Super Duplex S32760 Slip-on FlangeASTM A182 · ASME B16.5 · Manufacturer, stockist & exporter, India
UNS S32760 · W.Nr 1.4501 · SORF
A Super Duplex S32760 slip-on flange is a flange that slides over the pipe and is fillet-welded inside and outside, made from Super Duplex S32760 to ASTM A182 F55. Choose a slip-on flange for lower-pressure lines where easy alignment and lower cost matter more than fatigue strength. It needs less precise pipe cutting than a weld neck.
- ASTM A182
- ASME B16.5
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is a Super Duplex S32760 Slip-on Flange?
- What it is
- A flange that slides over the pipe and is fillet-welded inside and outside
- Material
- ASTM A182 F55
- Dimensions
- ASME B16.5 · EN 1092-1
- Grade
- Super Duplex S32760 · UNS S32760
- Best at
- Seawater firewater, injection and offshore piping
Super Duplex S32760 Slip-on Flange Specification
| Product | Super Duplex S32760 Slip-on Flange |
|---|---|
| Material standard | ASTM A182 F55 |
| Dimensional standard | ASME B16.5 · EN 1092-1 |
| Sizes | ½" – 24" (ASME B16.5) · 26" – 60" (ASME B16.47) |
| Pressure class | Class 150, 300, 400, 600, 900, 1500, 2500 · PN 6 – PN 100 |
| Facing | RF · FF · RTJ · tongue & groove |
| Bore | To match pipe schedule (state on order) |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Slip-on Flange
Choose a slip-on flange for lower-pressure lines where easy alignment and lower cost matter more than fatigue strength. It needs less precise pipe cutting than a weld neck.
- Two fillet welds: one at the hub, one inside the bore
- Lower fatigue life than a weld neck in cyclic service
- Available with a hub or as a plate (hubless) design
More on choosing: Slip-on flange guide.
Super Duplex S32760 Slip-on Flange: Why S32760 for slip-on flanges
Choose a slip-on flange for lower-pressure lines where easy alignment and lower cost matter more than fatigue strength. It needs less precise pipe cutting than a weld neck. In Super Duplex S32760, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Duplex flanges give stainless corrosion resistance with roughly twice the strength of 316L. Super Duplex S32760 is picked for seawater firewater, injection and offshore piping. |
|---|---|
| Typical service | Offshore — Firewater and seawater piping. |
| B16.5 material group | 2.8 |
| Bolting | B7 (coated), B8M or duplex studs, as the project specifies |
| Welding to carbon steel | ER2209 or ER309L(Mo) is used when joining it to carbon steel, under a qualified WPS |
| Matching filler | ER2594 · Zeron 100X |
| Sour service | Listed in NACE MR0175 / ISO 15156-3 within its limits — state it on the order |
Super Duplex S32760 Slip-on Flange Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 24.0 – 26.0 |
| Nickel | 6.0 – 8.0 |
| Molybdenum | 3.0 – 4.0 |
| Nitrogen | 0.20 – 0.30 |
| Copper | 0.50 – 1.00 |
| Tungsten | 0.50 – 1.00 |
| Carbon | 0.030 max |
| Manganese | 1.00 max |
Super Duplex S32760 Slip-on Flange Mechanical Properties
| Solution-annealed plate | Value |
|---|---|
| Tensile strength | 750 MPa · 109 ksi |
| Yield strength 0.2% | 550 MPa · 80 ksi |
| Elongation | 25% |
| Hardness | 270 HB max |
Full chemistry, properties and equivalents are on the Super Duplex S32760 grade page.
Other Super Duplex S32760 flanges
Super Duplex S32760 Slip-on Flanges for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSuper Duplex S32760 Slip-on Flange dimensions — ASME B16.5 Class 150 & 300
Outside diameter, thickness and bolting are set by size and class. Values in mm; thickness excludes the 1.6 mm raised face.
| NPS | Cl 150 OD | Cl 150 thickness | Cl 150 bolt circle | Cl 150 bolts | Cl 300 OD | Cl 300 thickness | Cl 300 bolt circle | Cl 300 bolts |
|---|---|---|---|---|---|---|---|---|
| ½" | 90 | 9.6 | 60.3 | 4 × ½" | 95 | 12.7 | 66.7 | 4 × ½" |
| 1" | 110 | 12.7 | 79.4 | 4 × ½" | 125 | 15.9 | 88.9 | 4 × ⅝" |
| 1½" | 125 | 15.9 | 98.4 | 4 × ½" | 155 | 19.1 | 114.3 | 4 × ¾" |
| 2" | 150 | 17.5 | 120.7 | 4 × ⅝" | 165 | 20.7 | 127.0 | 8 × ⅝" |
| 3" | 190 | 22.3 | 152.4 | 4 × ⅝" | 210 | 27.0 | 168.3 | 8 × ¾" |
| 4" | 230 | 22.3 | 190.5 | 8 × ⅝" | 255 | 30.2 | 200.0 | 8 × ¾" |
| 6" | 280 | 23.9 | 241.3 | 8 × ¾" | 320 | 35.0 | 269.9 | 12 × ¾" |
| 8" | 345 | 27.0 | 298.5 | 8 × ¾" | 380 | 39.7 | 330.2 | 12 × ⅞" |
| 10" | 405 | 28.6 | 362.0 | 12 × ⅞" | 445 | 46.1 | 387.4 | 16 × 1" |
| 12" | 485 | 30.2 | 431.8 | 12 × ⅞" | 520 | 49.3 | 450.8 | 16 × 1⅛" |
Full chart: ASME B16.5 flange dimensions.
Super Duplex S32760 Slip-on Flange — questions buyers ask
Slip-on or weld neck — which is stronger?
The weld neck. A slip-on flange is fine for moderate pressure and temperature, but in cyclic or severe service engineers specify weld neck flanges.
What pressure rating does a Super Duplex S32760 slip-on flange have?
It depends on class and temperature. Super Duplex S32760 forgings are in ASME B16.5 material group 2.8; read your class column in that group's table at the design temperature.
Can Super Duplex S32760 slip-on flanges be welded to carbon steel?
Yes — ER2209 or ER309L(Mo) is used when joining it to carbon steel, under a qualified WPS.
Which standard covers Super Duplex S32760 slip-on flanges?
The material is ASTM A182 F55; dimensions follow ASME B16.5 · EN 1092-1. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Super Duplex S32760 slip-on flange?
The alloy price, the size and pressure class, quantity, and the testing and documents required. Send your list and we quote the same working day.
Can you supply Super Duplex S32760 slip-on flanges to NACE MR0175?
Yes. Super Duplex S32760 is listed in NACE MR0175 / ISO 15156-3 within its limits; state NACE compliance on the order and it is confirmed on the certificate.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026