Specifications

Question

Specifications

Accepted Answer

forged steel flange dimensions class150

Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg

O
C
R
X
A
Y

in.
1/2&#8243;
3.5
0.44
1.38
1.19
0.84
1.88
4
0.62
1/2
2.38
2

mm.

88.9
11.2
35.1
30.2
21.3
47.8

15.7
12.7
60.5
1

in.
3/4&#8243;
3.88
0.5
1.69
1.5
1.05
2.06
4
0.62
1/2
2.75
2

mm.

98.6
12.7
42.9
38.1
26.7
52.3

15.7
12.7
69.9
1

in.
1&#8243;
4.25
0.56
2
1.94
1.32
2.19
4
0.62
1/2
3.12
3

mm.

108
14.2
50.8
49.3
33.5
55.6

15.7
12.7
79.2
1

in.
1 1/4&#8243;
4.62
0.62
2.5
2.31
1.66
2.25
4
0.62
1/2
3.5
3

mm.

117.3
15.7
63.5
58.7
42.2
57.2

15.7
12.7
88.9
1

in.
1 1/2&#8243;
5
0.69
2.88
2.56
1.9
2.44
4
0.62
1/2
3.88
4

mm.

127
17.5
73.2
65
48.3
62

15.7
12.7
98.6
2

in.
2&#8243;
6
0.75
3.62
3.06
2.38
2.5
4
0.75
5/8
4.75
6

mm.

152.4
19.1
91.9
77.7
60.5
63.5

19.1
15.9
120.7
3

in.
2 1/2&#8243;
7
0.88
4.12
3.56
2.88
2.75
4
0.75
5/8
5.5
8

mm.

177.8
22.4
104.6
90.4
73.2
69.9

19.1
15.9
139.7
4

in.
3&#8243;
7.5
0.94
5
4.25
3.5
2.75
4
0.75
5/8
6
10

mm.

190.5
23.9
127
108
88.9
69.9

19.1
15.9
152.4
5

in.
3 1/2&#8243;
8.5
0.94
5.5
4.81
4
2.81
8
0.75
5/8
7
12

mm.

215.9
23.9
139.7
122.2
101.6
71.4

19.1
15.9
177.8
5

in.
4&#8243;
9
0.94
6.19
5.31
4.5
3
8
0.75
5/8
7.5
15

mm.

228.6
23.9
157.2
134.9
114.3
76.2

19.1
15.9
190.5
7

in.
5&#8243;
10
0.94
7.31
6.44
5.56
3.5
8
0.88
3/4
8.5
19

mm.

254
23.9
185.7
163.6
141.2
88.9

22.4
19.1
215.9
9

in.
6&#8243;
11
1
8.5
7.56
6.63
3.5
8
0.88
3/4
9.5
24

mm.

279.4
25.4
215.9
192
168.4
88.9

22.4
19.1
241.3
11

in.
8&#8243;
13.5
1.12
10.62
9.69
8.63
4
8
0.88
3/4
11.75
39

mm.

342.9
28.4
269.7
246.1
219.2
101.6

22.4
19.1
298.5
18

in.
10&#8243;
16
1.19
12.75
12
10.75
4
12
1
7/8
14.25
52

mm.

406.4
30.2
323.9
304.8
273.1
101.6

25.4
22.2
362
24

in.
12&#8243;
19
1.25
15
14.38
12.75
4.5
12
1
7/8
17
80

mm.

482.6
31.8
381
365.3
323.9
114.3

25.4
22.2
431.8
36

in.
14&#8243;
21
1.38
16.25
15.75
14
5
12
1.12
1
18.75
110

mm.

533.4
35.1
412.8
400.1
355.6
127

28.4
25.4
476.3
50

in.
16&#8243;
23.5
1.44
18.5
18
16
5
16
1.12
1
21.25
140

mm.

596.9
36.6
469.9
457.2
406.4
127

28.4
25.4
539.8
64

in.
18&#8243;
25
1.56
21
19.88
18
5.5
16
1.25
1 1/8
22.75
150

mm.

635
39.6
533.4
505
457.2
139.7

31.8
28.6
577.9
68

in.
20&#8243;
27.5
1.69
23
22
20
5.69
20
1.25
1 1/8
25
180

mm.

698.5
42.9
584.2
558.8
508
144.5

31.8
28.6
635
82

in.
24&#8243;
32
1.88
27.25
26.12
24
6
20
1.38
1 1/4
29.5
260

mm.

812.8
47.8
692.2
663.4
609.6
152.4

35.1
31.8
749.3
118

forged steel flange dimensions class300

Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg

O
C
R
X
A
Y

in.
1/2&#8243;
3.75
0.56
1.38
1.5
0.84
2.06
4
0.62
1/2
2.62
2

mm.

95.3
14.2
35.1
38.1
21.3
52.3

15.7
12.7
66.5
1

in.
3/4&#8243;
4.62
0.62
1.69
1.88
1.05
2.25
4
0.75
5/8
3.25
3

mm.

117.3
15.7
42.9
47.8
26.7
57.2

19.1
15.9
82.6
1

in.
1&#8243;
4.88
0.69
2
2.12
1.32
2.44
4
0.75
5/8
3.5
4

mm.

124
17.5
50.8
53.8
33.5
62

19.1
15.9
88.9
2

in.
1 1/4&#8243;
5.25
0.75
2.5
2.5
1.66
2.56
4
0.75
5/8
3.88
5

mm.

133.4
19.1
63.5
63.5
42.2
65

19.1
15.9
98.6
2

in.
1 1/2&#8243;
6.12
0.81
2.88
2.75
1.9
2.69
4
0.88
3/4
4.5
7

mm.

155.4
20.6
73.2
69.9
48.3
68.3

22.4
19.1
114.3
3

in.
2&#8243;
6.5
0.88
3.62
3.31
2.38
2.75
8
0.75
5/8
5
9

mm.

165.1
22.4
91.9
84.1
60.5
69.9

19.1
15.9
127
4

in.
2 1/2&#8243;
7.5
1
4.12
3.94
2.88
3
8
0.88
3/4
5.88
12

mm.

190.5
25.4
104.6
100.1
73.2
76.2

22.4
19.1
149.4
5

in.
3&#8243;
8.25
1.12
5
4.62
3.5
3.12
8
0.88
3/4
6.62
15

mm.

209.6
28.4
127
117.3
88.9
79.2

22.4
19.1
168.1
7

in.
3 1/2&#8243;
9
1.19
5.5
5.25
4
3.19
8
0.88
3/4
7.25
18

mm.

228.6
30.2
139.7
133.4
101.6
81

22.4
19.1
184.2
8

in.
4&#8243;
10
1.25
6.19
5.75
4.5
3.38
8
0.88
3/4
7.88
25

mm.

254
31.8
157.2
146.1
114.3
85.9

22.4
19.1
200.2
11

in.
5&#8243;
11
1.38
7.31
7
5.56
3.88
8
0.88
3/4
9.25
32

mm.

279.4
35.1
185.7
177.8
141.2
98.6

22.4
19.1
235
15

in.
6&#8243;
12.5
1.44
8.5
8.12
6.63
3.88
12
0.88
3/4
10.62
42

mm.

317.5
36.6
215.9
206.2
168.4
98.6

22.4
19.1
269.7
19

in.
8&#8243;
15
1.62
10.62
10.25
8.63
4.38
12
1
7/8
13
67

mm.

381
41.1
269.7
260.4
219.2
111.3

25.4
22.2
330.2
30

in.
10&#8243;
17.5
1.88
12.75
12.62
10.75
4.62
16
1.12
1
15.25
91

mm.

444.5
47.8
323.9
320.5
273.1
117.3

28.4
25.4
387.4
41

in.
12&#8243;
20.5
2
15
14.75
12.75
5.12
16
1.25
1 1/8
17.75
140

mm.

520.7
50.8
381
374.7
323.9
130

31.8
28.6
450.9
64

in.
14&#8243;
23
2.12
16.25
16.75
14
5.62
20
1.25
1 1/8
20.25
180

mm.

584.2
53.8
412.8
425.5
355.6
142.7

31.8
28.6
514.4
82

in.
16&#8243;
25.5
2.25
18.5
19
16
5.75
20
1.38
1 1/4
22.5
250

mm.

647.7
57.2
469.9
482.6
406.4
146.1

35.1
31.8
571.5
113

in.
18&#8243;
28
2.38
21
21
18
6.25
24
1.38
1 1/4
24.75
320

mm.

711.2
60.5
533.4
533.4
457.2
158.8

35.1
31.8
628.7
145

in.
20&#8243;
30.5
2.5
23
23.12
20
6.38
24
1.38
1 1/4
27
400

mm.

774.7
63.5
584.2
587.2
508
162.1

35.1
31.8
685.8
181

in.
24&#8243;
36
2.75
27.25
27.62
24
6.62
24
1.62
1 1/2
32
580

mm.

914.4
69.9
692.2
701.5
609.6
168.1

41.1
38.1
812.8
263

forged steel flange dimensions class600

Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg

O
C
R
X
A
Y

in.
1/2&#8243;
3.75
0.56
1.38
1.5
0.84
2.06
4
0.62
1/2
2.62
2

mm.

95.3
14.2
35.1
38.1
21.3
52.3

15.7
12.7
66.5
1

in.
3/4&#8243;
4.62
0.62
1.69
1.88
1.05
2.25
4
0.75
5/8
3.25
4

mm.

117.3
15.7
42.9
47.8
26.7
57.2

19.1
15.9
82.6
2

in.
1&#8243;
4.88
0.69
2
2.12
1.32
2.44
4
0.75
5/8
3.5
4

mm.

124
17.5
50.8
53.8
33.5
62

19.1
15.9
88.9
2

in.
1 1/4&#8243;
5.25
0.81
2.5
2.5
1.66
2.62
4
0.75
5/8
3.88
6

mm.

133.4
20.6
63.5
63.5
42.2
66.5

19.1
15.9
98.6
3

in.
1 1/2&#8243;
6.12
0.88
2.88
2.75
1.9
2.75
4
0.88
3/4
4.5
8

mm.

155.4
22.4
73.2
69.9
48.3
69.9

22.4
19.1
114.3
4

in.
2&#8243;
6.5
1
3.62
3.31
2.38
2.88
8
0.75
5/8
5
12

mm.

165.1
25.4
91.9
84.1
60.5
73.2

19.1
15.9
127
5

in.
2 1/2&#8243;
7.5
1.12
4.12
3.94
2.88
3.12
8
0.88
3/4
5.88
18

mm.

190.5
28.4
104.6
100.1
73.2
79.2

22.4
19.1
149.4
8

in.
3&#8243;
8.25
1.25
5
4.62
3.5
3.25
8
0.88
3/4
6.62
23

mm.

209.6
31.8
127
117.3
88.9
82.6

22.4
19.1
168.1
10

in.
3 1/2&#8243;
9
1.38
5.5
5.25
4
3.38
8
1
7/8
7.25
26

mm.

228.6
35.1
139.7
133.4
101.6
85.9

25.4
22.2
184.2
12

in.
4&#8243;
10.75
1.5
6.19
6
4.5
4
8
1
7/8
8.5
42

mm.

273.1
38.1
157.2
152.4
114.3
101.6

25.4
22.2
215.9
19

in.
5&#8243;
13
1.75
7.31
7.44
5.56
4.5
8
1.12
1
10.5
68

mm.

330.2
44.5
185.7
189
141.2
114.3

28.4
25.4
266.7
31

in.
6&#8243;
14
1.88
8.5
8.75
6.63
4.62
12
1.12
1
11.5
81

mm.

355.6
47.8
215.9
222.3
168.4
117.3

28.4
25.4
292.1
37

in.
8&#8243;
16.5
2.19
10.62
10.75
8.63
5.25
12
1.25
1 1/8
13.75
120

mm.

419.1
55.6
269.7
273.1
219.2
133.4

31.8
28.6
349.3
54

in.
10&#8243;
20
2.5
12.75
13.5
10.75
6
16
1.38
1 1/4
17
190

mm.

508
63.5
323.9
342.9
273.1
152.4

35.1
31.8
431.8
86

in.
12&#8243;
22
2.62
15
15.75
12.75
6.12
20
1.38
1 1/4
19.25
225

mm.

558.8
66.5
381
400.1
323.9
155.4

35.1
31.8
489
102

in.
14&#8243;
23.75
2.75
16.25
17
14
6.5
20
1.5
1 3/4
20.75
280

mm.

603.3
69.9
412.8
431.8
355.6
165.1

38.1
34.9
527.1
127

in.
16&#8243;
27
3
18.5
19.5
16
7
20
1.62
1 1/2
23.75
390

mm.

685.8
76.2
469.9
495.3
406.4
177.8

41.1
38.1
603.3
177

in.
18&#8243;
29.25
3.25
21
21.5
18
7.25
20
1.75
1 5/8
25.75
475

mm.

743
82.6
533.4
546.1
457.2
184.2

44.5
41.3
654.1
215

in.
20&#8243;
32
3.5
23
24
20
7.5
24
1.75
1 5/8
28.5
590

mm.

812.8
88.9
584.2
609.6
508
190.5

44.5
41.3
723.9
268

in.
24&#8243;
37
4
27.25
28.25
24
8
24
2
1 7/8
33
830

mm.

939.8
101.6
692.2
717.6
609.6
203.2

50.8
47.6
838.2
376

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Product : Stainless Steel Weld Neck Flange Welding

	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Diam. of hub at point of welding	Length thru hub	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
		O	C	R	X	A	Y
in.	1/2″	3.5	0.44	1.38	1.19	0.84	1.88	4	0.62	1/2	2.38	2
mm.		88.9	11.2	35.1	30.2	21.3	47.8		15.7	12.7	60.5	1
in.	3/4″	3.88	0.5	1.69	1.5	1.05	2.06	4	0.62	1/2	2.75	2
mm.		98.6	12.7	42.9	38.1	26.7	52.3		15.7	12.7	69.9	1
in.	1″	4.25	0.56	2	1.94	1.32	2.19	4	0.62	1/2	3.12	3
mm.		108	14.2	50.8	49.3	33.5	55.6		15.7	12.7	79.2	1
in.	1 1/4″	4.62	0.62	2.5	2.31	1.66	2.25	4	0.62	1/2	3.5	3
mm.		117.3	15.7	63.5	58.7	42.2	57.2		15.7	12.7	88.9	1
in.	1 1/2″	5	0.69	2.88	2.56	1.9	2.44	4	0.62	1/2	3.88	4
mm.		127	17.5	73.2	65	48.3	62		15.7	12.7	98.6	2
in.	2″	6	0.75	3.62	3.06	2.38	2.5	4	0.75	5/8	4.75	6
mm.		152.4	19.1	91.9	77.7	60.5	63.5		19.1	15.9	120.7	3
in.	2 1/2″	7	0.88	4.12	3.56	2.88	2.75	4	0.75	5/8	5.5	8
mm.		177.8	22.4	104.6	90.4	73.2	69.9		19.1	15.9	139.7	4
in.	3″	7.5	0.94	5	4.25	3.5	2.75	4	0.75	5/8	6	10
mm.		190.5	23.9	127	108	88.9	69.9		19.1	15.9	152.4	5
in.	3 1/2″	8.5	0.94	5.5	4.81	4	2.81	8	0.75	5/8	7	12
mm.		215.9	23.9	139.7	122.2	101.6	71.4		19.1	15.9	177.8	5
in.	4″	9	0.94	6.19	5.31	4.5	3	8	0.75	5/8	7.5	15
mm.		228.6	23.9	157.2	134.9	114.3	76.2		19.1	15.9	190.5	7
in.	5″	10	0.94	7.31	6.44	5.56	3.5	8	0.88	3/4	8.5	19
mm.		254	23.9	185.7	163.6	141.2	88.9		22.4	19.1	215.9	9
in.	6″	11	1	8.5	7.56	6.63	3.5	8	0.88	3/4	9.5	24
mm.		279.4	25.4	215.9	192	168.4	88.9		22.4	19.1	241.3	11
in.	8″	13.5	1.12	10.62	9.69	8.63	4	8	0.88	3/4	11.75	39
mm.		342.9	28.4	269.7	246.1	219.2	101.6		22.4	19.1	298.5	18
in.	10″	16	1.19	12.75	12	10.75	4	12	1	7/8	14.25	52
mm.		406.4	30.2	323.9	304.8	273.1	101.6		25.4	22.2	362	24
in.	12″	19	1.25	15	14.38	12.75	4.5	12	1	7/8	17	80
mm.		482.6	31.8	381	365.3	323.9	114.3		25.4	22.2	431.8	36
in.	14″	21	1.38	16.25	15.75	14	5	12	1.12	1	18.75	110
mm.		533.4	35.1	412.8	400.1	355.6	127		28.4	25.4	476.3	50
in.	16″	23.5	1.44	18.5	18	16	5	16	1.12	1	21.25	140
mm.		596.9	36.6	469.9	457.2	406.4	127		28.4	25.4	539.8	64
in.	18″	25	1.56	21	19.88	18	5.5	16	1.25	1 1/8	22.75	150
mm.		635	39.6	533.4	505	457.2	139.7		31.8	28.6	577.9	68
in.	20″	27.5	1.69	23	22	20	5.69	20	1.25	1 1/8	25	180
mm.		698.5	42.9	584.2	558.8	508	144.5		31.8	28.6	635	82
in.	24″	32	1.88	27.25	26.12	24	6	20	1.38	1 1/4	29.5	260
mm.		812.8	47.8	692.2	663.4	609.6	152.4		35.1	31.8	749.3	118

Nominal size		Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Diam. of hub at point of welding	Length thru hub	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
		O	C	R	X	A	Y
in.	1/2″	3.75	0.56	1.38	1.5	0.84	2.06	4	0.62	1/2	2.62	2
mm.		95.3	14.2	35.1	38.1	21.3	52.3		15.7	12.7	66.5	1
in.	3/4″	4.62	0.62	1.69	1.88	1.05	2.25	4	0.75	5/8	3.25	3
mm.		117.3	15.7	42.9	47.8	26.7	57.2		19.1	15.9	82.6	1
in.	1″	4.88	0.69	2	2.12	1.32	2.44	4	0.75	5/8	3.5	4
mm.		124	17.5	50.8	53.8	33.5	62		19.1	15.9	88.9	2
in.	1 1/4″	5.25	0.75	2.5	2.5	1.66	2.56	4	0.75	5/8	3.88	5
mm.		133.4	19.1	63.5	63.5	42.2	65		19.1	15.9	98.6	2
in.	1 1/2″	6.12	0.81	2.88	2.75	1.9	2.69	4	0.88	3/4	4.5	7
mm.		155.4	20.6	73.2	69.9	48.3	68.3		22.4	19.1	114.3	3
in.	2″	6.5	0.88	3.62	3.31	2.38	2.75	8	0.75	5/8	5	9
mm.		165.1	22.4	91.9	84.1	60.5	69.9		19.1	15.9	127	4
in.	2 1/2″	7.5	1	4.12	3.94	2.88	3	8	0.88	3/4	5.88	12
mm.		190.5	25.4	104.6	100.1	73.2	76.2		22.4	19.1	149.4	5
in.	3″	8.25	1.12	5	4.62	3.5	3.12	8	0.88	3/4	6.62	15
mm.		209.6	28.4	127	117.3	88.9	79.2		22.4	19.1	168.1	7
in.	3 1/2″	9	1.19	5.5	5.25	4	3.19	8	0.88	3/4	7.25	18
mm.		228.6	30.2	139.7	133.4	101.6	81		22.4	19.1	184.2	8
in.	4″	10	1.25	6.19	5.75	4.5	3.38	8	0.88	3/4	7.88	25
mm.		254	31.8	157.2	146.1	114.3	85.9		22.4	19.1	200.2	11
in.	5″	11	1.38	7.31	7	5.56	3.88	8	0.88	3/4	9.25	32
mm.		279.4	35.1	185.7	177.8	141.2	98.6		22.4	19.1	235	15
in.	6″	12.5	1.44	8.5	8.12	6.63	3.88	12	0.88	3/4	10.62	42
mm.		317.5	36.6	215.9	206.2	168.4	98.6		22.4	19.1	269.7	19
in.	8″	15	1.62	10.62	10.25	8.63	4.38	12	1	7/8	13	67
mm.		381	41.1	269.7	260.4	219.2	111.3		25.4	22.2	330.2	30
in.	10″	17.5	1.88	12.75	12.62	10.75	4.62	16	1.12	1	15.25	91
mm.		444.5	47.8	323.9	320.5	273.1	117.3		28.4	25.4	387.4	41
in.	12″	20.5	2	15	14.75	12.75	5.12	16	1.25	1 1/8	17.75	140
mm.		520.7	50.8	381	374.7	323.9	130		31.8	28.6	450.9	64
in.	14″	23	2.12	16.25	16.75	14	5.62	20	1.25	1 1/8	20.25	180
mm.		584.2	53.8	412.8	425.5	355.6	142.7		31.8	28.6	514.4	82
in.	16″	25.5	2.25	18.5	19	16	5.75	20	1.38	1 1/4	22.5	250
mm.		647.7	57.2	469.9	482.6	406.4	146.1		35.1	31.8	571.5	113
in.	18″	28	2.38	21	21	18	6.25	24	1.38	1 1/4	24.75	320
mm.		711.2	60.5	533.4	533.4	457.2	158.8		35.1	31.8	628.7	145
in.	20″	30.5	2.5	23	23.12	20	6.38	24	1.38	1 1/4	27	400
mm.		774.7	63.5	584.2	587.2	508	162.1		35.1	31.8	685.8	181
in.	24″	36	2.75	27.25	27.62	24	6.62	24	1.62	1 1/2	32	580
mm.		914.4	69.9	692.2	701.5	609.6	168.1		41.1	38.1	812.8	263

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