|
codes
& standards
Back
to codes and standards index
Carbon and Stainless Steel Flanges
- ASME/ANSI Class 150
ASME/ANSI B16.5-1996
Pipe Flanges and Flanged Fittings - Class 150 Flanges - outside
and inside diameters, bolt circles, numbers and diameters of bolts
for Weld neck, Threaded, Slip-on, Lap
joint, Socket weld and Blind flanges.
Carbon and stainless
steel qualities according ASME B16.5 Table 1A.
Pipe Size
(inches) |
Outside Diameter
(inches) |
Inside Diameter
(inches) |
Number of Bolt
Holes |
Bolt Hole Diameter
(inches) 1) |
Bolt Circle
(inches) |
| 1/2 |
3-1/2 |
0.88 |
4 |
5/8 |
2-3/8 |
| 3/4 |
3-7/8 |
1.09 |
4 |
5/8 |
2-3/4 |
| 1 |
4-1/4 |
1.36 |
4 |
5/8 |
3-1/8 |
| 1-1/4 |
4-5/8 |
1.70 |
4 |
5/8 |
3-1/2 |
| 1-1/2 |
5 |
1.95 |
4 |
5/8 |
3-7/8 |
| 2 |
6 |
2.44 |
4 |
3/4 |
4-3/4 |
| 2-1/2 |
7 |
2.94 |
4 |
3/4 |
5-1/2 |
| 3 |
7-1/2 |
3.57 |
4 |
3/4 |
6 |
| 3-1/2 |
8-1/2 |
4.07 |
8 |
3/4 |
7 |
| 4 |
9 |
4.60 |
8 |
3/4 |
7-1/2 |
| 5 |
10 |
5.66 |
8 |
7/8 |
8-1/2 |
| 6 |
11 |
6.72 |
8 |
7/8 |
9-1/2 |
| 8 |
13-1/2 |
8.72 |
8 |
7/8 |
11-3/4 |
| 10 |
16 |
10.88 |
12 |
1 |
14-1/4 |
| 12 |
19 |
12.88 |
12 |
1 |
17 |
| 14 |
21 |
14.14 |
12 |
1-1/8 |
18-3/4 |
| 16 |
23-1/2 |
16.16 |
16 |
1-1/8 |
21-1/4 |
| 18 |
25 |
18.18 |
16 |
1-1/4 |
22-3/4 |
| 20 |
27-1/2 |
20.20 |
20 |
1-1/4 |
25 |
| 24 |
32 |
24.25 |
20 |
1-3/8 |
29-1/2 |
| 
