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WELDING NECK |
SLIP ON |
THREADED |
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CLASS 300
FLANGES FORGED STEEL ASTM A-105 ANSI B 16.5
STAINLESS STEEL S304,S304L,S316,S316L |
| Nom. Size |
Flange Outside Dia. |
Flange2 Thickness
Min. |
Raised Face Dia. |
BORE |
Length thru. Hub 2 |
| Welding Neck& Socket welding |
Slip on, Sock Weld. Socket. Min. |
Lap Joint Min. |
Threaded Counter- Bore Min. |
Welding Neck |
Slip on, Threaded Sock. Weld |
Lap Joint |
| O |
T |
A |
B3 |
C |
D |
E |
F |
G |
H |
| 15 |
95 |
14.5 |
34.9 |
15.8 |
22.2 |
22.9 |
23.5 |
52.4 |
22 |
22 |
| 20 |
117 |
16.0 |
42.9 |
20.8 |
27.8 |
28.2 |
29.0 |
57.1 |
25 |
25 |
| 25 |
124 |
17.5 |
50.8 |
26.6 |
34.5 |
34.9 |
36.0 |
61.9 |
27 |
27 |
| 32 |
133 |
19.5 |
63.5 |
35.1 |
43.3 |
43.7 |
44.5 |
65.1 |
27 |
27 |
| 40 |
156 |
21.0 |
73.0 |
40.9 |
49.6 |
50.0 |
50.5 |
68.3 |
30 |
30 |
| 50 |
165 |
22.5 |
92.1 |
52.6 |
81.9 |
62.5 |
63.5 |
69.8 |
33 |
33 |
| 65 |
191 |
25.5 |
104.8 |
62.7 |
74.6 |
75.4 |
76 |
76.2 |
38 |
38 |
| 80 |
210 |
29.0 |
127.0 |
77.9 |
90.7 |
91.4 |
92 |
79.4 |
43 |
43 |
| 90 |
229 |
30.5 |
139.7 |
90.1 |
103.4 |
104.1 |
105 |
81.0 |
44 |
44 |
| 100 |
254 |
32.0 |
157.2 |
102.3 |
116.1 |
116.8 |
118 |
85.7 |
48 |
48 |
| 125 |
279 |
35.0 |
185.7 |
128.2 |
143.7 |
144.5 |
145 |
98.4 |
51 |
51 |
| 150 |
318 |
37.0 |
215.9 |
154.1 |
170.7 |
171.4 |
171 |
98.4 |
52 |
52 |
| 200 |
381 |
41.5 |
269.9 |
202.7 |
221.5 |
222.2 |
222 |
111.1 |
62 |
62 |
| 250 |
445 |
48.0 |
323.8 |
254.5 |
276.2 |
277.4 |
276 |
117.5 |
67 |
95 |
| 300 |
520 |
51.0 |
381.0 |
304.8 |
327.0 |
328.2 |
329 |
130.2 |
73 |
102 |
| 350 |
585 |
54.0 |
412.8 |
To be Specified
By Purchaser |
359.2 |
360.2 |
360 |
142.9 |
76 |
111 |
| 400 |
650 |
57.5 |
469.9 |
410.4 |
411.2 |
411 |
146.0 |
83 |
121 |
| 450 |
710 |
60.5 |
533.4 |
461.8 |
462.3 |
462 |
158.7 |
89 |
130 |
| 500 |
775 |
63.5 |
584.2 |
513.1 |
514.3 |
513 |
161.9 |
95 |
140 |
| 600 |
915 |
70.0 |
692.2 |
615.9 |
615.9 |
614 |
168.3 |
106 |
152 |
|
| 1. Socket Welding Flanges,sizes
NPS 3.1/2"(DN90) and larger are not covered by ANSI
B16.5 |
| 2. Includes .06"(1.6mm)
raised face. |
| 3. These dimensions correspond
to inside diameters of pipe as given in ANSI B16.10 for |
| Standard Wall Pipe.Thickness
of Standard Wall is the same as Schedule 40 in size NPS |
| 10(DN250) and smaller. |
