1.4462 / S 31803 / S 32205 / Duplex

Non-rusting steel

1.4462 belongs to the DUPLEX steel family. This steel has a higher corrosion resistance than, for example the austenitic 1.4404. As a result the tensile yield point is around 150% higher.

The use of non-rusting DUPLEX steels, especially 1.4462, has become popular due to the unique combination of corrosion resistance, stress cracking resistance, a high strength and tensile yield point.

1.4462 in use

This steel is ideal for the construction industry due to its high strength. The relatively low nickel content in comparison to conventional austenite also makes 1.4462 interesting from a financial viewpoint.

Assignment to current and older standards

  • Designation according to DIN: x2 Cr Ni Mo N 22-5-3
  • ASTM grade: S 31803 / S 32205
  • EN: 1.4462
  • ASME: Duplex
  • AFNOR: X2CrNiMoN 22-5-3
  • SIS: 2377
  • UNS: S 31803
  • Vd TÜV 418: 1.4462

Chemical composition reference analysis (as weight %)

Grade Amount %
C ≤ 0,03
P < 0,030
S ≤ 0,020
Si ≤ 1,0
Mn ≤ 2,0
Cr 21 – 23
Mo 2,5 – 3,5
Ni 4,5 – 6,5
N 0,08 – 0,20

Mechanical values at room temperature

Tensile strength N/mm² 640 – 900
Tensile yield point Rp 0,2 N/mm² ≥ 450
Elongation at break A5 % 25

If you are interested in 1.4462, please do not hesitate to » contact us.

Phone: +49 (0) 4402 – 92 49 – 0
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