Stainless Steel - Duplex - LDX2101




Chemical Element % Present
Carbon (C) 0.0 - 0.04
Chromium (Cr) 21.00 - 22.00
Nickel (Ni) 1.35 - 1.70
Manganese (Mn) 4.00 - 6.00
Molybdenum (Mo) 1.00 - 0.80
Sulphur (S) 0.0 - 0.03
Phosphorous (P) 0.0 - 0.04
Copper (Cu) 0.10 - 0.80
Nitrogen (N) 0.20 - 0.25
Iron (Fe) Balance
Physical PropertyValue
Density 7.8 g/cm³
Modulus of Elasticity 200 GPa



Mechanical PropertyValue
Proof Stress 450 Min MPa
Tensile Strength 650 Min MPa
Elongation A50 mm 30 Min %

LDX2101 is a Lean Duplex Stainless Steel manufactured by Outokumpu.
LDX2101 has excellent corrosion resistance, equal to traditional duplex grades, as well as very high strength.
LDX2101 also has very high resistance to chloride stress corrosion cracking.
In suitable applications LDX2101 can be used in place of austenitic grades 304/304L, 316/316L/316Ti without cost penalty, in fact often with a cost saving, provided that redesign takes places to exploit the high strength of LDX2101.

Alloy Designations

LDX2101 lean duplex stainless steel is equivalent to:



Supplied Forms

  • Fittings & Flanges
  • Pipe
  • Plate
  • Tube

Last Datasheet Revision

18 July 2019


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.

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