1.4418 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4418

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AFNOR 1.4418

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This page is mainly introduced the 1.4418 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4418,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa
  • Steel Garde:1.4418
  • Type:Stainless Steels
  • Country:France
  • Standard:AFNOR
  • Standard Number:
    ITEM Standard Number Descriptions
    1 NF EN 10028-7 Flat products made of steels for pressure purposes - Part 7: Stainless steels
    2 NF EN 10088-1 Stainless steels - Part 1: List of stainless steels
    3 NF EN 10088-2 Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
    4 NF EN 10088-3 Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
    5 NF EN 10088-4 Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
    6 NF EN 10088-5 Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
    7 NF EN 10250-4 Open die steel forgings for general engineering purposes - Part 4: Stainless steels
    8 NF EN 10272 Stainless steel bars for pressure purposes
    9 NF EN 4629 Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Forging stock - De = 300 mm
    10 NF EN 4631 Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa
  • Metallographic Structure:Precipitation-Hardening
  • Application:Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa

Cross Reference Table(Equivalent Materials):

Material Standard Country
X4CrNiMo16-5-1 B.S. UK
1.4418 B.S. UK
X4CrNiMo16-5-1 AFNOR France

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.06
Si   0.70
Mn   1.50
P   0.040
S   0.015
Cr 15.00  17.00
Mo 0.80  1.50
Ni 4.00  6.00
N 0.020 

Mechanical Properties

Tensile strength 852~654 σb/MPa
Yield Strength 245 σ 0.2 ≥/MPa
Elongation 78 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 278~242 -
HRC 30 -

Physical Properties

Thermal expansion 25-21 e-6/K
Thermal conductivity 92-19 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4209-4867 째C
Density 6705-3092 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
1.4418 Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download