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Stainless Steel :
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347,
347H, 904L
Duplex & Super Duplex Steel :
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel :
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42,
F46, F52, F60, F65, F706
Low Temperature Carbon Steel : ASTM A350, LF2, LF3
Alloy Steel :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Copper Alloy Steel : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy :
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No.
N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No.
N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS
No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20
(UNS No. N08020)
River Steel & Alloys is a well-known stainless steel flanges manufacturers and SS flange supplier in Mumbai, we provide high quality stainless steel flange raw material in different sizes, dimension and thickness according to the needs and satisfaction of the customers. ASTM A182 flanges covers the following material austenitic stainless steel, duplex stainless steel and super duplex stainless steel
There are various types of flanges and some of them are given below:
Stainless steel blind flanges is a solid flange. The purpose of the
flange is to block off the pipe section or a nozzle on a vessel that is not used. It has
mounting holes around the perimeter and the gasket sealing rings are machined into the
mating surface. Blind flange is placed between the two open flanges, which helps to
stops the flow through a pipe.
stainless steel slip on flanges are manufactured with an inside
diameter that is slightly bigger than the pipe outside diameter. It attachments are
connected to the pipe through fillet weld at the top and bottom of the flange. It is
typically provided with a raised or flat face.
SS weld neck flange has two type of a flange design. The regular type
is used with pipes and long type is unsuitable for pipes and it is used in process
plant. It contains of a circular fitting with a peeking rim around the
circumference. Weld neck flange are suitable for use in hostile environments that have
extremes of temperature, pressure or other sources of stress.
Stainless steel socket weld flanges is typically used on smaller sizes
of high pressure pipes. It is attached by inserting the pipe into the socket end and by
applying fillet weld around the top. This allows a smooth bore and better flow of the
fluid or gas inside of the pipe.
Stainless steel forged flanges are used as a connection component for
pipes, valves, pumps and other equipment to form a pipework system. To make the
connectionflanges are usually welded onto pipes or screwed onto a threaded pipe end and
then joined with bolts.
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Pressure Ratings | Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Types of Flanges | Weld neck Flanges (WNRF), Slip-on Flanges (SORF), Blind Flanges (BLRF),
Lap Joint Flanges (SOLJ), Socket-weld Flanges (SWRF), Screwed (Threaded) Flanges, Long weld neck Flanges (LWNRF), Spectacle Blind Flanges, Spacer & Blind Flanges, Ring Type Joint Flanges (RTJ), Reducing Flanges, Raised Face (RF) Flanges, Orifice Flanges, Large Diameter Flanges, Custom Flanges, Drawing Flanges, Forged Flanges, Plate Flanges, Flat Face Flanges, etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Coating/Surface Treatment | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
| Value Added Services | CNC Machining, Customised Flanges |
| ASME/ANSI B 16.36 | Welding Neck Flange, Slip on Flange, Threaded Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.5 | Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| 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] | Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange |
| TABLE | D, E, F, H |
| 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 |