Data Sheets

Stainless Steel   |   Duplex


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.

Chemical Composition

Chemical Element % Present
Iron (Fe) balance
Sulphur (S) 0.03 max
Carbon (C) 0.04 max
Phosphorous (P) 0.04 max
Nitrogen (N) 0.2 - 0.25
Copper (Cu) 0.1 - 0.8
Molybdenum (Mo) 1 - 0.8
Nickel (Ni) 1.35 - 1.7
Manganese (Mn) 4 - 6
Chromium (Cr) 21 - 22

Alloy Designations

LDX2101 lean duplex stainless steel is equivalent to:



Supplied Forms

  • Fittings & Flanges
  • Pipe
  • Plate
  • Tube

Generic Physical Properties

Physical Property Value
Density 7.8 g/cm³
Modulus of Elasticity 200 GPa

Mechanical Properties

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