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Amco Metals Threaded Flanges

ANSI B 16.5 Class 1500 lb
ANSI B 16.5
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 4.750 0.930 0.880 1.250 0.880 1.500 1.380 4 0.880 3.250 1.74
21.30 120.6 23.60 22.30 31.70 22.30 38.10 35.00 22.30 82.50
¾ 1.050 5.120 1.140 1.000 1.380 1.000 1.750 1.690 4 0.880 3.500 2.34
26.70 130.0 29.00 25.40 35.00 25.40 44.00 42.90 22.30 88.90
1 1.315 5.880 1.410 1.120 1.620 1.120 2.060 2.000 4 1.000 4.000 3.44
33.40 149.3 35.80 28.40 41.10 28.40 52.30 50.80 25.40 101.6
1 ¼ 1.660 6.250 1.750 1.120 1.620 1.190 2.500 2.500 4 1.000 4.380 3.91
42.20 158.7 44.40 28.40 41.10 30.20 63.50 63.50 25.40 111.2
1 ½ 1.900 7.000 1.990 1.250 1.750 1.250 2.750 2.880 4 1.120 4.880 5.36
48.30 177.8 50.50 31.70 44.50 31.70 69.85 73.15 28.40 123.9
2 2.375 8.500 2.500 1.500 2.250 1.500 4.120 3.620 8 1.000 6.500 9.85
60.30 215.9 63.50 38.10 57.15 38.10 104.6 91.90 25.40 165.1
2 ½ 2.875 9.620 3.000 1.620 2.500 1.880 4.880 4.120 8 1.120 7.500 13.7
73.00 244.3 76.20 41.10 63.50 47.70 123.9 104.6 28.40 190.5

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



ANSI B 16.5 Class 2500 lb
ANSI B 16.5
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 5.250 0.930 1.190 1.560 1.120 1.690 1.380 4 0.880 3.500 2.95
21.30 133.4 23.60 30.20 39.60 28.40 42.90 35.10 22.40 88.90
¾ 1.050 5.500 1.140 1.250 1.690 1.250 2.000 1.690 4 0.880 3.750 3.44
26.70 139.7 29.00 31.75 42.90 31.75 50.80 42.90 22.40 95.30
1 1.315 6.250 1.410 1.380 1.880 1.380 2.250 2.000 4 1.000 4.250 4.82
33.40 158.8 35.80 35.10 47.80 35.10 57.15 50.80 25.40 108.0
1 ¼ 1.660 7.250 1.750 1.500 2.060 1.500 2.880 2.500 4 1.120 5.120 7.14
42.20 1.842 44.50 38.10 52.30 38.10 73.15 63.50 28.40 130.0
1 ½ 1.900 8.000 1.990 1.750 2.380 1.750 3.120 2.880 4 1.250 5.750 10.0
48.30 203.2 50.50 44.50 60.45 44.50 79.25 73.15 31.75 146.1
2 2.375 9.250 2.500 2.000 2.750 2.000 3.750 3.620 8 1.120 6.750 14.8
60.30 235.0 63.50 50.80 69.85 50.80 95.30 91.90 28.40 171.5
2 ½ 2.875 10.50 3.000 2.250 3.120 2.250 4.500 4.120 8 1.250 7.750 21.5
73.00 266.7 76.20 57.15 79.25 57.15 114.3 104.6 31.75 196.9

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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