HOME → Our Products → Flanges → Stainless Steel Products → 904L Flanges Manufacturer
Our Stainless Steel 904L Weld Neck Flanges is a 12 % chromium martensitic stainless steel plate that can be heat treated to obtain a wide range of mechanical properties. 904L Stainless Steel Flanges (UNS N08904) are used in several applications, such as for Seawater cooling machinery, Chemical handling for phosphoric, acetic and sulphuric acids, Heat exchangers, Condenser tubes, Gas washing, Control and instrumentation, and so on. These flanges have determined service temperatures of 824 degree F (450 degree C). They are as well used for oil refinery components, wiring in electrostatic precipitators, and more. In addition, full annealing must trail any hot work to re-acquire maximum corrosion resistance and ductility.
These Stainless Steel 904L Nippo Flanges are martensitic stainless steel that provides good corrosion resistance plus high strength and hardness. A wide range of properties can be developed in our Stainless Steel 904L Spectacle Blind Flanges with different heat treatments and by means of ultimate tensile strengths. Due to its excellent hardenability, these SS 904L Orifice Flanges are capable of being hardened depending upon carbon content and section size.
Exposure of Stainless Steel 904L Ring Joint Type Flanges to chlorides in everyday type activities is generally satisfactory when proper cleaning is performed after exposure to use. A major use for these Stainless Steel 904L Lap Joint Flanges of heat treatable stainless steels is in cutlery. Our SS 904L Threaded Flanges is tough and form draggy chips with heavy build-up. These SS 904L Socket Weld Flanges display maximum corrosion resistance when it’s been hardened, tempered, and then polished. Our UNS N08904 Stainless Steel Blind Flanges are widely used to close the tail of pipe of a pressure vessel, as they are designed to retain pressure in a high-pressure area, and are resistant to reducing acids like sulphuric acids in petrochemical plants and oil refineries. Our ASTM B182 Stainless Steel Lap Joint Flanges that are super austenitic flanges, resistant to chloride stress corrosion cracking. They are a cost effective alternative to transport acidic slurries. These SS 904L Threaded Flanges are oxidation and heat resistant.
These Stainless Steel 904L Blind Raised Flanges are generally used for applications which involve mild corrosion, high strength, and heat resistance. Our SS 904L Slip On Raised Flanges are less resistant to corrosion when compared to that of austenitic grades. We are a known producer of SS 904L Flanges, which is irresistible in all environments. We at Mahavir Metals India offers a wide range of Stainless Steel ASTM A182 904L Flanges such as SS 904L Slip On Flanges, SS 904L Weld Neck Flanges, SS 904L Socket Weld Flanges, SS 904L Blind Flanges, SS 904L Orifice Flanges, SS 904L Spectacle Blind Flanges, SS 904L Screwed / Threaded Flanges, SS 904L Reducing Flanges, SS 904L Ring Type Joint Flanges (RTJ) etc.
Specifications : ASTM A182 & ASME SA182
Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
904L | min. | – | – | – | – | – | 19.0 | 4.00 | 23.00 | 0.10 |
max. | 0.20 | 2.00 | 1.00 | 0.045 | 0.035 | 23.0 | 5.00 | 28.00 | 0.25 |
Pipe Sizes* | O.D. (in.) | Schedule (40) Pipe Wall Thickness (in.)** | |
Sch.40 | |||
Wall (in) | I.D. (in) | ||
1/8″ | 0.41 od | 0.07 in | 0.269 id |
Weight (lbs/ft.) | Steel | 0.247 lbs/ft | |
Stainless | |||
Aluminum | |||
1/4″ | 0.54 od | 0.090 in | 0.364 id |
Weight (lbs/ft.) | Steel | 0.429 lbs/ft | |
Stainless | |||
Aluminum | 0.147 lbs/ft | ||
3/8″ | 0.675 od | 0.091 in | 0.493 id |
Weight (lbs/ft.) | Steel | 0.570 lbs/ft | |
Stainless | |||
Aluminum | 0.196 lbs/ft | ||
1/2″ | 0.840 od | 0.109 in | 0.622 id |
Weight (lbs/ft.) | Steel | 0.850 lbs/ft | |
Stainless | |||
Aluminum | 0.294 lbs/ft | ||
3/4″ | 1.050 od | 0.113 in | 0.824 id |
Weight (lbs/ft.) | Steel | 1.13 lbs/ft | |
Stainless | |||
Aluminum | 0.391 | ||
1″ | 1.315 od | 0.133 in | 1.049 id |
Weight (lbs/ft.) | Steel | 1.68 lbs/ft | |
Stainless | |||
Aluminum | 0.581 lbs/ft | ||
1-1/4″ | 1.66 od | 0.140 in | 1.380 id |
Weight (lbs/ft.) | Steel | 2.27 lbs/ft | |
Stainless | |||
Aluminum | 0.785 lbs/ft | ||
1-1/2″ | 1.90 od | 0.145 in | 1.610 id |
Weight (lbs/ft.) | Steel | 2.72 lbs/ft | |
Stainless | |||
Aluminum | 0.939 lbs/ft | ||
2″ | 2.375 od | 0.154 in | 2.067 id |
Weight (lbs/ft.) | Steel | 3.66 lbs/ft | |
Stainless | |||
Aluminum | 1.260 lbs/ft | ||
2-1/2″ | 2.875 od | 0.203 in | 2.469 id |
Weight (lbs/ft.) | Steel | 5.80 lbs/ft | |
Stainless | |||
Aluminum | 2.000 lbs/ft | ||
3″ | 3.50 od | 0.216 in | 3.068 id |
Weight (lbs/ft.) | Steel | 7.58 lbs/ft | |
Stainless | |||
Aluminum | 2.620 lbs/ft | ||
3-1/2″ | 4.00 od | 0.226 in | 3.550 id |
Weight (lbs/ft.) | Steel | 9.12 lbs/ft | |
Stainless | |||
Aluminum | 3.150 lbs/ft | ||
4″ | 4.50 od | 0.237 in | 4.026 id |
Weight (lbs/ft.) | Steel | 10.80 lbs/ft | |
Stainless | |||
Aluminum | 3.730 lbs/ft | ||
5″ | 5.563 od | 0.258 in | 5.047 id |
Weight (lbs/ft.) | Steel | 14.63 lbs/ft | |
Stainless | |||
Aluminum | 5.050 lbs/ft | ||
6″ | 6.625 od | 0.280 in | 6.065 id |
Weight (lbs/ft.) | Steel | 18.99 lbs/ft | |
Stainless | |||
Aluminum | 6.560 lbs/ft | ||
8″ | 8.625 od | 0.322 in | 7.981 id |
Weight (lbs/ft.) | Steel | 28.58 lbs/ft | |
Stainless | |||
Aluminum | 9.88 lbs/ft | ||
*Nominal sizes apply – Pipe Size is the generic Industry Size Standard for reference only **Tolerances may vary slightly from each manufacturer |
Products | Size | |
ASTM B182 SS 904L Slip-On Flanges | ASTM B182 SS 904L Threaded Flanges | Sizes 1/8″ – 36″ Raised Face or Flat Face |
ASTM B182 SS 904L Weld Neck Flanges | ASTM B182 SS 904L Socket Weld Flanges | |
ASTM B182 SS 904L Blind Flanges | ASTM B182 SS 904L Reducing Flanges | |
ASTM B182 SS 904L Lap Joint Flanges | ASTM B182 SS 904L Plate Flanges | |
ASTM B182 SS 904L Orifice Flanges | ASTM B182 SS 904L Forged Flanges | |
ASTM B182 SS 904L Ring Type Joint Flanges | ASTM B182 SS 904L Square Flanges |
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 |
ASME/ANSI B 16.36 | Welding Neck Flange, Slip on Flange, Threaded Flange |
PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
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 |
Stainless Steel 904L Flanges | Stainless Steel 904L EN 1092-1 Flanges |
Stainless Steel 904L BS 4504 Flanges | Stainless Steel 904L Forged Flanges |
Stainless Steel UNS N08904 Flanges | Stainless Steel 904L Slip on Flanges |
SS 904L Flat Flange Suppliers | ANSI 904L Stainless Steel Blind Flange |
SS 904L Weld Neck Flanges Dealer | SS 904L Socket weld Flanges Exporter |
SS 904L Long Weld Neck Flanges Stockholder | Steel 904L Threaded Flanges Distributors |
Stainless Steel SUS 904L Reducing Flanges | SS 904L Ring Type Joint Flanges Manufacturer |
Stainless Steel DIN 1.4539 Orifice Flange | Stainless Steel BS 904S11 Spectacle Blind Flanges |
Stainless Steel 904L WNRF Flange | Stainless 904L SORF Flanges |
ANSI B16.5 SS 904L RTJ Flanges | SS 904L Screwed Flanges Stockist |
ASTM B182 SS 904L Lap Joint Flanges | ASME SB182 SS 904L BLRF Flange |
Stainless Steel 904L Raised Face Flanges | 904L SS Nipoflange |
B182 SS 904L Square Flanges | ASME SB182 SS 904L SWRF Flange |
Steel 904L Tongue & Groove Flanges | SS 904L Male & Female Flanges |
Stainless Steel 904L DIN Flanges | SS 904L ASME B16.5 Flanges |
Nominal size [inches] |
Outside diameter [inches] |
Outside diameter [mm] |
Wall thickness [inches] |
Wall thickness [mm] |
Weight [lb/ft] |
Weight [kg/m] |
1/8 inches |
0.405 inches |
10.3 MM |
0.068 inches |
1.73 MM |
0.24 lb/ft |
0.37 kg/m |
1/4 inches |
0.540 inches |
13.7 MM |
0.088 inches |
2.24 MM |
0.42 lb/ft |
0.84 kg/m |
1/2 inches |
0.840 inches |
21.3 MM |
0.109 inches |
2.77 MM |
0.85 lb/ft |
1.27 kg/m |
3/4 inches |
1.050 inches |
26.7 MM |
0.113 inches |
2.87 MM |
1.13 lb/ft |
1.69 kg/m |
1 inches |
1.315 inches |
33.4 MM |
0.133 inches |
3.38 MM |
1.68 lb/ft |
2.50 kg/m |
1 1/4 inches |
1.660 inches |
42.2 MM |
0.140 inches |
3.56 MM |
2.27 lb/ft |
3.39 kg/m |
1 1/2 inches |
1.900 inches |
48.3 MM |
0.145 inches |
3.68 MM |
2.72 lb/ft |
4.05 kg/m |
2 inches |
2.375 inches |
60.3 MM |
0.154 inches |
3.91 MM |
3.65 lb/ft |
5.44 kg/m |
2 1/2 inches |
2.875 inches |
73.0 MM |
0.203 inches |
5.16 MM |
5.79 lb/ft |
8.63 kg/m |
3 inches |
3.500 inches |
88.9 MM |
0.216 inches |
5.49 MM |
7.58 lb/ft |
11.29 kg/m |
3 1/2 inches |
4.000 inches |
101.6 MM |
0.226 inches |
5.74 MM |
9.11 lb/ft |
13.57 kg/m |
4 inches |
4.500 inches |
114.3 MM |
0.237 inches |
6.02 MM |
10.79 lb/ft |
16.07 kg/m |
5 inches |
5.563 inches |
141.3 MM |
0.258 inches |
6.55 MM |
14.62 lb/ft |
21.77 kg/m |
6 inches |
6.625 inches |
168.3 MM |
0.280 inches |
7.11 MM |
18.97 lb/ft |
28.26 kg/m |
8 inches |
8.625 inches |
219.1 MM |
0.322 inches |
8.18 MM |
28.55 lb/ft |
42.55 kg/m |
10 inches |
10.750 inches |
273.0 MM |
0.365 inches |
9.27 MM |
40.48 lb/ft |
60.31 kg/m |
12 inches |
12.750 inches |
323.8 MM |
0.406 inches |
10.31 MM |
53.52 lb/ft |
79.73 kg/m |
14 inches |
14 inches |
355.6 MM |
0.375 inches |
11.13 MM |
54.57 lb/ft |
94.55 kg/m |
16 inches |
16 inches |
406.4 MM |
0.500 inches |
12.70 MM |
82.77 lb/ft |
123.30 kg/m |
18 inches |
18 inches |
457.0 MM |
0.562 inches |
14.27 MM |
104.67 lb/ft |
155.80 kg/m |
20 inch |
20 inch |
508.0 MM |
0.594 inch |
15.09 MM |
123.11 lb/ft |
183.42 kg/m |
24 inch |
24 inch |
610.0 MM |
0.688 inch |
17.48 MM |
171.29 lb/ft |
255.41 kg/m |
32 inch |
32 inch |
813.0 MM |
0.688 inch |
17.48 MM |
230.08 lb/ft |
342.91 kg/m |
Chemical Properties | |||||||||
Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
max 0.16 | 0.10-0.35 | 0.30-0.70 | 0.04 | 0.04 | – | – | – | – | – |