55NiCrMoV6 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 55NiCrMoV6

DIN 55NiCrMoV6

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This page is mainly introduced the 55NiCrMoV6 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 55NiCrMoV6,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Low alloyed NiCrMo steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.50  0.60
Si 0.10  0.40
Mn 0.65  0.95
P   0.030
S   0.030
Cr 0.60  0.80
Mo 0.25  0.35
V 0.07  0.12
Ni 1.50  1.80

Mechanical Properties

Tensile strength 349~954 σb/MPa
Yield Strength 620 σ 0.2 ≥/MPa
Elongation 28 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 900~804 -
HRC 30 -

Physical Properties

Thermal expansion 55-88 e-6/K
Thermal conductivity 05-39 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8612-4341 째C
Density 8517-5779 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)
55NiCrMoV6 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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