1.2057 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2057

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EN 1.2057

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This page is mainly introduced the 1.2057 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2057,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Hardened steel; Ball and roller bearing steels

Cross Reference Table(Equivalent Materials):

Material Standard Country
1.2057 EN Germany

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.00  1.10
Si 0.15  0.35
Mn 0.20  0.40
P   0.030
S   0.030
Cr 0.90  1.10
Mo  
V  

Mechanical Properties

Tensile strength 861~214 σb/MPa
Yield Strength 021 σ 0.2 ≥/MPa
Elongation 65 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 541~877 -
HRC 30 -

Physical Properties

Thermal expansion 50-74 e-6/K
Thermal conductivity 13-94 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0374-0395 째C
Density 1935-1137 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)
1.2057 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