Duplex Steel

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Duplex Steel Scrap

High-strength, highly corrosion-resistant scrap featuring a balanced dual microstructure. Meticulously segregated and 100% PMI-verified for critical remelting applications.

100% Verified Advanced XRF/PMI Testing
Heavy-Duty Scrap Pipes, Plates, & Heat Exchangers
Global Export Direct from UAE Facilities

Exceptional Strength & Corrosion Resistance

At NORTHAN METAL TRADING FZ LLC, we specialize in high-value Duplex and Super Duplex stainless steel scrap. Recovered from decommissioned desalination plants, chemical tankers, and offshore oil & gas rigs, our duplex scrap offers the perfect 50/50 austenitic-ferritic balance. We ensure foundries and mills achieve the exact PREN (Pitting Resistance Equivalent Number) required to manufacture materials for extreme environments.

Available Inventory Grades

Sorted to strict ISRI standards. Select your required UNS series below.

Standard Duplex

High Demand

The industry standard. Exceptional resistance to chloride stress corrosion cracking.

  • Alloy 2205 (UNS S32205 / S31803) The most widely used duplex grade. Sourced from offshore structural components and cargo tanks.
  • Chemical Profile Typical composition: 22% Chromium, 5% Nickel, 3% Molybdenum.
  • Common Scrap Forms Thick structural plates, seamless pipes, and large-diameter forged fittings.

Super & Lean Duplex

Extreme Environments

Engineered for highly aggressive, acid, and chloride-rich environments.

  • Super Duplex 2507 (UNS S32750) Premium scrap from desalination plants and marine scrubbers. (25% Cr, 7% Ni, 4% Mo).
  • Zeron 100 (UNS S32760) Includes tungsten and copper for enhanced acid resistance. Heavy pump and valve solids.
  • Lean Duplex (UNS S32101) Lower nickel content (LDX 2101) sourced from storage tanks and civil engineering structures.

Technical Specifications

Standard reference data for our premium Duplex and Super Duplex scrap grades. All outgoing materials are rigorously PMI tested to ensure accurate Chromium, Molybdenum, and Nickel levels.

Chemical Composition (%)

Grade
(UNS)		 C
(Max)		 Mn
(Max)		 Si
(Max)		 Cr Ni Mo N
(Nitrogen)		 PREN
(Typical)
2205 (S32205) 0.030 2.00 1.00 22.0 - 23.0 4.5 - 6.5 3.0 - 3.5 0.14 - 0.20 ~ 35
2507 (S32750) 0.030 1.20 0.80 24.0 - 26.0 6.0 - 8.0 3.0 - 5.0 0.24 - 0.32 ~ 42
Zeron 100 (S32760) 0.030 1.00 1.00 24.0 - 26.0 6.0 - 8.0 3.0 - 4.0 0.20 - 0.30 ~ 41
2304 (S32304) 0.030 2.50 1.00 21.5 - 24.5 3.0 - 5.5 0.05 - 0.6 0.05 - 0.20 ~ 26
LDX 2101 (S32101) 0.040 6.00 1.00 21.0 - 22.0 1.35 - 1.70 0.10 - 0.8 0.20 - 0.25 ~ 26

Mechanical Properties (Typical Annealed)

Grade Tensile Strength
(MPa) Min		 Yield Strength
0.2% Proof (MPa) Min		 Elongation
(% in 50mm) Min		 Hardness
(HRC) Max		 Hardness
(Brinell) Max
2205 620 450 25 31 293
2507 795 550 15 32 310
Zeron 100 750 550 25 28 300
2304 600 400 25 32 290
LDX 2101 650 450 30 30 290

* Note: Mechanical properties serve as a reference based on standard annealed materials. Due to the high strength of Duplex alloys, NORTHAN METAL TRADING FZ LLC guarantees chemical composition via XRF/PMI testing; mechanical properties may vary based on the scrap's work-hardened or original manufacturing condition.

Available Forms & Packaging

Duplex scrap is typically heavy and dense. We process our materials to fit your exact furnace charging requirements, ensuring maximum melt efficiency and minimal energy loss.

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Heavy Plates & Profiles

Thick structural offcuts and decommissioned tank walls, plasma-cut to specific foundry dimensions.

Process Pipes & Fittings

Dismantled pipelines, heavy flanges, and robust valve bodies from the oil & gas sector.

Machining Turnings

Clean borings and turnings from precision machining, crushed and degreased for optimal remelting.