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  • duplex steel S31050 bars and rods

duplex steel S31050 bars and rods

  • duplex steel:S31050
  • Size:5~500mm
  • Length:As per clients' requirements.
  • Surface:Bright or Black


1.4466 UREA 25.22.2 310MoLN duplex steel S31050 bars and rods


HT PIPE company supplies high quality 310MoLN bars.
Stainless steel grade 310MoLN is a fully austenitic stainless steel that does not have intermetallic phases such as intergranular carbide precipitations. The 310MoLN steel grade has an optimized chemical composition designed specifically for applications in urea plants. The nitrogen in the chemical composition helps to stabilize and strengthen the austenitic phase. This material provides improved corrosion-resistance in urea carbamate environments such as high-pressure strippers.
Density: 7.9g/cm3
  • Very good corrosion resistance to carbamide synthesis.
  • Good corrosion resistance to intergranular corrosion.
Production of carbamide.
Equal grades
UNS S31050, EN 1.4466, 00Cr25Ni20Mo2N, 25-22-2, X1CrNiMoN25-22-2

Chemical Composition

The chemical composition of stainless steel grade 310 MoLN is outlined in the following table.

Element Content (%)
Iron, Fe Balance
Chromium, Cr 24-26
Nickel, Ni 21-23
Molybdenum, Mo 2-2.50
Manganese, Mn ≤ 2
Nitrogen, N 0.10-0.16
Silicon, Si ≤ 0.70
Phosphorous, P 0.025
Carbon, C ≤ 0.020
Sulfur, S ≤ 0.010

Mechanical Properties

The mechanical properties of stainless steel grade 310 MoLN are displayed in the following table.

Properties Metric Imperial
Tensile strength 540-740 MPa 78320- 107327 psi
Proof strength 250 MPa 36259 psi
Modulus of elasticity (20°C) 195 GPa 28282 ksi
Elongation at break (In 2", 50% cold worked) 40% 40%
Hardness, Brinell 95 95
  • ASTM A240 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
  • ASTM A182-A182M-13 Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
Product forms available
Bar, plate, sheet, tube, forging

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