1.6957 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.6957

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DIN 1.6957

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This page is mainly introduced the 1.6957 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.6957,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steels for larger forgings for components in turbine and generator installations
  • Steel Garde:1.6957
  • Type:Tool Die Steels
  • Country:Germany
  • Standard:DIN
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SEW 555 Steels for larger forgings for components in turbine and generator installations
  • Metallographic Structure:Austenite
  • Application:Steels for larger forgings for components in turbine and generator installations

Cross Reference Table(Equivalent Materials):

Material Standard Country
26NiCrMoV14-5 SEW Germany

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.28
Si   0.25
Mn   0.40
P   0.010
S   0.010
Cr 1.40  1.80
Ni 3.40  3.80
Mo 0.30  0.45
V   0.15
Al   0.025

Mechanical Properties

Tensile strength 224~552 σb/MPa
Yield Strength 702 σ 0.2 ≥/MPa
Elongation 86 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 821~715 -
HRC 30 -

Physical Properties

Thermal expansion 42-23 e-6/K
Thermal conductivity 07-90 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4763-9651 째C
Density 4422-5247 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)
1.6957 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