Stainless two-phase duplex steel 1.4460, X3CrNiMoN27-5-2 resistant to chlorine for aviation, chemical, cryogenic and paper industries according to PN-EN 10088-1.

 

Standards Steel Grades
Chemical Composition %
C: Mn: Si: P: S: Cr: Mo: Ni: N:
EN / DIN X3CrNiMoN27-5-2 - 1.4460 - 4460
<0.05 <2.0 <1.00 <0.035 <0.030 25.0 - 28.0 1.30 - 2.00 4.5 - 6.5 0.05 - 0.20
AFNOR Z 5 CND 27-05 Az - Z5CND27-05 Az
<0.05 <2.0 <0.75 <0.035 <0.025 26.0 - 27.0 1.30 - 2.00 4.5 - 5.0 0.05 - 0.20

UNS
ASTM

AISI 329 - S32900 - S 32900 - 7-Mo
<0.08 <1.0 <0.75 <0.040 <0.030 23.0 - 28.0 1.00 - 2.00 2.5 - 5.0 -
UNS
ASTM
S31200 - S 31200 - 44 LN - F 50
<0.03 <2.0 <1.00 <0.045 <0.030 24.0 - 26.0 1.20 - 2.00 5.5 - 6.5 0.14 - 0.20
UNS
ASTM
J93371 - 25Cr-5Ni-Mo-N - CD6MN - A 781 Grade 3A
<0.06 <1.0 <1.00 <0.040 <0.040 24.0 - 27.0 1.75 - 2.50 4.0 - 6.0 0.15 - 0.25
UNE X8CrNiMo26-6 - X 8 CrNiMo 26-6 - F-3552
<0.10 <2.0 <1.00 <0.045 <0.030 24.0 - 27.0 1.30 - 1.80 4.5 - 7.0 <0.10
UNE X8CrNiMo27-05 - X 8 CrNiMo 27-05 - F-3309
<0.10 <2.0 <1.00 <0.045 <0.030 26.0 - 28.0 1.30 - 2.00 4.0 - 5.0 -
SS 2324 - SS2324
<0.10 <2.0 <1.00 <0.045 <0.030 24.0 - 27.0 1.30 - 1.80 4.5 - 7.0 -

 

1.4460, X3CrNiMoN27-5-2, AISI 329 steel - description and specification

Stainless duplex low-carbon steel resistant to intercrystalline corrosion, fatigue corrosion, crevice corrosion, pitting and stress corrosion. It exhibits excellent resistance to chlorides and, in addition, is susceptible to mechanical processing. It is characterized by high strength, hardness and good plasticity. Commonly used as steel for bearings in chlorine-containing environments.

However, in high temperatures of 300 - 900 ℃, the steel exhibits brittleness. With respect to duplex 1.4462 steel, the described grade has slightly worse corrosion resistance. Duplex 1.4460 steel products are used in the chemical, cryogenic, paper and aviation industries.

X3CrNiMoN27-5-2 steel is designed, among others, for pumps, screws, heat exchangers for power engineering, radiators, tanks, chlorine-bearing housings, valves, air constructions, pipelines, special anchors, pump shafts, stirrers and sleeves. In addition, the steel retains the resistance to intercrystalline corrosion after welding and in the delivery condition.


Mechanical and physical properties

  • Tensile strength: Rm = 620 - 880 MPa
  • Yield point: Re = > 460 MPa
  • Hardness < 260 HB
  • Elongation: A = > 20%
  • Modulus of elasticity, E = 200 GPa
  • Heat conductivity λ = 15 W ⋅ m-1 ⋅ K-1
  • Heat capacity cp20℃ = 500 J ⋅ kg-1 ⋅ K-1
  • Density: ρ = 7,80 kg/dm³

 


Properties for individual temperatures

Properties Temperatures
100℃ 200℃ 300℃ 400℃ 500℃
Yield point Rp0,2 > 360 MPa > 310 MPa - - -
Linear Expansion Factor α 13.0⋅10-6⋅K-1 13.5⋅10-6⋅K-1 14.0⋅10-6⋅K-1 - -
Modulus of elasticity E 194 GPa 186 GPa 180 GPa - -

 


In duplex X3CrNiMoN27-5-2, 1.4460, AISI 329 grade the company supplies:

 


THIS WEBSITE USES COOKIES TO IMPROVE AND FACILITATE YOUR ACCESS TO THE WEBSITE AND TO KEEP STATISTICS. IF YOU CONTINUE TO USE THIS SITE, YOU AGREE THAT THE COOKIES WILL BE STORED ON YOUR DEVICE
PRIVACY POLICY
How do I disable cookies
AGREE