Stainless Steel - Austenitic - XM-19


XM-19 is a nitrogen-strengthened austenitic stainless steel that is available in an annealed or high strength condition. XM-19 can be used in a wide variety of industries including chemical, marine, nuclear, food processing, petrochemical, sour well service, cryogenic, textile and pulp & paper.

Chemical Composition



Chemical Element % Present
Carbon (C) 0.0 - 0.03
Chromium (Cr) 20.50 - 23.50
Manganese (Mn) 4.00 - 6.00
Silicon (Si) 0.20 - 0.60
Phosphorous (P) 0.0 - 0.04
Sulphur (S) 0.0 - 0.01
Nickel (Ni) 11.50 - 13.50
Nitrogen (N) 0.20 - 0.40
Molybdenum (Mo) 1.50 - 3.00
Vanadium (V) 0.10 - 0.30
Iron (Fe) Balance


Physical PropertyValue
Density 7.8 g/cm³
Thermal Conductivity 13.3 W/m.K



Mechanical PropertyValue
Elongation A50 mm min 20 %
Tensile Strength 750 N/mm2
Proof Stress 758 MPa
Tensile Strength 930 MPa
Hardness Rockwell C 25-35 HRC

Alloy Designations

ASTM A276, A479, A182, API6APSL3, ASME A479

UNS 209104

NACE MR 0175/ISO 15156-3

NACE MR0103-2003

ISO9001:2008 ISO14001:2004

Supplied Forms

  • Sheet
  • Bar
  • Plate
  • Rod


  • Mechanical strength better than that of other austentics including 316/316L
  • Greater corrosion resistance than other austenitics
  • Good mechanical properties at elevated and sub-zero temperatures
  • Good ductility and impact strength maintained at sub-zero temepratures
  • Does not become magnetic even when severely cold worked
  • Utilises the same fabrication procedures as stainless steel 300 grades
  • Utilises the same cooling techniques as stainless steel 300 grades
  • Readily weldable usng standard processes
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Last Datasheet Revision

22 July 2016


This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.

Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied.

Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.