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

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GB Cr2

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This page is mainly introduced the Cr2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Cr2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Cr2 Measuring tool cutting tool steel
  • Steel Garde:Cr2
  • Type:Tool Steels & Die Steels
  • Country:China
  • Standard:GB
  • Standard Number:
    ITEM Standard Number Descriptions
    1 GB/T 1229-2000 Alloy tool steel
  • Application:Measuring tool cutting tool steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
125Cr2 DIN Germany
140Cr2 EN Whole
74NiCr2 DIN Germany

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤)
C 0.95  1.10
Si   0.40
Mn   0.40
Cr 1.30  1.65

Mechanical Properties

Tensile strength 156~899 σb/MPa
Yield Strength 343 σ 0.2 ≥/MPa
Elongation 65 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 363~884 -
HRC 30 -

Physical Properties

Thermal expansion 54-72 e-6/K
Thermal conductivity 63-37 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5499-7467 째C
Density 0095-3852 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)
Cr2 Tool Steels & 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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