UNS N08926 Stainless Steel

UNS N08926 is a super-austenitic molybdenum stainless steel that exhibits excellent resistance to a variety of highly corrosive environments. The combination of molybdenum and nitrogen in its composition resists pitting and crevice corrosion, while copper improves sulfuric acid resistance, and nitrogen improves yield and tensile strengths.

The following datasheet will provide more details about UNS N08926 (X1NiCrMoCuN25-20-7, EN 1.4529).

Chemical Composition

The following table shows the chemical composition of UNS N08926.

ElementContent (%)
Iron, Fe41.69 – 50.35
Nickel, Ni24-26
Chromium, Cr19-21
Molybdenum, Mo6-7
Manganese, Mn≤2
Copper, Cu0.5-1.5
Silicon, Si≤0.5
Nitrogen, N0.15-0.25
Phosphorous, P≤0.03
Carbon, C≤0.02
Sulfur, S≤0.01

Physical Properties

The physical properties of UNS N08926 are outlined in the following table.

PropertiesMetricImperial
Density8.03 g/cm³0.29 lb/in³

Mechanical Properties

The mechanical properties of UNS N08926 are outlined in the following table.

PropertiesMetricImperial
Tensile strength≥648 MPa≥94000 psi
Yield strength≥296 MPa≥43000 psi
Modulus of elasticity192 GPa27800 ksi
Elongation at break≥35 %≥35 %
Rockwell B hardness≤86≤86

Applications

The following are some of the major applications of UNS N08926:

  • Desalinization systems
  • Pulp and paper industry
  • Food processing equipment
  • Chemical processing plant
  • Offshore oil and gas production
  • Power generation