Super Duplex 2507 Threaded FlangeASTM A182 · ASME B16.5 · Manufacturer, stockist & exporter, India
UNS S32750 · W.Nr 1.4410 · THD
A Super Duplex 2507 threaded flange is a flange with a tapered internal thread that screws onto threaded pipe, made from Super Duplex 2507 to ASTM A182 F53. Use a threaded flange where welding is not allowed — for example in explosive areas — on small-bore, low-pressure lines. Threads are NPT to ASME B1.20.1.
- 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 2507 Threaded Flange?
- What it is
- A flange with a tapered internal thread that screws onto threaded pipe
- Material
- ASTM A182 F53
- Dimensions
- ASME B16.5 · ASME B1.20.1
- Grade
- Super Duplex 2507 · UNS S32750
- Best at
- Seawater and high-chloride service where strength also matters
Super Duplex 2507 Threaded Flange Specification
| Product | Super Duplex 2507 Threaded Flange |
|---|---|
| Material standard | ASTM A182 F53 |
| Dimensional standard | ASME B16.5 · ASME B1.20.1 |
| 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 Threaded Flange
Use a threaded flange where welding is not allowed — for example in explosive areas — on small-bore, low-pressure lines. Threads are NPT to ASME B1.20.1.
- NPT threads to ASME B1.20.1
- Not for cyclic or high-temperature service
- Seal-welding is sometimes added after make-up
Super Duplex 2507 Threaded Flange Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 24.0 – 26.0 |
| Nickel | 6.0 – 8.0 |
| Molybdenum | 3.0 – 5.0 |
| Nitrogen | 0.24 – 0.32 |
| Copper | 0.50 max |
| Carbon | 0.030 max |
| Manganese | 1.20 max |
| Silicon | 0.80 max |
Super Duplex 2507 Threaded Flange Mechanical Properties
| Solution-annealed plate & sheet | Value |
|---|---|
| Tensile strength | 795 MPa · 116 ksi |
| Yield strength 0.2% | 550 MPa · 80 ksi |
| Elongation | 15% |
| Hardness | 310 HB max |
Full chemistry, properties and equivalents are on the Super Duplex 2507 grade page.
Other Super Duplex 2507 flanges
Super Duplex 2507 Threaded Flanges for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSuper Duplex 2507 Threaded 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 2507 Threaded Flange — questions buyers ask
Can threaded flanges be used in high-pressure service?
They are rated like other flanges in their class, but threaded joints are not recommended for cyclic, high-temperature or highly corrosive service.
Which standard covers Super Duplex 2507 threaded flanges?
The material is ASTM A182 F53; dimensions follow ASME B16.5 · ASME B1.20.1. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Super Duplex 2507 threaded 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 2507 threaded flanges to NACE MR0175?
Yes. Super Duplex 2507 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