Grade Profile

1.4512 / 409 Welded Stainless Steel Tube

EHG manufactures welded stainless steel tube in grade 1.4512 (409) at our facility in Steinberg, Germany. A low-chromium stabilized ferritic grade - the entry-level tube grade for automotive exhaust systems and mild-environment fabrication where cost matters most.

Also Known As

1.4512 welded stainless steel tube is specified and sold internationally under several equivalent names:

EN (Kurzname) X2CrTi12
ASTM / AISI (USA) 409
UNS (USA) S40900

Technical Data

EN 1.4512 / X2CrTi12 — ASTM / AISI 409.

Chemical Composition (% by mass, cast analysis)

Carbon (C) ≤ 0.030 %
Silicon (Si) ≤ 1.00 %
Manganese (Mn) ≤ 1.00 %
Phosphorus (P) ≤ 0.040 %
Sulfur (S) ≤ 0.015 %
Nitrogen (N) ≤ 0.030 %
Chromium (Cr) 10.5 - 12.5 %
Titanium (Ti) 6x (C+N) - 0.65 %

Mechanical Properties (room temperature)

0.2 % proof strength (Rp0.2) ≥ 210 MPa
1 % proof strength (Rp1.0) ≥ 220 MPa
Tensile strength (Rm) ≥ 380 MPa
Elongation after fracture (A, longitudinal) ≥ 25 %
Elongation after fracture (A, transverse) ≥ 23 %

Available Standards

1.4512 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 1.4512 / 409 welded tubes:

  • Automotive exhaust systems — the standard entry-level exhaust tube grade.
  • Agricultural & general equipment — mild-corrosion structural tube.
  • Cost-sensitive fabrication — applications where austenitic-grade resistance isn’t needed.

Alloy Surcharge History

EUR/kg — February 2013 to September 2026

September 2026 (current) 1.06 €/kg
0.20 0.40 0.60 0.80 1.00 1.20 1.40 20132015201720192021202320252026 1.06 €/kg

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

Period€/kg
September 20261.06
August 20261.07
July 20261.07
June 20261.06
May 20261.06
April 20261.02

Last 12 Months

Period€/kg
September 20261.06
August 20261.07
July 20261.07
June 20261.06
May 20261.06
April 20261.02
March 20260.97
February 20260.98
January 20260.98
December 20250.97
November 20250.95
October 20250.94

Full history available at ehg-steinberg.de.

View full history as a table
PeriodAlloy surcharge (€/kg)
September 20261.06
August 20261.07
July 20261.07
June 20261.06
May 20261.06
April 20261.02
March 20260.97
February 20260.98
January 20260.98
December 20250.97
November 20250.95
October 20250.94
September 20250.95
August 20250.94
July 20250.95
June 20250.94
May 20251.00
April 20251.03
March 20251.04
February 20251.05
January 20251.04
December 20241.01
November 20240.97
October 20240.95
September 20240.97
August 20240.98
July 20240.98
June 20240.99
May 20240.98
April 20240.94
March 20240.97
February 20240.95
January 20240.96
December 20230.94
November 20230.95
October 20230.93
September 20230.89
August 20230.93
July 20231.01
June 20231.00
May 20231.03
April 20231.03
March 20230.98
February 20230.97
January 20230.96
December 20220.99
November 20221.08
October 20221.12
September 20221.10
August 20221.12
July 20221.22
June 20221.35
May 20221.36
April 20221.19
March 20221.06
February 20221.04
January 20221.06
December 20211.01
November 20210.95
October 20210.93
September 20210.93
August 20210.88
July 20210.85
June 20210.82
May 20210.80
April 20210.80
March 20210.74
February 20210.70
January 20210.61
December 20200.55
November 20200.55
October 20200.54
September 20200.53
August 20200.55
July 20200.56
June 20200.57
May 20200.55
April 20200.53
March 20200.54
February 20200.56
January 20200.55
December 20190.53
November 20190.53
October 20190.55
September 20190.57
August 20190.58
July 20190.63
June 20190.63
May 20190.64
April 20190.62
March 20190.61
February 20190.58
January 20190.64
December 20180.67
November 20180.66
October 20180.67
September 20180.69
August 20180.70
July 20180.70
June 20180.69
May 20180.66
April 20180.65
March 20180.60
February 20180.61
January 20180.64
December 20170.64
November 20170.64
October 20170.59
September 20170.55
August 20170.58
July 20170.65
June 20170.67
May 20170.70
April 20170.74
March 20170.72
February 20170.74
January 20170.58
December 20160.52
November 20160.46
October 20160.44
September 20160.45
August 20160.44
July 20160.45
June 20160.44
May 20160.39
April 20160.38
March 20160.37
February 20160.39
January 20160.42
December 20150.40
November 20150.39
October 20150.41
September 20150.42
August 20150.45
July 20150.46
June 20150.45
May 20150.46
April 20150.44
March 20150.43
February 20150.43
January 20150.41
December 20140.42
November 20140.44
October 20140.46
September 20140.44
August 20140.43
July 20140.43
June 20140.41
May 20140.41
April 20140.39
March 20140.41
February 20140.42
January 20140.41
December 20130.41
November 20130.40
October 20130.41
September 20130.41
August 20130.42
July 20130.43
February 20130.21

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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.