1.4021 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4021

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AFNOR 1.4021

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This page is mainly introduced the 1.4021 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4021,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
1.4021
  • Steel Garde:1.4021
  • Type:Special Alloy
  • Country:France
  • Standard:AFNOR
  • Application:Martensite And Precipitation Hardening

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 402~222 σb/MPa
Yield Strength 799 σ 0.2 ≥/MPa
Elongation 37 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 412~574 -
HRC 30 -

Physical Properties

Thermal expansion 70-50 e-6/K
Thermal conductivity 99-72 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9986-9064 째C
Density 3989-5144 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

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Size Availability

Steel Grade Specification Processing range(mm)
1.4021 Special Alloy 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