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Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.

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Super Duplex 2507 Sheet & Plate

Super Duplex 2507 Sheet & Plate
Design Standards: ASTM A240, ASME SA240, EN 10088-2
Material Grade: Super Duplex 2507 (UNS S32750 / 1.4410)
Alloy Category: Super Duplex (25% Cr, 7% Ni, 4% Mo)
Strength Profile: Extreme Tensile & Yield Strength
Thickness Range: 0.3 mm to 100 mm
Surface Finish: No.1 (HRAP), 2B, BA, No.4, Mirror
Corrosion Index: PREn ≥ 42.5 (Maximum Localized Resistance)
Core Applications: Offshore Oil & Gas, Desalination, Marine, FGD Systems
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Super Duplex 2507 Sheet & Plate (UNS S32750) represents the pinnacle of high-performance stainless steel, specifically engineered for service in highly corrosive environments where extreme mechanical strength is required. This 25% chromium alloy features a balanced ferritic-austenitic microstructure, providing significantly higher load-bearing capacity than standard duplex or 300-series stainless steels. Grade 2507 is the industry standard for subsea oil and gas applications, offering near-immunity to chloride-induced stress corrosion cracking and exceptional durability in high-pressure systems.

Produced in strict adherence to ASTM A240 and ASME SA240, our Super Duplex 2507 plates boast a Pitting Resistance Equivalent Number (PREn) exceeding 42.5. This is achieved through high concentrations of molybdenum and nitrogen, ensuring the material remains unaffected by localized pitting or crevice corrosion in seawater and aggressive chemical media. Whether utilized in desalination plants, flue gas desulfurization (FGD) scrubbers, or complex marine engineering projects, these sheets provide the thermal efficiency, weight savings, and long-term structural integrity necessary for critical infrastructure.



Super Duplex 2507 Sheet & Plate Features

  • » Maximum Pitting Resistance: With a PREn (Pitting Resistance Equivalent Number) of 42.5 or higher, 2507 provides superior protection against localized attack in high-chloride and warm seawater environments.
  • » Extreme Mechanical Strength: Features significantly higher yield and tensile strength compared to standard austenitic steels, allowing for massive weight savings through reduced plate thickness.
  • » Immunity to Stress Corrosion Cracking: The high chromium, molybdenum, and nitrogen content provides near-immunity to chloride-induced SCC, essential for deep-sea oil extraction equipment.
  • » Exceptional Erosion & Fatigue Strength: The high hardness of the Super Duplex microstructure resists erosion-corrosion and fatigue, even in high-velocity fluid streams and cyclic loading conditions.
  • » Enhanced Thermal Conductivity: Offers better heat transfer efficiency than austenitic grades, combined with a low coefficient of thermal expansion that reduces thermal stress in welded components.
  • » Versatile Weldability: Can be welded using standard fusion methods (SMAW, GTAW, PAW); when using over-alloyed fillers, it maintains full corrosion resistance in the heat-affected zone (HAZ).
  • » Low Temperature Performance: Maintains excellent impact strength and toughness even at sub-zero temperatures, making it suitable for Arctic and cryogenic-adjacent offshore environments.
  • » Cost-Effective Lifecycle: While a premium alloy, its durability in extreme conditions significantly extends equipment service life and reduces maintenance-driven downtime.

Super Duplex 2507 Sheet & Plate Specification

Standard Specs

  • ASTM: A240 / A240M
  • ASME: SA240 / SA240M
  • UNS Number: S32750
  • Werkstoff No: 1.4410

Chemical Profile

  • Chromium (Cr): 24.0% – 26.0%
  • Nickel (Ni): 6.0% – 8.0%
  • Molybdenum (Mo): 3.0% – 5.0%
  • Nitrogen (N): 0.24% – 0.32%

Mechanical Data

  • Tensile Strength: 795 MPa (Min)
  • Yield Strength: 550 MPa (Min)
  • Elongation: 15% (Min)
  • Hardness: 32 HRC / 310 HBW Max

Size Range

  • Thickness: 0.3mm to 100mm
  • Width: 1000mm to 3000mm
  • Length: 2000mm to 12000mm
  • Forms: Plates, Sheets, Coils, Foils

Corrosion Specs

  • PREn Value: ≥ 42.5
  • Microstructure: 50/50 Austenite-Ferrite
  • Service Temp: -50°C to 250°C
  • Magnetic: Strongly Magnetic

Processing & QA

  • Testing: ASTM G48, PMI, UT, Charpy V-Notch
  • Cutting: Waterjet, High-Def Plasma, Laser
  • Finishes: 2B, BA, No.1, No.4, Mirror
  • Cert: EN 10204 3.1 & 3.2 MTC

Duplex Steel 329 Sheet & Plate Detailed Specifications

Property Specification
Specifications ASTM A240 / ASME SA240
Width 1000mm / 1219mm /1250mm / 1500mm / 2000mm
Length 2000 mm / 2440 mm / 2500 mm / 3000 mm / 6000 mm
Thickness 0.1mm to 12 mm Thk
Hardness Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Finish Hot rolled plate (HR), Cold rolled sheet (CR).
Form Coils, Foils, Rolls, Plain Sheet, Strip, Flats, Blank (Circle), Ring (Flange) etc.

Duplex Steel 329 Sheet & Plate Chemical Composition

Element Composition %
C (Carbon) Max 0.03
Cr (Chromium) 24.0 - 26.0
Ni (Nickel) 6.0 - 8.0
Mo (Molybdenum) 3.0 - 4.0
Fe (Iron) Balance
Cu (Copper) Max 0.5
Mn (Manganese) 1.0 - 2.0
Si (Silicon) 0.5
P (Phosphorus) Max 0.03
S (Sulfur) Max 0.02

Duplex Steel 329 Sheet & Plate Equivalent Grades

Standard Equivalent Grade
UNS S32750 (USA) 1.4410 (Germany)
EN 1.4410 (Europe) JIS UNS S32750 (Japan)

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA
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