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Duplex Steel Flanges

Supply forms include: plates, strips, bars, wires, forgings, bare rods, welding materials, flanges, etc., which can be processed according to drawings

We manufacture and supply a full range of Duplex stainless steel flanges, primarily in 2205 (UNS S32205) and 2507 (UNS S32750) grades. These flanges offer excellent resistance to pitting, crevice corrosion, and chloride stress corrosion, with high mechanical strength and good weldability.

Types: Weld neck, slip-on, blind, socket weld, threaded, lap joint
Standards: ASTM A182 F51 / F53, ASME B16.5, EN 1092-1, DIN, JIS
Size range: 1/2” – 48” | Pressure ratings: Class 150 – 2500
Machining: CNC turning, facing, drilling, custom bore & raised face

Ideal for chemical processing, offshore systems, marine piping, and pressure vessels. We support OEM machining, non-standard customization, and third-party inspection.
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