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ASME B16.11 Threaded Union in 304/ 316 Stainless Steel

ASME B16.11 Union

Stainless Steel Socket Weld Union Specification

Standards Specification Of : ASME B16.11 Union
MSS SP-43 Corrosion Resistant for Low Pressure, Fabricated and Wrought Butt-Welding Fittings Applications
ASTM A182 – ASME SA182 Standard for Wrought Austenitic Stainless Steel Piping Fittings
ASME B16.9 Wrought Buttwelding Fittings
ASME B16.11 Socket & Threaded– Welding, Forged Fittings
MSS SP-95 Bull Plugs & Swage(d) Nipples
BS3799 Specification of screwed and Socket-welding, Steel pipe fittings

Carbon Steel Threaded Union Dimensions

Bs3799 ASME B16.11 Union Dimensions In Mm
Normal Pipe Size Pipe End Minimum SW Bore Diametar SW Wall Minimum Water Way Bore Laying Length Male Flange Minimum Nut Minimum Threads Per 25.4 Max Bearing Minimum Depth of SW Minimum Length Assem. Nominal Clear Assem. Nut
  A B C D E F G H J K L N
1/8 21.8 10.92
10.67
3.17 6.83
6.43
22.4
19.0
3.17 3.17 16 1.24 9.6 41.1 49.0
¼ 21.8 14.22
13.97
3.30 9.85
9.45
22.4
19.0
3.17 3.17 19 1.24 9.6 41.4 49.0
3/8 25.9 17.78
17.53
3.48 13.92
13.51
26.9
20.6
3.43 3.43 14 1.37 9.6 46.0 55.0
½ 31.2 21.84
21.59
4.06 17.47
17.07
26.9
20.6
3.68 3.68 14 1.50 9.6 49.0 57.0
¾ 37.1 27.18
26.92
4.27 21.79
21.39
31.8
25.4
4.06 4.06 11 1.68 12.7 56.9 67.0
1 45.5 34.04
33.78
4.95 28.14
27.74
34.3
26.2
4.57 4.44 11 1.85 12.7 62.0 79.0
11/4 54.9 42.67
42.42
5.28 35.76
35.36
40.6
32.5
5.33 5.21 11 2.13 12.7 71.1 94.0
11/2 61.5 48.77
48.51
5.54 41.61
41.20
42.2
34.0
5.84 5.59 10 2.31 12.7 75.5 111.0
2 75.2 61.47
61.21
6.05 52.53
52.12
45.3
37.3
6.60 6.35 10 2.69 15.8 86.1 132.0
21/2 91.7 74.17
73.66
7.65 64.72
64.31
61.7
52.1
7.49 7.11 8 3.07 15.8 102.4 148.0
3 109.2 90.17
89.66
8.31 77.67
77.27
63.8
53.6
8.25 8.00 8 3.53 15.8 109.0 175.0


ASME B16.11 Union Weight Chart

ASME B16.11 Union Weight Chart

Reducing Socket Weld Union Temperature Rating

Pressure-Temperature for ASME B16.11 Fittings (psig)
Temperature Class
150 300
1/4 - 1 in. 1 1/4 - 2 in. 2 1/2 - 3 in.
(oF) (oC)
-20 to 150 -29 to 66 300 2000 1500 1000
200 93 265 1785 1350 910
250 121 225 1575 1200 825
300 149 185 1360 1050 735
350 177 150 1150 900 650
400 204 - 935 750 560
450 232 - 725 600 475
500 260 - 510 450 385
550 288 - 300 300 300