140Cr3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 140Cr3

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DIN 140Cr3

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This page is mainly introduced the 140Cr3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 140Cr3,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 605~644 σb/MPa
Yield Strength 527 σ 0.2 ≥/MPa
Elongation 45 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 550~686 -
HRC 30 -

Physical Properties

Thermal expansion 23-85 e-6/K
Thermal conductivity 55-41 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4315-2172 째C
Density 2435-3682 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)
140Cr3 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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