Carbon Steel Flanges
In pipework, flanges are mainly used for the connection of pipelines. In the pipeline that needs to be connected, variously install a piece of flange, low pressure pipeline can use silk-joined flange, more than 4kg pressure use welding flange. The gasket is added between the two pieces of flanges and then bolted tightly. Flanges for different pressures have different thicknesses and use different bolts.
| Standards | ANSI, JIS, DIN, EN1092-1, UNI, BS4504, SABS1123, AS2129, GOST-12820 |
| Dimension | ANSI B 16.5, BS 1560. BS 10, IS 6392, B-2.1 NPT, API, DIN, JIS. MSS SP 44 |
| 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 |
| Class | 150#, 300#, 400 #, 600#, 900#, 1500# & 2500# |
| Size | 1/2" NB TO 24" NB. |
| Wall Thickness | SCH.10, 20, 30, 40, 80, 120, 160, STD, XS, XXS. |
| 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 Flanges |
Carbon Steel Flanges Standards / Types And Pressure Class :
| ASME/ANSI B 16.5 | Threaded Flange, Ring Type Joint Flange, Blind Flange, Welding Neck Flange, Slip on Flange,High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B], Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Slip on Flange, Welding Neck Flange, Threaded Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
| BS 4504 SEC 3.1 | Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Blind Flange, Screwed Boss Flange, Lapped FlangeWelding Neck Flange, Socket Welding Flange, Slip-On Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Blind Flange, Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange |
| TABLE | D, E, F, H |
Forged Carbon Steel Flanges


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