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Ganpat Metal manufactures and supplies SS 304 flanges in India as per ASTM A182 / ASME SA182 Grade F304. We offer forged flanges in different sizes, pressure classes, face configurations and types for industrial piping and equipment.
| Parameter | Details |
|---|---|
| Material Specification | ASTM A182 / ASME SA182 Grade F304 / F304L |
| Plate Specification | ASTM A240 / ASME SA240 Grade 304 / 304L |
| Size Range | ½" (15 NB) to 48" (1200 NB) |
| Standards | ANSI, ASME, DIN, EN, BS, JIS, AWWA, MSS-SP44 |
| Dimensional Standards | ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS10, EN-1092, DIN, AS2129, AS4087 |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Reducing, Spectacle Blind |
| Face Types | RF, FF, RTJ, LMF, SMF, LJF |
| Manufacturing | Forged, solution annealed, heat treated and precision machined |
| Inspection | Chemical analysis, mechanical testing, dimensional inspection, PMI and hydrostatic testing if required |
| Documentation | EN 10204 3.1 / 3.2 MTC and third-party inspection reports as required |
| Standard | Available Configuration / Range |
|---|---|
| ASME B16.5 | ½" to 24" |
| ASME B16.47 Series A & B | Large-diameter flanges |
| ASME B16.48 | Line blanks |
| BS4504 | PN-rated flanges |
| BS10 | Table-based flange dimensions |
| EN 1092 | PN-rated European flanges |
| DIN | DIN-standard configurations |
| AS2129 | Australian standard |
| AS4087 | Australian standard |
| Pressure Class | Rating |
|---|---|
| ASME Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| PN Rating | PN6, PN10, PN16, PN25, PN40, PN64 |
| Grade | UNS | Werkstoff No. | EN | JIS | BS |
|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | X5CrNi18-10 | SUS 304 | 304S31 |
| SS 304L | S30403 | 1.4307 | X2CrNi18-9 | SUS 304L | 304S11 |
| Grade | C Max. | Mn Max. | Si Max. | P Max. | S Max. | Cr | Ni | N Max. |
|---|---|---|---|---|---|---|---|---|
| SS 304 / UNS S30400 | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0–20.0 | 8.0–10.5 | 0.10 |
| SS 304L / UNS S30403 | 0.03 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0–20.0 | 8.0–12.0 | 0.10 |
| Grade | Tensile Strength Min. | Yield Strength 0.2% Min. | Elongation Min. | Hardness |
|---|---|---|---|---|
| SS 304 / A182 F304 | 515 MPa | 205 MPa | 40% | 92 HRB / 201 HB |
| SS 304L / A182 F304L | 485 MPa | 170 MPa | 40% | 92 HRB / 201 HB |
| Parameter | Details |
|---|---|
| Nominal Size | ½" to 48" |
| Nominal Bore | 15 NB to 1200 NB |
| ASME B16.5 | ½" to 24" |
| Large Diameter | Up to 48" as applicable |
| Pressure Classes | 150# to 2500# |
| PN Ratings | PN6 to PN64 |
| NPS | NB | Flange OD (mm) | Thickness (mm) | Raised Face (mm) | Hub OD (mm) | Hub Length (mm) | Bore (mm) | Bolt Circle (mm) | Bolts |
|---|---|---|---|---|---|---|---|---|---|
| ½" | 15 | 88.9 | 11.2 | 34.9 | 30.2 | 47.6 | 22.4 | 60.5 | 4 |
| 1" | 25 | 107.9 | 14.2 | 50.8 | 49.3 | 55.6 | 34.5 | 79.4 | 4 |
| 2" | 50 | 152.4 | 19.1 | 91.9 | 77.8 | 63.5 | 62.0 | 120.7 | 4 |
| 4" | 100 | 228.6 | 23.9 | 157.2 | 134.9 | 76.2 | 116.1 | 190.5 | 8 |
| 6" | 150 | 279.4 | 25.4 | 215.9 | 193.7 | 88.9 | 170.7 | 241.3 | 8 |
| 8" | 200 | 342.9 | 28.4 | 269.9 | 247.7 | 101.6 | 221.5 | 298.5 | 8 |
| 10" | 250 | 406.4 | 30.2 | 323.9 | 304.8 | 101.6 | 276.4 | 362.0 | 12 |
| 12" | 300 | 482.6 | 31.8 | 381.0 | 365.1 | 114.3 | 327.0 | 431.8 | 12 |
| 16" | 400 | 596.9 | 36.6 | 469.9 | 457.2 | 139.7 | 411.2 | 539.8 | 16 |
| 20" | 500 | 698.5 | 42.9 | 584.2 | 558.8 | 152.4 | 514.4 | 635.0 | 20 |
| 24" | 600 | 812.8 | 47.8 | 692.2 | 663.4 | — | — | — | — |
| Size | NB | Weight (kg) | Weight (lb) |
|---|---|---|---|
| ½" | 15 | 0.4 | 0.9 |
| ¾" | 20 | 0.7 | 1.5 |
| 1" | 25 | 0.8 | 1.8 |
| 1¼" | 32 | 1.2 | 2.6 |
| 1½" | 40 | 1.5 | 3.3 |
| 2" | 50 | 2.3 | 5.1 |
| 2½" | 65 | 3.7 | 8.1 |
| 3" | 80 | 4.1 | 9.0 |
| 4" | 100 | 5.9 | 13.0 |
| 6" | 150 | 8.4 | 18.5 |
| 8" | 200 | 13.0 | 28.6 |
| 10" | 250 | 18.0 | 39.5 |
| 12" | 300 | 29.0 | 64.0 |
| 14" | 350 | 39.0 | 86.0 |
| 16" | 400 | 47.0 | 103.0 |
| 18" | 450 | 57.0 | 126.0 |
| 20" | 500 | 76.0 | 167.0 |
Select Flange options below and click the "Calculate Weight" button to reveal exact weight.
Tapered hub design for high-pressure and cyclic piping service.
Fitted over the pipe and welded inside and outside.
Used to close pipe ends, valves and equipment connections.
Supplied with pressure-tapping provisions for flow measurement.
Used mainly for small-bore piping connections.
Used with stub ends where flange rotation is required.
Used for specified threaded pipe connections without welding.
Used for positive pipeline isolation.
Used for connections between different pipe sizes.
Ganpat Metal supplies SS 304 flanges with forging, solution annealing, heat treatment and precision machining according to the required specification.
Ganpat Metal supplies SS 304 / ASTM A182 F304 flanges in different sizes, pressure classes, types and face configurations. Custom specifications, special end preparations and inspection requirements can be supplied as specified.
Share your size, flange type, pressure class, face type, applicable standard, quantity and documentation requirements to receive a quotation for SS 304 flanges.
For other stainless steel grades, Ganpat Metal also supplies SS 304L, SS 316 and SS 316L flanges. See the complete Stainless Steel Flanges range for related grade options.
