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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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ASTM A790 Super Duplex Stainless Steel 2507 Tubes

ASTM A790 Super Duplex Stainless Steel 2507 Tube
Sizes: 1/8" OD to 8" OD (3.18mm to 203.2mm)
WT (Thickness): 0.5mm to 12mm (Sch 5S to Sch 160)
Type: Seamless (ASTM A790), Welded (ASTM A790)
Standard: ASTM A790, ASME SA790
Length: Standard 6m, Cut-to-Length, Precision Pieces
Surface Finish: Solution Annealed, Pickled
Ends: Plain Ends, Beveled Ends
Origin: Global Stock: USA, Germany, Japan, India
goldenislands.com.sa

Golden Steel Material is a specialized Super Duplex 2507 (UNS S32750/S32760) Tubes Supplier in Saudi Arabia, engineered for the most extreme chloride-rich and high-temperature service environments. Super Duplex 2507 is a premium austenitic-ferritic stainless steel containing 25% Chromium, 4% Molybdenum, and 7% Nickel. Designed specifically to outperform standard Duplex 2205, this alloy delivers a PREN (Pitting Resistance Equivalent Number) exceeding 40, providing near-immunity to localized pitting, crevice corrosion, and stress-corrosion cracking (SCC) in aggressive marine and chemical environments.

As a premier Super Duplex 2507 seamless and welded tube stockist, we supply tubing manufactured to precise ASTM A790 and ASME SA790 specifications. The "Super" designation signifies this material’s ability to survive in environments that would cause catastrophic failure in lower-grade alloys, such as hot, stagnant seawater, acidified brine, and high-chloride industrial process streams. Every tube is supplied in a solution-annealed condition, ensuring the optimal balance of ferrite and austenite phases to maintain the mechanical integrity and corrosion resistance required for deep-sea oil & gas extraction and large-scale desalination units.

We serve as a trusted Super Duplex 2507 Tubes exporter in Saudi Arabia, providing critical infrastructure components for offshore platforms, high-pressure reverse osmosis (RO) systems, and aggressive chemical processing plants across the Jubail and Yanbu industrial clusters. Every order is supported by MTC EN 10204 3.1 certification and undergoes stringent quality protocols, including hydrostatic validation, eddy current testing, and PMI (Positive Material Identification). When your project demands the highest level of corrosion protection available in a structural alloy, our team delivers the technical-grade integrity needed to guarantee maximum service life and operational safety in the world’s most punishing conditions.



ASTM A790 Super Duplex Stainless Steel 2507 Tubes Features

  • » Certification: MTC EN 10204 3.1 & NABL certified
  • » Standards: Compliant with ASTM A790 & ASME SA790
  • » Extreme Pitting Resistance: PREN > 40 for near-immunity to pitting and crevice corrosion in warm seawater
  • » Superior Strength: Higher mechanical strength and hardness than standard Duplex 2205
  • » SCC Immunity: Exceptional performance against Chloride Stress Corrosion Cracking (CSCC)
  • » Chemical Synergy: High Chromium (25%), Molybdenum (4%), and Nitrogen (N) alloying for extreme chemical stability
  • » Fabrication Integrity: Solution-annealed condition ensuring high ductility and weld-zone stability
  • » Testing: 100% Hydrostatic, Eddy Current, and PMI (Positive Material Identification)
  • » Local Support: Reliable stock for high-pressure desalination and offshore projects in the Jubail and Yanbu corridors

ASTM A790 Super Duplex Stainless Steel 2507 Tubes Specification

Product Identity

  • Alloy: Super Duplex 2507
  • UNS: S32750 / S32760
  • Standards: ASTM A790
  • ASME: SA790

Super-Alloy Chemistry

  • Cr: 25% | Ni: 7% | Mo: 4%
  • Nitrogen (N): Added for stability.
  • PREN Value: > 40 (The "Super" Benchmark).
  • Significance: Near-immunity to pitting/crevice attack.

High-Yield Performance

  • Yield Strength: ~550+ MPa.
  • Advantage: Exceptional strength-to-weight ratio.
  • Benefit: Ideal for high-pressure RO (Reverse Osmosis) piping systems.

Extreme Corrosion Barrier

  • SCC: Immune to Chloride Stress Corrosion Cracking.
  • Environment: Hot, stagnant seawater & high-acid chloride streams.
  • Applications: Desalination, Subsea pipelines.

Fabrication Ready

  • Microstructure: Balanced 50/50 Ferrite-Austenite.
  • Annealing: Controlled solution heat treatment.
  • Result: Optimized toughness and weld-zone stability.

Quality Assurance

  • Testing: 100% Eddy Current & Hydrostatic.
  • Verification: PMI (Positive Material Identification).
  • Compliance: EN 10204 3.1 Traceability (Heat/Lot).

ASTM A790 Super Duplex Stainless Steel 2507 Tubes Detailed Specifications

Technical Product Details
Item / Trade Name Duplex Stainless Steel Tube (2205 / 2507)
Available Grades Duplex 2205: UNS S31803 / S32205
Super Duplex 2507: UNS S32750 / S32760
Standards & Specifications ASTM A790, ASTM A789, ASTM A928 | ASME SA790, SA789 | GB, ISO, EN, JIS
Tube Type Seamless, Welded (ERW), Fabricated, LSAW Tubes
Size Range (Seamless) 6.35 mm OD to 101.6 mm OD
Size Range (Welded/ERW) 6.35 mm OD to 152 mm OD
General Dimensions OD: 10mm - 219mm | Length: 1000mm - 15000mm
Wall Thickness 0.5mm to 60mm | SWG: 10, 12, 14, 16, 18, 20 Swg
Condition & Finish Condition: Hard (Y) / Soft (M) | Solution Annealed
Finish: Polished, Annealed & Pickled (AP), Bright Annealed (BA), MF
Form & End Connection Form: Round, Coil, ‘U’ Shape, Square, Rectangular
Ends: Plain End, Beveled End, Threaded
Inspection & Testing Ultrasonic Testing, Hydrostatic, Eddy Current, Flattening, Flaring, Visual Surface Inspection, Dimensional Inspection, Tensile Properties, Chemical Analysis, Bend Test, Hardness, I.C. Test
Certification ISO EN 10204 3.1 / 3.1B / 3.2, PED, DNV, TUV Certified
Marking Standard, Grade, OD, Thickness, Length, Heat No. (Custom Marking available)
Delivery & Origin Delivery: Specialized in Shutdown, Emergency, and Project Rush Demands
Origin: American, European, Japanese, Chinese Standard Stock

ASTM A790 Super Duplex Stainless Steel 2507 Tubes Chemical Composition

Element Composition Percentage (%)
Chromium (Cr) 24.0 – 26.0
Nickel (Ni) 6.0 – 8.0
Molybdenum (Mo) 3.0 – 5.0
Nitrogen (N) 0.24 – 0.32
Manganese (Mn) 1.20 Max
Silicon (Si) 0.80 Max
Carbon (C) 0.030 Max
Phosphorus (P) 0.035 Max
Sulfur (S) 0.020 Max
Copper (Cu) 0.50 Max

ASTM A790 Super Duplex Stainless Steel 2507 Tubes Mechanical Properties

Physical Properties

Property Typical Value (ASTM A790)
Tensile Strength (Rm) 800 MPa (116 ksi) Min.
Yield Strength (Rp0.2) 550 MPa (80 ksi) Min.
Elongation (A5) 15% Min.
Hardness (HB) 310 Max.
Impact Energy ≥ 100 J (at -40°C)

Size & Stock Range of ASTM A790 Super Duplex Stainless Steel 2507 Tubes

Tube Type NB Sizes Sch 5 Sch 10 Sch 40 Sch 80 Sch 160
Super Duplex Steel 2507 Tube 1/8" -
Super Duplex Steel 2507 Tube 1/4" -
Super Duplex Steel 2507 Tube 3/8" -
Super Duplex Steel 2507 Tube 1/2"
Super Duplex Steel 2507 Tube 3/4"
Super Duplex Steel 2507 Tube 1"
Super Duplex Steel 2507 Tube 1 1/4"
Super Duplex Steel 2507 Tube 1 1/2"
Super Duplex Steel 2507 Tube 2"
Super Duplex Steel 2507 Tube 2 1/2"
Super Duplex Steel 2507 Tube 3"
Super Duplex Steel 2507 Tube 4"
Super Duplex Steel 2507 Tube 5"
Super Duplex Steel 2507 Tube 6"

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
Global Footprint

We Supply To 60+ Countries

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USA USA
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Germany Germany
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