Grade Profile

1.4462 / S32205 Welded Stainless Steel Tube

EHG manufactures welded stainless steel tube in grade 1.4462 (S32205) at our facility in Steinberg, Germany. The standard duplex grade, combining roughly double the strength of 316L with excellent chloride pitting and stress-corrosion resistance.

Also Known As

1.4462 welded stainless steel tube is specified and sold internationally under several equivalent names:

EN (Kurzname) X2CrNiMoN22-5-3
ASTM / AISI (USA) S32205
UNS (USA) S32205
AISI (USA) F51
SS (Sweden) 2377
AFNOR (France) Z5CNDU21.08
BS (UK) 318S13
Common / trade name Duplex 2205

Technical Data

EN 1.4462 / X2CrNiMoN22-5-3 — ASTM / AISI S32205.

Chemical Composition (% by mass, cast analysis)

Carbon (C) ≤ 0.030 %
Silicon (Si) ≤ 1.00 %
Manganese (Mn) ≤ 2.00 %
Phosphorus (P) ≤ 0.035 %
Sulfur (S) ≤ 0.015 %
Nitrogen (N) 0.10 - 0.22 %
Chromium (Cr) 21.0 - 23.0 %
Molybdenum (Mo) 2.5 - 3.5 %
Nickel (Ni) 4.5 - 6.5 %

Mechanical Properties (room temperature)

0.2 % proof strength (Rp0.2) ≥ 450 MPa
Tensile strength (Rm) 700 - 920 MPa
Elongation after fracture (A, longitudinal) ≥ 25 %
Elongation after fracture (A, transverse) ≥ 20 %

Corrosion Resistance Index

PREN (Cr + 3.3×Mo + 16×N) 34.5 Seawater-resistant (PREN ≥ 32)

Available Standards

1.4462 welded stainless steel tube from EHG can be ordered to the following standards:

General & mechanical engineering tube DIN EN 10296-2
Welded tube for pressure purposes DIN EN 10217-7
Food & pharmaceutical industry tube DIN EN 10357
Pipe classes for process plants DIN 21057-11
Corrosion-resisting steels (supplementary conditions) SEW 470
Welded pipe (USA) ASTM A312 / ASME SA-312
Boiler, superheater & heat-exchanger tube (USA) ASTM A249 / ASME SA-249

Typical Applications

What our customers build with 1.4462 / S32205 welded tubes:

  • Pressure vessels & tanks — thinner-walled equipment thanks to duplex’s higher strength.
  • Chemical processing — piping for chloride-containing and mildly acidic media.
  • Marine & offshore structures — tube in splash-zone and structural applications.
  • Pulp & paper — bleach-plant equipment exposed to chlorides.

Alloy Surcharge History

EUR/kg — February 2013 to September 2026

September 2026 (current) 4.52 €/kg
1.00 2.00 3.00 4.00 5.00 6.00 20132015201720192021202320252026 4.52 €/kg

Drag across the chart to zoom in on a period — use "Reset zoom" to return to the full history.

Period€/kg
September 20264.52
August 20264.46
July 20264.46
June 20264.31
May 20264.14
April 20264.15

Last 12 Months

Period€/kg
September 20264.52
August 20264.46
July 20264.46
June 20264.31
May 20264.14
April 20264.15
March 20263.90
February 20263.70
January 20263.49
December 20253.63
November 20253.63
October 20253.65

Full history available at ehg-steinberg.de.

View full history as a table
PeriodAlloy surcharge (€/kg)
September 20264.52
August 20264.46
July 20264.46
June 20264.31
May 20264.14
April 20264.15
March 20263.90
February 20263.70
January 20263.49
December 20253.63
November 20253.63
October 20253.65
September 20253.54
August 20253.43
July 20253.46
June 20253.41
May 20253.57
April 20253.77
March 20253.83
February 20253.88
January 20253.85
December 20243.79
November 20243.73
October 20243.64
September 20243.71
August 20243.91
July 20244.04
June 20243.93
May 20243.72
April 20243.68
March 20243.58
February 20243.55
January 20243.38
December 20233.63
November 20233.92
October 20234.04
September 20233.96
August 20233.89
July 20234.10
June 20234.18
May 20234.40
April 20235.55
March 20235.85
February 20235.10
January 20234.53
December 20224.18
November 20224.19
October 20223.98
September 20223.77
August 20224.06
July 20224.42
June 20224.61
May 20224.99
April 20224.41
March 20223.88
February 20223.75
January 20223.71
December 20213.61
November 20213.47
October 20213.52
September 20213.42
August 20213.28
July 20212.95
June 20212.60
May 20212.50
April 20212.58
March 20212.46
February 20212.24
January 20212.10
December 20202.03
November 20201.94
October 20201.92
September 20201.79
August 20201.82
July 20201.88
June 20201.96
May 20201.87
April 20201.93
March 20202.05
February 20202.01
January 20202.00
December 20192.10
November 20192.36
October 20192.40
September 20192.28
August 20192.15
July 20192.20
June 20192.22
May 20192.28
April 20192.24
March 20192.11
February 20192.03
January 20192.14
December 20182.22
November 20182.23
October 20182.28
September 20182.36
August 20182.32
July 20182.40
June 20182.33
May 20182.22
April 20182.22
March 20182.13
February 20182.02
January 20181.93
December 20171.95
November 20171.87
October 20171.80
September 20171.65
August 20171.67
July 20171.84
June 20171.97
May 20172.11
April 20172.14
March 20172.04
February 20172.05
January 20171.83
December 20161.64
November 20161.54
October 20161.45
September 20161.49
August 20161.42
July 20161.37
June 20161.27
May 20161.15
April 20161.16
March 20161.11
February 20161.17
January 20161.20
December 20151.24
November 20151.26
October 20151.27
September 20151.37
August 20151.47
July 20151.61
June 20151.65
May 20151.72
April 20151.71
March 20151.73
February 20151.72
January 20151.72
December 20141.71
November 20141.79
October 20142.00
September 20141.96
August 20141.96
July 20142.04
June 20141.91
May 20141.66
April 20141.48
March 20141.48
February 20141.47
January 20141.43
December 20131.46
November 20131.40
October 20131.46
September 20131.47
August 20131.53
July 20131.65
February 20131.63

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The technical data, standards references and alloy surcharge history on this page are provided for general information only. EHG makes no warranty as to their accuracy or completeness and accepts no liability for decisions made on this basis. Always verify current specifications against the applicable official standard (e.g. DIN EN 10088, EN 10095, ASTM/ASME) before using them for design, procurement or manufacturing.