70 514.3
16 16.00 25.50 16.19 2.250 3.250 2.690 19.00 18.50 20 1.380 22.50 88.1
406.4 647.7 411.2 57.15 82.50 68.30 482.6 469.9 35.00 571.5
18 18.00 28.00 18.19 2.380 3.500 2.750 21.00 21.00 24 1.380 24.75 109
457.2 711.2 462.0 60.45 88.90 69.85 533.4 533.4 35.00 628.6
20 20.00 30.50 20.19 2.500 3.750 2.880 23.12 23.00 24 1.380 27.00 134
508.0 774.7 512.8 63.50 95.2 73.15 587.2 584.2 35.00 685.8
24 24.00 36.00 24.19 2.750 4.190 3.250 27.62 27.25 24 1.620 32.00 201
609.6 914.4 614.4 69.85 106.4 82.50 701.5 692.1 41.10 812.8

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Notes
  • The thread conforms to ASME B1. 20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads)
  • Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx)
  • Weights are based on manufacturer's data and are approximate




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