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Duplex & Super Duplex

Maximum Strength. Ultimate Resistance.

Material Grade

Maximum Strength. Ultimate Resistance.

Duplex steels (CD4MCu, SAF 2205) and Super Duplex steels (SAF 2507) offer a dual-phase microstructure. They provide nearly twice the yield strength of standard austenitic stainless steels and outstanding resistance to chloride stress corrosion cracking.

Material Specs PDF
Duplex & Super Duplex
Grade Characteristics

Features & Engineering Benefits

High Yield Strength

  • Twice the strength of 316L
  • Allows for thinner walls
  • Weight reduction in designs
  • High fatigue strength
  • Superior load bearing

Chloride Resistance

  • Immune to stress corrosion cracking
  • Perfect for seawater applications
  • High PREN numbers
  • Resists pitting & crevice corrosion
  • Ideal for desalination plants

Marine Applications

  • Offshore oil & gas components
  • Shipbuilding hardware
  • Subsea valves and pumps
  • Chemical tankers
  • Harsh environment proven