Stainless steel grade · Duplex

Duplex 2205 · EN 1.4462

Duplex stainless steel with roughly twice the strength of 304 and high resistance to chloride stress corrosion cracking.

Equivalents and designations

The same grade is named differently in each standard. Use the table to check a match.

SystemDesignation
AISI / ASTMDuplex 2205
EN material number1.4462
EN steel name (DIN EN 10088)X2CrNiMoN22-5-3
UNSS32205
JISSUS329J3L
Look up other equivalents →

Chemical composition

C max.
≤ 0.03
Cr
21–23
Ni
4.5–6.5
Mo
2.5–3.5
Other
N 0.10–0.22

Typical values, wt %, per EN 10088-2 and ASTM A240.

Mechanical and physical properties

Structure
Duplex
Rm (MPa)
655
Rp0.2 (MPa)
450
A (%)
25
PREN
35
Corrosion
Level 5 of 5
Weldability
Good
Magnetic
Yes
Density
7.8 g/cm³

ASTM A240 minimums for annealed material; a dash means the value depends on product form.

Typical uses

  • Desalination plants and marine structures
  • Oil, gas and chloride chemicals
  • Thin-wall high-strength tanks and pipes

What we supply in this grade

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The data is for guidance and does not replace the heat certificate. The binding values are those of the standard and the manufacturer's certificate.