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X6CrNiMoTi17-12-2 (1.4571)
發(fā)布者：admin發(fā)布時(shí)間：2020-11-24 02:45:15

DIN EN 1.4571 Material, X6CrNiMoTi17-12-2 Stainless Steel


EN 1.4571 Material (X6CrNiMoTi17-12-2 Stainless Steel)現(xiàn)貨價(jià)格查詢

DIN EN 1.4571 material (X6CrNiMoTi17-12-2) is made by adding titanium (Ti) to EN 1.4401 stainless steel (X5CrNiMo17-12-2) to improve the resistance to intergranular corrosion. Titanium can improve the corrosion resistance of stainless steel, especially intergranular corrosion, effectively prevent the sensitization of stainless steel, and also improve the stability of steel in high temperature and high pressure. When the mass fraction of titanium is between 0.03% and 0.1%, the yield strength of the steel is improved. Therefore, EN 1.4571 material has higher temperature resistance, corrosion resistance and sensitization resistance than 1.4401.

Corrosion Resistance

EN 1.4571 is more resistant to corrosion than EN 1.4301 (X5CrNi18-10) and 1.4401 (X5CrNiMo17-12-2). Because it contains titanium and forms TiC with carbon, it greatly reduces the risk of intergranular corrosion sensitization. However, in high temperature, high concentration of concentrated nitric acid, chloride and hot alkaline solution, significant corrosion may occur.

Welding

EN 1.4571 steel has good weldability, does not require preheating before welding, and usually does not require heat treatment after welding.

Heat Treatment

  • Hot forming temperature: 1200-900℃ (cooling: air)
  • Solution annealing temperature: 1020-1120℃ (cooling: air, water)

Datasheet

Below is material 1.4571 datasheet including chemical composition, density, thermal expansion coefficient, thermal conductivity, yield strength, hardness, etc.

Chemical Composition

The typical chemical composition of 1.4571 is given in the table below.

      Chemical Composition %
Country (Regions) Standard Steel Name (Material Number) C ≤ Si ≤ Mn ≤ P ≤ S ≤ Cr Ni Mo Ti
European Union EN 10088-3 X6CrNiMoTi17-12-2 (1.4571) 0.08 1.00 2.00 0.045 0.015 16.5-18.5 10.5-13.0 2.00-2.50 5xC-0.70

Physical Properties

  • Density: 8.0 g/cm3
  • Electrical resistance: 0.75 (Ω.mm2/m) at 20 °C
  • Specific heat capacity: 500 (J/kg.K) at 20 °C
  • Thermal conductivity: 15 (W/m.K) at 20 °C
  • Modulus of elasticity (GPa):
    • 200 (at 20 °C)
    • 194 (at 100 °C)
    • 186 (at 200 °C)
    • 179 (at 300 °C)
    • 172 (at 400 °C)
    • 165 (at 500 °C)
  • Thermal expansion (10-6.K-1):
    • 16.5 (20 – 100 °C)
    • 17.5 (20 – 200 °C)
    • 18.0 (20 – 300 °C)
    • 18.5 (20 – 400 °C)
    • 19.0 (20 – 500 °C)

Notes: 10-6.K-1 = 10-6/K = (µm/m)/°C

Mechanical Properties

      Mechanical properties (solution annealed)
Country (Regions) Standard Steel Grade (Steel Number) Diameter (d) or Thickness (t) in mm Hardness (HB) 0.2% yield strength (N/mm2) 1% yield strength (N/mm2) Tensile strength (N/mm2) Elongation (%) Impact energy (J)
European Union EN 10088-3 X6CrNiMoTi17-12-2 (1.4571) d≤160 ≤ 215 ≥ 200 ≥ 235 500-700 ≥ 40 ≥ 100
160 ≥ 30 ≥ 60
      Mechanical properties for bright bars (solution annealed)
Country (Regions) Standard Steel Grade (Steel Number) Diameter (d) or Thickness (t) in mm 0.2% yield strength (N/mm2) ≥ Tensile strength (N/mm2) Elongation (%) ≥ Impact energy (J) ≥
European Union EN 10088-3 X6CrNiMoTi17-12-2 (1.4571) d≤10 400 600-950 25 –
10 380 580-950 25 –
16 200 500-850 30 100
40 200 500-850 30 100
63 200 500-700 40 100
160 200 500-700 35 60

Applications

Screening in marine environment, nuclear power equipment, pulp and paper equipment, marine equipment, food processing equipment, heat exchangers, propeller shafts and fittings, pipe and flange, tableware and cookware, etc.

Equivalent

Stainless steel 1.4571 equivalent to US ASTM AISI, ISO, Japanese JIS and Chinese GB standard.

EN 1.4571 (X6CrNiMoTi17-12-2) material equivalent
European Union USA ISO China Japan
Standard Steel Name (Material Number) Standard Grade (UNS) Standard ISO Name (ISO Number) Standard Grade Standard Grade
EN 10088-3;
EN 10088-1		 X6CrNiMoTi17-12-2 (1.4571) AISI;
ASTM A240/A240M;
A276/A276M		 316Ti (S31635) ISO 15510 X6CrNiMoTi17-12-2 (4571-316-35-I) GB/T 20878;
GB/T 1220;
GB/T 3280		 06Cr17Ni12Mo2Ti;
0Cr18Ni12Mo3Ti (Old designation)		 JIS G4304 SUS316Ti

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