Carbon Steel Flanges
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Grand Metal Corporation is acknowledged as a manufacturer, exporter & suppliers of Carbon Steel Flanges, available in a variety or grades, materials, and finishes, in metric and inch sizes. full line fastener distributor specializing in industrial products for companies involved in Equipment Manufacturing, Mining, Oil Refineries, Chemical manufacturing, Steel and Aluminium Manufacturing, Utilities and Transportation, and Industrial Construction.
Grand Metal Corporation carries a variety of Carbon Steel Flanges from Carbon Steel, Stainless Steel and High Nickel Alloy -F467 NiCu 400 (Monel) and commercial 18-8/304, 316L Stainless Steel. We supply Carbon Steel Flanges at Best suitable price.
Type of Carbon Steel Flanges like SORF, SWRF, WNRF, BLRF, LAP Joint, Reducing, Spectacle, Threaded & As per your Drawing in International Standard like ASTM, BS, IS Etc. as per ASA, DIN Table etc. with Manufacturer Test Certificate & IBR Test Certificate.
Specification of Carbon Steel Flanges
| Standard |
ANSI, JIS, DIN, EN1092-1, UNI, BS4504, SABS1123, AS2129, GOST-12820 |
| Sizes |
1/8" NB TO 24" NB |
| Class |
150#, 300#, 400#, 600#, 900#, 1500# & 2500#. |
| Wall Thickness |
SCH.10, 20, 30, 40, 80, 120, 160, STD, XS, XXS. |
| Material |
ASTM A105, ASME A105, ASTM A266 GR.1, GR.2, GR.3, GR.4, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70 |
| Form |
Slip on Flanges – SORF, Weld neck Flanges – WNRF, Socket weld Flanges – SWRF, Blind Flanges – BLRF Lapped joint Flanges, Screwed Flanges, Long weld neck Flanges, Reducing Flanges, Spectacle Flanges, Ring joint Flange |
Useful Information Carbon Steel Flanges
Flanges are commonly used to connect valves into pipework making it easier for removal and maintenance. There are many common flange standards and flanges within the same standard can either be flat (commonly cast iron, ductile iron) or raised face (commonly cast steel and stainless steel). Below is a reference table for critical flange dimensions to help identify what standard you have.
| Standard |
Class |
Diameter |
Bolt Circle Diameter |
Number of Bolts |
Bolt Size |
Diameter of Bolt Hole |
| AS4087 |
PN14 |
95 |
67 |
4 |
M12 |
14 |
| AS 2129 |
Table C |
95 |
67 |
4 |
13 |
14 |
| Table D |
95 |
67 |
4 |
13 |
14 |
| Table E |
95 |
67 |
4 |
13 |
14 |
| Table F |
95 |
67 |
4 |
13 |
14 |
| Table H |
114 |
83 |
4 |
16 |
17 |
| Table J |
114 |
83 |
4 |
16 |
17 |
| ANSI B16.5 |
ANSI 150 |
89 |
60 |
4 |
13 |
16 |
| ANSI 300 |
95 |
67 |
4 |
13 |
16 |
| ANSI 600 |
95 |
67 |
4 |
13 |
16 |
| ANSI 900 |
121 |
83 |
4 |
19 |
22 |
| ANSI 1500 |
121 |
83 |
4 |
19 |
22 |
| ISO 7005 (DIN) |
PN6 |
80 |
55 |
4 |
M10 |
11 |
| PN10 |
95 |
65 |
4 |
M12 |
14 |
| PN16 |
95 |
65 |
4 |
M12 |
14 |
| PN20 |
90 |
60.5 |
4 |
M14 |
16 |
| PN25 |
95 |
65 |
4 |
M12 |
14 |
| PN40 |
95 |
65 |
4 |
M12 |
14 |
600mm
| Standard |
Class |
Diameter |
Bolt Circle Diameter |
Number of Bolts |
Bolt Size |
Diameter of Bolt Hole |
| AS 4087 |
PN14 |
825 |
756 |
16 |
M27 |
30 |
| PN16 |
825 |
756 |
16 |
M27 |
30 |
| PN21 |
850 |
781 |
24 |
M33 |
36 |
| PN35 |
750 |
781 |
24 |
M33 |
36 |
| AS 2129 |
Table C |
825 |
756 |
16 |
25 |
30 |
| Table D |
825 |
756 |
16 |
25 |
30 |
| Table E |
825 |
756 |
16 |
29 |
33 |
| Table F |
850 |
781 |
24 |
32 |
36 |
| Table H |
850 |
781 |
24 |
32 |
36 |
| Table J |
850 |
781 |
24 |
35 |
39 |
| ANSI B16.5 |
ANSI 150 |
813 |
749 |
20 |
32 |
35 |
| ANSI 300 |
914 |
813 |
24 |
38 |
41 |
| ANSI 600 |
940 |
838 |
24 |
48 |
51 |
| ANSI 900 |
1041 |
902 |
20 |
64 |
67 |
| ANSI 1500 |
1168 |
991 |
16 |
89 |
92 |
| ISO 7005 (DIN) |
PN6 |
755 |
705 |
20 |
M24 |
26 |
| PN10 |
780 |
725 |
20 |
M27 |
30 |
| PN16 |
840 |
770 |
20 |
M33 |
36 |
| PN20 |
815 |
749.5 |
20 |
M33 |
36 |
| PN25 |
- |
- |
- |
- |
- |
| PN40 |
- |
- |
- |
- |
- |
Pressure Rating of Carbon Steel Flange
| Pressure-Temperature Ratings for ASTM Group 2-2.3 Materials |
| Working pressure by Classes, BAR |
| Temp.°C |
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
| -29 to 38 |
15.9 |
41.4 |
55.2 |
82.7 |
124.1 |
206.8 |
344.7 |
| 50 |
15.3 |
40 |
53.4 |
80 |
120.1 |
200.1 |
333.5 |
| 100 |
13.3 |
34.8 |
46.4 |
69.6 |
104.4 |
173.9 |
289.9 |
| 150 |
12 |
31.4 |
41.9 |
62.8 |
94.2 |
157 |
261.6 |
| 200 |
11.2 |
29.2 |
38.9 |
58.3 |
87.5 |
145.8 |
243 |
| 250 |
10.5 |
27.5 |
36.6 |
54.9 |
82.4 |
137.3 |
228.9 |
| 300 |
10 |
26.1 |
34.8 |
52.1 |
78.2 |
130.3 |
217.2 |
| 325 |
9.3 |
25.5 |
34 |
51 |
76.4 |
127.4 |
212.3 |
| 350 |
8.4 |
25.1 |
33.4 |
50.1 |
75.2 |
125.4 |
208.9 |
| 375 |
7.4 |
24.8 |
33 |
49.5 |
74.3 |
123.8 |
206.3 |
| 400 |
6.5 |
24.3 |
32.4 |
48.6 |
72.9 |
121.5 |
202.5 |
| 425 |
5.5 |
23.9 |
31.8 |
47.7 |
71.6 |
119.3 |
198.8 |
| 450 |
4.6 |
23.4 |
31.2 |
46.8 |
70.2 |
117.1 |
195.1 |
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