1.4410 Super Duplex Flange EN 1092-1 Manufacturer
We are a professional manufacturer of 1.4410 Weld Neck Flanges in China
1.4410 Weld Neck Flanges are manufactured from Super Duplex Stainless Steel 1.4410, also known as UNS S32750 or EN X2CrNiMoN25-7-4. This high-performance alloy is widely recognized for its exceptional corrosion resistance, high strength, and long service life in aggressive environments such as offshore, chemical processing, and marine industries.
Super Duplex 1.4410 Flanges Character
- Material Strength – 1.4410 combines the benefits of austenitic and ferritic stainless steels, offering double the yield strength of conventional stainless grades.
- Excellent Corrosion Resistance – Outstanding resistance to pitting, crevice corrosion, and chloride stress corrosion cracking.
- High Toughness – Maintains toughness and ductility even at low temperatures.
- Long-Term Durability – Suitable for harsh seawater and chemical processing conditions.
EN 1092-1 Weld Neck Flanges 1.4410
Weld Neck Flanges (WN) to EN 1092-1 are designed with a long tapered hub for smooth stress distribution, making them ideal for high-pressure and high-temperature piping systems. In Super Duplex 1.4410, these flanges are perfect for critical applications where strength and corrosion resistance are equally important.
Available Standards & Sizes of 1.4410 flange
- Standards: EN 1092-1, ASME B16.5, ASME B16.47, DIN standards
- Pressure Ratings: PN 10 to PN 400
- Sizes: DN 15 to DN 2000 (custom sizes available)
1.4410 Material Specification
Material Name: Super Duplex Stainless Steel
EN Designation: 1.4410
UNS Number: S32750
Common Trade Name: SAF 2507
1.4410 Flange Chemical Composition (%) (Typical according to EN 10088-3)
| Element | Percentage (%) |
|---|---|
| C (Carbon) | ≤ 0.030 |
| Si (Silicon) | ≤ 0.80 |
| Mn (Manganese) | ≤ 1.20 |
| P (Phosphorus) | ≤ 0.035 |
| S (Sulfur) | ≤ 0.020 |
| Cr (Chromium) | 24.0 – 26.0 |
| Mo (Molybdenum) | 3.0 – 5.0 |
| Ni (Nickel) | 6.0 – 8.0 |
| N (Nitrogen) | 0.24 – 0.32 |
| Fe (Iron) | Balance |
1.4410 Mechanical Properties (at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (Rm) | ≥ 800 MPa |
| Yield Strength (Rp0.2) | ≥ 550 MPa |
| Elongation (A5) | ≥ 15% |
| Hardness (HB) | ≤ 290 HB |
Corrosion Resistance
- Excellent resistance to pitting and crevice corrosion in chloride-containing environments.
- PREN (Pitting Resistance Equivalent Number) > 40.
- Superior resistance to stress corrosion cracking (SCC) compared to austenitic stainless steels.
Applications
Flanges, fittings, and valves (EN 1092-1, ASME B16.5, B16.47)
Offshore oil & gas equipment
Chemical processing industries
Heat exchangers
Pressure vessels
Why Choose Our 1.4410 Super Duplex Flanges?
We manufacture and supply precision-engineered 1.4410 Weld Neck Flanges that comply with EN 1092-1 and other international standards. Our products undergo strict quality control, non-destructive testing (NDT), and are delivered with full material test certificates (EN 10204 3.1 / 3.2).
