Use Class 600 for sizes < 31/2
21/2 R27 5.380
136.65
4.250
107.95
0.31
27.92
0.469
11.91
0.03
0.76
21/2 R28 5.880
149.35
4.37511
1.13
0.375
9.53
0.531
13.49
0.06
1.52
3 R29 5.250
133.35
4.500
114.30
0.250
6.35
0.344
8.74
0.03
0.76
-2 -2 R30 - 4.625
117.48
0.312
7.92
0.469
11.91
0.03
0.76
32 32 R31 5.750
146.05
4.875
123.83
0.312
7.92
0.469
11.91
0.03
0.76
3 R31 6.120
155.45
4.875
123.83
0.312
7.92
0.469
11.91
0.03
0.76
3 R32 6.620
168.15
5.000
127.00
0.375
9.53
0.531
13.49
0.06
1.52
31/2 R33 6.060
153.92
5.188
131.78
0.250
6.35
0.344
8.74
0.03
0.76
31/2 31/2 R34 6.250
158.75
5.188
131.78
0.312
7.92
0.469
11.91
0.03
0.76
3 R35 6.620
168.15
5.375
136.53
0.312
7.92
0.469
11.91
0.03
0.76
4 R36 6.750
171.45
5.875
149.23
0.250
6.35
0.344
8.74
0.03
0.76
4 4 4 R37 6.880
174.75
5.875
149.23
0.312
7.92
0.469
11.91
0.03
0.76
4 R37 7.120
180.85
5.875
149.23
0.312
7.92
0.469
11.91
0.03
0.76
4 R38 8.000
203.20
6.1881
57.18
0.438
11.13
0.656
16.66
0.06
1.52
4 R39 7.620
193.55
6.375
161.93
0.312
7.92
0.469
11.91
0.03
0.76
5 R40 7.620
193.55
6.750
171.45
0.250
6.35
0.344
8.74
0.03
0.76
5 5 5 R41 8.250
209.55
7.125
180.98
0.312
7.92
0.469
11.91
0.03
0.76
5 R41 8.500
215.90
7.125
180.98
0.312
7.92
0.469
11.91
0.03
0.76
5 R42 9.500
241.30
7.500
190.50
0.500
12.70
0.781
19.84
0.06
1.52
6 R43 8.620
218.95
7.625
193.68
0.250
6.35
0.344
8.74
0.03
0.76
5 R44 9.000
228.60
7.625
193.68
0.312
7.92
0.469
11.91
0.03
0.76
6 6 6 R45 9.500
241.30
8.312
211.12
0.312
7.92
0.469
11.91
0.03
0.76
6 R45 9.500
241.30
8.312
211.12
0.312
7.92
0.469
11.91
0.03
0.76
6 R46 9.750
247.65
8.312
211.12
0.375
9.53
0.531
13.49
0.06
1.52
6 R47 11.000
279.40
9.000
228.60
0.500
12.70
0.781
19.84
0.06
1.52
8 R48 10.750
273.05
9.750
247.65
0.250
6.35
0.344
8.74
0.03
0.76
8 8 8 R49 11.880
301.75
10.625
269.88
0.312
7.92
0.469
11.91
0.03
0.76
8 R49 12.120
307.85
10.625
269.88
0.312
7.92
0.469
11.91
0.03
0.76
8 R50 12.500
317.50
10.625
269.88
0.438
11.13
0.656
16.66
0.06
1.52
8 R51 13.380
339.85
11.000
279.40
0.562
14.27
0.906
23.01
0.06
1.52
10 R52 13.000
330.20
12.000
304.80
0.250
6.35
0.344
8.74
0.03
0.76
10 10 10 R53 14.000
355.60
12.750
323.85
0.312
7.92
0.469
11.91
0.03
0.76
10 R53 14.250
361.95
12.750
323.85
0.312
7.92
0.469
11.91
0.03
0.76
10 R54 14.620
371.35
12.750
323.85
0.438
11.13
0.656
16.66
0.06
1.52
Ring joint facing dimensions - ASME/ANSI B16.5
and B16.47 Series A (MSS SP-44) and Series B (API 605) (Continued)
Class (lb)
Groove/Ring
Number
Raised
Face Groove
150 300 400 600 900 1500 2500
Nominal Pipe Size (NPS)
Face
Diameter
min
Pitch
Diameter Depth1 Width
Radius
at
Bottom
in
mm
in
mm
in
mm
in
mm
in
mm
Ring Joint Facings - ASME/ANSI B16.5 & B16.47
