Stainless Steel · Fittings · ASTM A815 WPS32750
Super Duplex 2507 Stainless Steel Fittings
In short: Super duplex 2507 butt-weld fittings to ASTM A815 WPS32750, and forged fittings to A182 F53, complete seawater and firewater systems.
- S32750
- UNS number
- 7.8
- density, g/cm³
- 3.1 / 3.2
- EN 10204 certificates
- 6
- Super Duplex 2507 product forms
Why this combination
Why Super Duplex 2507 in fittings
Firewater and seawater networks are fitting-intensive; matching 2507 avoids weak points at elbows and tees.
Over-alloyed super duplex filler keeps welds as resistant as the base metal.
Specification
How to specify Super Duplex 2507 fittings
Butt-weld ½" – 48" (larger fabricated to order) in schedules matching the pipe; socket-weld and threaded ⅛" – 4" in Class 2000, 3000, 6000 and 9000
- Specification
- ASTM A815 WPS32750
- UNS
- S32750
- EN / W.Nr.
- 1.4410
- Butt-weld
- A815 WPS32750
- Forged
- A182 F53
Sizes and weights
Super Duplex 2507 fittings sizes, weighed at 7.8 g/cm³
Other sizes on request. For general fittings information, such as manufacturing routes and end finishes, see the fittings guide.
Butt-weld ½" – 48" (larger fabricated to order) in schedules matching the pipe; socket-weld and threaded ⅛" – 4" in Class 2000, 3000, 6000 and 9000
Chemistry
Super Duplex 2507 composition
- UNS
- S32750
- EN / W.Nr.
- 1.4410 · X2CrNiMoN25-7-4
- Density
- 7.8 g/cm³
- PREN
- ≥ 40 (typically 41 – 43)
| Element | Limit, % | Why it matters |
|---|---|---|
| C | 0.030 max | |
| Mn | 1.20 max | |
| P | 0.035 max | |
| S | 0.020 max | |
| Si | 0.80 max | |
| Cr | 24.0 – 26.0 | |
| Ni | 6.0 – 8.0 | |
| Mo | 3.0 – 5.0 | |
| Cu | 0.50 max | |
| N | 0.24 – 0.32 |
Limits per ASTM A240 (S32750); other product forms and specifications differ slightly. Your order's specification and edition govern.
Questions
About Super Duplex 2507 fittings
Which fittings match 2507 pipe?
A815 WPS32750 butt-weld and A182 F53 forged fittings.
Are fittings tested like the pipe?
Yes, ferrite, impact and G48 tests are commonly applied.
From enquiry to dispatch
How a Super Duplex 2507 fittings order runs
- 01 EnquiryGrade, specification, size, quantity
- 02 ReviewChecked against your standard
- 03 InspectPMI, dimensions, TPI if required
- 04 CertifyEN 10204 3.1 / 3.2, heat traceable
- 05 ShipPacked and documented for the destination
Need Super Duplex 2507 fittings?
Send size, quantity, specification and destination. We reply with availability, certificates and delivery.