With stable quality and supply channel management, flanges are widely used in many industries, for example, shipping building, nuclear power, petrochemical industry, paper making, pipeline, pharmacy, electric power etc. equipments.
Shape, size & materials will be according to the following specifications.
Kind
Standard
Material standard
Marking
JIS
JPS B 2220, JIS G 3443-2,
JIS G 3214 JIS G 4304
SUS F304 F316 F316L
SUS 304 316 316L
JPI
JPI-7S-15
The marking of products will be according the following items.
(1) brand (2) material (3) pressure (4) size (5) manufacturing no (6) heat no
MẶT BÍCH JIS INOX CÔNG NGHIỆP (2)
STAINLESS STEEL FLANGES
Flange Material Specifications
Stainless Steel Forging ( JIS 3214 )
Chemical Composition
Grade
C
Si
Mn
P
S
Ni
Cr
Mo
SUS 304
>0.08
>1.00
>2.00
>0.040
>0.030
8.00~
11.00
18.00~
20.00
-
SUS 304L
>0.030
>1.00
>2.00
>0.040
>0.030
9.00~
13.00
18.00~
20.00
-
SUS 316
>0.08
>1.00
>2.00
>0.040
>0.030
10.00~
14.00
16.00~
18.00
2.00~
3.00
SUS316L
>0.030
>1.00
>2.00
>0.040
>0.030
12.00~
15.00
16.00~
18.00
2.00~
3.00
Mechanical Characters
Grade
Diameter & thickness when heated
mm
Y.S
N/mm2
T.S
N/mm2
EL
%
Red of Area
%
HB
14A testing sample
SUS 304
<130
130
<205
<205
<520
<480
<43
<29
<50
<45
>187
>187
SUS 304L
<130
130
<175
<175
<480
<450
<29
<29
<50
<45
>187
>187
SUS 316
<130
130
<205
<205
<520
<480
<43
<29
<50
<45
>187
>187
SUS316L
<130
130
<175
<175
<480
<450
<29
<29
<50
<45
>187
>187
Stainless Steel Plate ( JIS G4304 ) Chemical Composition
Grade
C
Si
Mn
P
S
Ni
Cr
Mo
SUS 304
>0.08
>1.00
>2.00
>0.045
>0.030
8.00~
10.50
18.00~
20.00
-
SUS 304L
>0.030
>1.00
>2.00
>0.045
>0.030
9.00~
13.00
18.00~
20.00
-
SUS 316
>0.08
>1.00
>2.00
>0.045
>0.030
10.00~
14.00
16.00~
18.00
2.00~
3.00
SUS316L
>0.030
>1.00
>2.00
>0.045
>0.030
12.00~
15.00
16.00~
18.00
2.00~
3.0
Mechanical Characters
Grade
Y.S
N/mm2
T.S
N/mm2
EL
%
Hardness
HB
HRB
HV
SUS 304
<205
<520
<40
>187
>90
>200
SUS 304L
<175
<480
<40
>187
>90
>200
SUS 316
<205
<520
<40
>187
>90
>200
SUS316L
<175
<480
<40
>187
>90
>200
MẶT BÍCH JIS INOX CÔNG NGHIỆP (3)
Standard Flange in Stock
FF
Flat Face Flange Mặt bích phẳng
BF
Blind Flange Mặt bích mù
STF
Thread Flange Mặt bích nối ren
RF
Socket Welding Flange Mặt bích hàn lồng
BDRF
Blind Flange RF Mặt bích mù có gờ
FFC
Lap Joint Flange Mặt bích lắp lap joint
Material
SUS F304
Description
Flat face flange
Blind flange
Socket welding flange
Blind flange RF
DBRF
Slip
on
flange
Thread lange
Water supply line flange
Slip on flange
Blind flange
Marking
FF
BF
RF
BDRF
FFC
SORF
STF
WF
WBF
WRF
SORF
BDRF
Specification
JIS B 2220
JIS G 3443-2
JPI-7S-15
Pressure
Size
5k
10k
20k
5k
10k
20k
10k
20k
10k
20k
10k
20k
(A type)
5k
10k
F12
150
300
150
300
10A
B
=
=
=
=
=
=
=
=
=
=
-
-
-
-
-
-
-
-
-
-
-
15
½
=
=
=
=
=
=
=
=
=
=
=
=
=
=
-
-
-
=
=
=
=
20
¾
=
=
=
=
=
=
=
=
=
=
=
=
=
=
-
-
-
=
=
=
=
25
1
=
=
=
=
=
=
=
=
=
=
=
=
=
=
-
-
-
=
=
=
=
32
1¼
=
=
=
=
=
=
=
=
=
=
=
-
=
=
-
-
-
-
-
-
-
40
1½
=
=
=
=
=
=
=
=
=
=
=
=
=
=
-
-
-
=
=
=
=
50
2
=
=
=
=
=
=
=
=
=
=
=
=
=
=
-
-
-
=
=
=
=
65
2½
=
=
=
=
=
=
=
=
=
=
=
=
=
=
-
-
-
=
=
=
=
80
3
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
90
3½
=
=
-
=
=
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
100
4
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
125
5
=
=
=
=
=
=
=
=
=
-
=
-
-
-
=
=
=
=
-
=
-
150
6
=
=
=
=
=
-
=
=
=
-
=
-
-
-
=
=
=
=
-
=
-
200
8
=
=
=
=
=
-
=
=
=
-
=
-
-
-
=
=
=
=
-
=
-
250
10
=
=
=
=
=
-
=
=
=
-
-
-
-
-
=
=
=
=
-
=
-
300
12
=
=
=
=
=
-
=
=
=
-
-
-
-
-
=
=
=
=
-
=
-
350
14
=
=
-
=
=
-
=
-
-
-
-
-
-
-
=
-
=
-
-
-
-
400
16
=
=
-
=
=
-
=
-
-
-
-
-
-
-
=
-
=
-
-
-
-
450
18
=
=
-
=
=
-
-
-
-
-
-
-
-
-
=
-
-
-
-
-
-
500
20
=
=
-
=
=
-
-
-
-
-
-
-
-
-
=
-
-
-
-
-
-
550
22
=
=
-
=
=
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
600
24
=
=
-
=
=
-
-
-
-
-
-
-
-
-
=
-
-
-
-
-
-
MẶT BÍCH JIS INOX CÔNG NGHIỆP (4)
STAINLESS STEEL FLANGES
SORF ( A type )
Slip On Flange ( A type )
Mặt bích JIS Slip On loại A
WBF
Blind Flange
Mặt bích mù JIS WBF
SORF
Slip On Flange
Mặt bích JIS Slip On
WF
Mặt bích JIS WF
WRF
Mặt bích JIS WRF
BDRF
Blind Flange RF
Mặt bích mù JIS BDRF
Material
SUS F316
SUS F316L
Description
Flat
face
flange
Blind flange
Socket welding flange
Blind flange
RF
Flat
Face
Flange
Blind flange
Socket
welding
flange
Blind
flange
RF
Marking
FF
BF
RF
BDRF
FF
BF
RF
BDRF
Specification
JIS B 2220
Pressure
Size
5k
10k
5k
10k
10k
10k
5k
10k
5k
10k
10k
10k
10A
B
=
=
=
=
=
=
-
=
-
=
=
=
15
½
=
=
=
=
=
=
=
=
=
=
=
=
20
¾
=
=
=
=
=
=
=
=
=
=
=
=
25
1
=
=
=
=
=
=
=
=
=
=
=
=
32
1¼
=
=
=
=
=
=
=
=
=
=
=
=
40
1½
=
=
=
=
=
=
=
=
=
=
=
=
50
2
=
=
=
=
=
=
=
=
=
=
=
=
65
2½
=
=
=
=
=
=
=
=
=
=
=
=
80
3
=
=
=
=
=
=
=
=
=
=
=
=
90
3½
-
-
-
-
-
-
-
-
-
-
-
-
100
4
=
=
=
=
=
=
=
=
=
=
=
=
125
5
=
=
=
=
=
=
=
=
=
=
=
=
150
6
=
=
=
=
=
=
=
=
=
=
=
=
200
8
=
=
=
=
=
=
=
=
=
=
=
=
250
10
=
=
=
=
=
=
-
=
-
=
=
=
300
12
=
=
=
=
=
=
-
=
-
=
=
=
350
14
=
=
-
-
=
-
-
=
-
-
-
-
400
16
=
=
-
-
-
-
-
=
-
-
-
-
MẶT BÍCH JIS INOX CÔNG NGHIỆP (5) MẶT BÍCH JIS INOX CÔNG NGHIỆP (5)
JIS Standard Flange Dimensions Sheet
5K Flange Mặt bích 5K
Flat face Flange
Mặt bích phẳng JIS 5K
Blind Flange
Mặt bích mù JIS 5K
Threaded Flange
Mặt bích nối ren JIS 5K
Description
Outside
diam
D
Inside
diam
d
Thickness
t
RC
a
T
r
Connection
C
h
No of bolt holes
Bolt size
A
B
10
75
17.8
9
-
-
-
-
55
12
4
M10
15
½
80
22.2
9
Rc ½
27
13
4
60
12
4
M10
20
¾
85
27.7
10
Rc ¾
33
15
4
65
12
4
M10
25
1
95
34.5
10
Rc 1
41
17
4
75
12
4
M10
32
1¼
115
43.2
12
Rc 1¼
50
19
4
90
15
4
M12
40
1½
120
49.1
12
Rc 1½
56
20
4
95
15
4
M12
50
2
130
61.1
14
Rc 2
69
24
4
105
15
4
M12
65
2½
155
77.1
14
Rc 2½
86
27
4
130
15
4
M12
80
3
180
90.0
14
Rc 3
99
30
4
145
19
4
M16
90
3½
190
102.6
14
-
-
-
-
155
19
4
M16
100
4
200
115.4
16
Rc 4
127
36
4
165
19
8
M16
125
5
235
141.2
16
-
-
-
-
200
19
8
M16
150
6
265
166.6
18
-
-
-
-
230
19
8
M16
200
8
320
218.0
20
-
-
-
-
280
23
8
M20
250
10
385
269.5
22
-
-
-
-
345
23
12
M20
300
12
430
321.0
22
-
-
-
-
39
23
12
M20
350
14
480
358.1
24
-
-
-
-
435
25
12
M22
400
16
540
409.0
24
-
-
-
-
495
25
16
M22
450
18
605
460.0
24
-
-
-
-
555
25
16
M22
500
20
655
511.0
24
-
-
-
-
605
25
20
M22
550
22
720
562.0
26
-
-
-
-
665
27
20
M24
600
24
770
613.0
26
-
-
-
-
715
27
20
M24
MẶT BÍCH JIS INOX CÔNG NGHIỆP (6)MẶT BÍCH JIS INOX CÔNG NGHIỆP (6)
JIS Standard Flange Dimensions Sheet
10K Flange Mặt bích JIS 10K
FF
Flat face Flange
Mặt bích phẳng FF JIS 10K
BF
Blind Flange
Mặt bích mù BF JIS 10K
STF
Threaded Flange
Mặt bích nối ren STF JIS 10K
RF
Socket Welding Flange
Mặt bích hàn lồng RF JIS 10K
BDRF
Blind Flange RF
Mặt bích mù BDRF JIS 10K
FFC
Lap Joint Flange
Mặt bích nối lap joint FFC JIS 10K
Remark: d&c are HONTO’s standard dimensions.
Unit: mm
Nominal
bore
Outside diam
Inside
diam
Thickness
Flast seat
RC
a
T
r
Connection
t
t
g
f
C
h
No of bolt holes
Bolt size
Besides
BF
A
B
D
d
BF
10
75
17.8
12
12
46
1
-
-
-
-
65
15
4
M12
15
½
80
22.2
12
12
51
1
Rc ½
27
13
4
70
15
4
M12
20
¾
85
27.7
14
14
56
1
Rc ¾
33
15
4
75
15
4
M12
25
1
95
34.5
14
14
67
1
Rc 1
41
17
4
90
15
4
M16
32
1¼
115
43.2
16
16
76
2
Rc 1¼
50
19
4
100
19
4
M16
40
1½
120
49.1
16
16
81
2
Rc 1½
56
20
4
105
19
4
M16
50
2
130
61.1
16
16
96
2
Rc 2
69
24
4
120
19
4
M16
65
2½
155
77.1
18
18
116
2
Rc 2½
86
27
4
140
19
4
M16
80
3
180
90.0
18
18
126
2
Rc 3
99
30
4
150
19
8
M16
90
3½
190
102.6
18
18
136
2
-
-
-
-
160
19
8
M16
100
4
200
115.4
18
18
151
2
Rc 4
127
36
4
175
19
8
M16
125
5
235
141.2
20
20
182
2
-
-
-
-
210
19
8
M20
150
6
265
166.6
22
22
212
2
-
-
-
-
240
23
8
M20
200
8
320
218.0
22
22
262
2
-
-
-
-
290
23
12
M20
250
10
385
269.5
24
24
324
2
-
-
-
-
355
25
12
M22
300
12
430
321.0
24
24
368
3
-
-
-
-
400
25
16
M22
350
14
480
358.1
26
26
413
3
-
-
-
-
445
25
16
M22
400
16
540
409.0
28
28
475
3
-
-
-
-
510
27
20
M24
450
18
605
460.0
30
30
530
3
-
-
-
-
565
27
20
M24
500
20
655
511.0
30
30
585
3
-
-
-
-
620
27
20
M24
550
22
720
562.0
32
32
640
3
-
-
-
-
680
33
20
M30
600
24
770
613.0
32
32
690
3
-
-
-
-
730
33
24
M30
MẶT BÍCH JIS INOX CÔNG NGHIỆP (7)MẶT BÍCH JIS INOX CÔNG NGHIỆP (7)
JIS Standard Flange Dimensions Sheet
20K Flange Mặt bích JIS 20K
FF
Flat face Flange
Mặt bích phẳng JIS 20K
BF
Blind Flange
Mặt bích mù BF JIS 20K
SOFT (A type)
Slip on Flange RF
Mặt bích Slip on RF loại A JIS 20K
RF
Socket Welding Flange
Mặt bích hàn lồng RF JIS 20K
BDRF
Blind Flange RF
Mặt bích mù RF JIS 20K
Nominal
bore
Outside diam
D
Inside
diam
d
Thickness
t
Flast seat
a
T
r
Welding part in detail
Connection
A
B
g
f
S
m
a
C
h
No of bolt holes
Bolt size
10
90
17.8
14
46
1
-
-
-
-
-
-
65
15
4
M12
15
½
95
22.2
14
51
1
34
20
4
31
4
-
70
15
4
M12
20
¾
100
27.7
16
56
1
40
22
4
37
4
-
75
15
4
M12
25
1
125
34.5
16
67
1
48
24
4
44
4
-
90
19
4
M16
32
1¼
135
43.2
18
76
2
56
26
5
52
4
-
100
19
4
M16
40
1½
140
49.1
18
81
2
62
26
5
58
4
-
105
19
4
M16
50
2
155
61.1
18
96
2
76
26
5
70
4
-
120
19
8
M16
65
2½
175
77.1
20
116
2
100
30
5
94
6
20°
140
19
8
M16
80
3
200
90.0
22
132
2
113
34
6
107
6
20°
160
23
8
M20
100
4
225
115.4
24
160
2
138
36
6
132
6
20°
185
23
8
M20
125
5
270
141.2
26
195
2
-
-
-
-
-
-
225
25
8
M22
150
6
305
166.6
28
230
2
-
-
-
-
-
-
260
25
12
M22
200
8
350
218.0
30
275
2
-
-
-
-
-
-
305
25
12
M22
250
10
430
269.5
34
345
2
-
-
-
-
-
-
380
27
12
M24
300
12
480
321.0
36
395
3
-
-
-
-
-
-
430
27
16
M24
MẶT BÍCH JIS INOX CÔNG NGHIỆP (8)
JIS Standard Flange Dimensions Sheet
2K Flange Mặt bích JIS 2K
FF
Flat Face Flange
Mặt bích phẳng FF JIS 2K
BF
Blind Flange
Mặt bích mù BF JIS 2K
Unit: mm
Nominal bore
Outside
diam
D
Inside
diam
d
Thickness
t
Connection
A
B
C
h
No of bolt holes
Bolt size
450
18
605
460
M14
500
20
655
511
M14
550
22
720
562
M14
600
24
770
613
M14
Water Delivery Flange
WF
Mặt bích WF JIS 2K
WBF
Mặt bích WBF JIS 2K
WRF
Mặt bích WRF JIS 2K
Nominal bore
A
Outside diam
D
Inside
diam
d
Thickness
t
Flat seat
Connection
g
f
C
h
No of bolt holes
Bolt size
80
211
90.0
18
125
2
168
19
4
M16
100
238
115.4
18
152
2
195
19
4
M16
125
263
141.2
20
177
2
220
19
6
M16
150
290
166.6
22
204
2
247
19
6
M16
200
342
218.0
22
256
2
299
19
8
M16
250
410
269.5
24
308
2
360
23
8
M20
300
464
321.0
24
362
3
414
23
10
M20
350
530
358.1
26
414
3
472
25
10
M22
400
582
409.0
26
466
3
524
25
12
M22
450
652
460.0
28
518
3
585
27
12
M24
500
706
511.0
28
572
3
639
27
12
M24
600
810
613.0
30
676
3
743
27
16
M24
MẶT BÍCH JIS INOX CÔNG NGHIỆP (9)
JPI Flange Dimensions Sheet
SOFT
Slip on Flange RF
Mặt bích Slip on RF JPI
BDRF
Blind Flange RF
Mặt bích mù RF JPI
150
Unit: mm
Nominal bore
Outside diam
D
Inside
diam
d
b
g
Thickness
t
T
Connection
A
B
C
h
No of bolt holes
Bolt size
15
½
90
22.2
30
34.9
9.6
14
60.3
16
4
M14
20
¾
100
27.7
38
42.9
11.2
14
69.9
16
4
M14
25
1
110
34.5
49
50.8
12.7
16
79.4
16
4
M14
32
1¼
115
43.2
59
63.5
14.3
19
88.9
16
4
M14
40
1½
125
49.1
65
73.0
15.9
21
98.4
16
4
M14
50
2
150
61.1
78
92.1
17.5
24
120.7
19
4
M16
65
2½
180
77.1
90
104.8
20.7
27
139.7
19
4
M16
80
3
190
90.0
108
127.0
22.3
29
152.4
19
4
M16
100
4
230
115.4
135
157.2
22.3
32
190.5
19
8
M16
125
5
255
141.2
164
185.7
22.3
35
215.9
22
8
M20
150
6
280
166.6
192
215.9
23.9
38
241.3
22
8
M20
200
8
345
218.0
246
269.9
27.0
43
298.5
22
8
M20
250
10
405
269.5
305
323.8
28.6
48
362.0
26
12
M24
300
12
485
321.0
365
381.0
30.2
54
431.8
26
12
M24
300
Unit: mm
Nominal bore
Outside diam
D
Inside
diam
d
b
g
Thickness
t
T
Connection
A
B
C
h
No of bolt holes
Bolt size
15
½
95
22.2
38
34.9
12.7
21
66.7
16
4
M14
20
¾
115
27.7
48
42.9
14.3
24
82.6
19
4
M16
25
1
125
34.5
54
50.8
15.9
25
88.9
19
4
M16
32
1¼
135
43.2
64
63.5
17.5
25
98.4
19
4
M16
40
1½
155
49.1
70
73.0
19.1
29
114.3
22
4
M20
50
2
165
61.1
84
92.1
20.7
32
127.0
19
8
M16
65
2½
190
77.1
100
104.8
23.9
37
149.2
22
8
M20
80
3
210
90.0
117
127.0
27.0
41
168.3
22
8
M20
100
4
255
115.4
146
157.2
30.2
46
200.0
22
8
M20
125
5
280
141.2
178
185.7
33.4
49
235.0
22
8
M20
150
6
320
166.6
206
215.9
35.0
51
269.9
22
12
M20
200
8
380
218.0
260
269.9
39.7
60
330.2
26
12
M24
250
10
445
269.5
321
323.8
46.1
65
387.4
29
16
M27
300
12
520
321.0
375
381.0
49.3
71
450.8
32
16
M40
MẶT BÍCH JIS INOX CÔNG NGHIỆP (10)
Tolerance of Flange Dimensions
JIS B 2200
Unit: mm
Specification
Kinds
Size
Tolerance
Outside diam
D
ALL
D<600
±1.5
D>600
±3
Diameter of circle of holes
C
ALL
D<950
±0.8
D>950
±1.5
Bolt hole distance
ALL
-
±0.8
Inside diam
d
ALL
D<100
±0.5
0
100
±1
0
400
±1.5
0
600
±2
0
800
±2.5
0
D>1000
±3
0
Qqskee distance
g
RF
SORF
BDRF
D<700
±0.8
D>700
±1.5
Thickness
t-f
FF
BF
STF
FFC
t<20
±1.5
0
20
±2
0
t>50
±3
0
Thickness
t-f
RF
SORF
BDRF
t<20
±1.5
0
20
±2
0
t>50
±3
0
Hub diam
a
SORF
STF
D<220
±2
0
220
±4
0
D>650
±8
0
Overall diam
T
SORF
STF
-
±2
Seat Parallelism
ALL
-
<1°
JIS G 3443-2
Unit: mm
Specification
Kinds
Size
Tolerance
Outside diam
D
ALL
D<300
±1
300
±1.5
600
±2
1000
±2.5
D>1500
±3
Diameter of circle of holes
C
ALL
D<250
±0.5
250
±0.6
550
±0.8
950
±1
D>1350
±1.5
Bolt hole distance
ALL
-
±0.5
Bolt diameter
Bolt hole distance
ALL
-
±1.5
0
Thickness
t
ALL
t<20
±1.5
0
20
±2
0
T>50
±3
0
JPI-7S-15
Unit: mm
Specification
Kinds
Size
Tolerance
Outside diam
D
ALL
D<610
±1.5
D>610
±3.0
Intside diam
d
ALL
D<250A
±1.0
0
D>250A
±1.5
-1.0
b
SORF
D<300A
±1.5
-1.0
D>350A
±3.0
-1.5
t
ALL
D<450A
±3.0
0
D>500A
±5.0
0
T
SORF
D<450A
±3.0
-1.0
D>500A
±5.0
-1.5
Diameter of circle of holes
c
ALL
±1.5
Bolt hole distance
ALL
±0.8
Bolt size
h
ALL
±0.5
g
ALL
±1.0
LƯU Ý:
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