140Cr2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 140Cr2

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EN 140Cr2

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This page is mainly introduced the 140Cr2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 140Cr2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Low alloyed Cr steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.35  1.50
Si 0.15  0.30
Mn 0.25  0.40
P   0.035
S   0.035
Cr 0.40  0.70
Mo  
V  

Mechanical Properties

Tensile strength 372~448 σb/MPa
Yield Strength 179 σ 0.2 ≥/MPa
Elongation 96 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 385~774 -
HRC 30 -

Physical Properties

Thermal expansion 28-66 e-6/K
Thermal conductivity 56-48 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9875-6229 째C
Density 2033-8013 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)
140Cr2 Tool Die 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

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