Grade Profile

1.4509 / 441 Welded Stainless Steel Tube

EHG manufactures welded stainless steel tube in grade 1.4509 (441) at our facility in Steinberg, Germany. A niobium/titanium-stabilized ferritic grade with good weldability and formability for its class - a cost-effective alternative to austenitic grades in mild environments.

Also Known As

1.4509 welded stainless steel tube is specified and sold internationally under several equivalent names:

EN (Kurzname) X2CrTiNb18
ASTM / AISI (USA) 441
UNS (USA) S43932

Technical Data

EN 1.4509 / X2CrTiNb18 — ASTM / AISI 441.

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 %
Chromium (Cr) 17.5 - 18.5 %
Niobium (Nb) 3xC + 0.30 - 1.0 %
Titanium (Ti) 0.10 - 0.69 %

Mechanical Properties (room temperature)

0.2 % proof strength (Rp0.2) ≥ 230 MPa
1 % proof strength (Rp1.0) ≥ 240 MPa
Tensile strength (Rm) ≥ 430 MPa
Elongation after fracture (A, longitudinal) ≥ 18 %
Elongation after fracture (A, transverse) ≥ 16 %

Available Standards

1.4509 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 1.4509 / 441 welded tubes:

  • Automotive exhaust systems — catalytic converter housings and hot-end components.
  • Appliance manufacturing — components needing moderate heat and corrosion resistance.
  • General fabrication — welded assemblies where austenitic-grade cost isn’t justified.

Alloy Surcharge History

EUR/kg — February 2013 to September 2026

September 2026 (current) 1.59 €/kg
0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 20132015201720192021202320252026 1.59 €/kg

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

Period€/kg
September 20261.59
August 20261.60
July 20261.59
June 20261.55
May 20261.56
April 20261.52

Last 12 Months

Period€/kg
September 20261.59
August 20261.60
July 20261.59
June 20261.55
May 20261.56
April 20261.52
March 20261.45
February 20261.47
January 20261.46
December 20251.45
November 20251.43
October 20251.42

Full history available at ehg-steinberg.de.

View full history as a table
PeriodAlloy surcharge (€/kg)
September 20261.59
August 20261.60
July 20261.59
June 20261.55
May 20261.56
April 20261.52
March 20261.45
February 20261.47
January 20261.46
December 20251.45
November 20251.43
October 20251.42
September 20251.43
August 20251.42
July 20251.42
June 20251.42
May 20251.48
April 20251.52
March 20251.54
February 20251.55
January 20251.54
December 20241.51
November 20241.46
October 20241.44
September 20241.47
August 20241.49
July 20241.48
June 20241.49
May 20241.48
April 20241.43
March 20241.46
February 20241.43
January 20241.44
December 20231.42
November 20231.43
October 20231.39
September 20231.34
August 20231.39
July 20231.49
June 20231.48
May 20231.48
April 20231.45
March 20231.39
February 20231.38
January 20231.37
December 20221.40
November 20221.50
October 20221.55
September 20221.52
August 20221.56
July 20221.68
June 20221.80
May 20221.78
April 20221.61
March 20221.49
February 20221.48
January 20221.50
December 20211.42
November 20211.35
October 20211.32
September 20211.31
August 20211.22
July 20211.15
June 20211.12
May 20211.11
April 20211.11
March 20211.03
February 20210.97
January 20210.88
December 20200.82
November 20200.81
October 20200.80
September 20200.79
August 20200.82
July 20200.84
June 20200.85
May 20200.83
April 20200.79
March 20200.80
February 20200.81
January 20200.81
December 20190.79
November 20190.79
October 20190.81
September 20190.83
August 20190.84
July 20190.91
June 20190.91
May 20190.91
April 20190.89
March 20190.87
February 20190.85
January 20190.92
December 20180.95
November 20180.94
October 20180.97
September 20180.98
August 20180.98
July 20180.98
June 20180.96
May 20180.92
April 20180.89
March 20180.84
February 20180.86
January 20180.91
December 20170.91
November 20170.91
October 20170.84
September 20170.78
August 20170.84
July 20170.96
June 20170.98
May 20171.02
April 20171.06
March 20171.04
February 20171.07
January 20170.85
December 20160.77
November 20160.71
October 20160.67
September 20160.68
August 20160.66
July 20160.66
June 20160.64
May 20160.61
April 20160.60
March 20160.59
February 20160.62
January 20160.66
December 20150.64
November 20150.61
October 20150.62
September 20150.64
August 20150.65
July 20150.67
June 20150.66
May 20150.66
April 20150.64
March 20150.63
February 20150.63
January 20150.61
December 20140.62
November 20140.63
October 20140.65
September 20140.63
August 20140.62
July 20140.62
June 20140.60
May 20140.60
April 20140.57
March 20140.60
February 20140.60
January 20140.59
December 20130.59
November 20130.58
October 20130.59
September 20130.59
August 20130.61
July 20130.63
February 20130.41

Need 1.4509 / 441 Welded Stainless Steel Tube?

Configure your dimensions and specification, or get in touch directly for a quote.

Configure Your Tube View Alloy Surcharge PDF

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.