X91CrMoV18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X91CrMoV18

DIN X91CrMoV18

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This page is mainly introduced the X91CrMoV18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X91CrMoV18,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
High alloyed CrMoV steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.86  0.96
Si   1.00
Mn   1.00
P   0.045
S   0.030
Cr 17.00  19.00
Mo 0.90  1.30
V 0.07  0.12
Ni   0.30

Mechanical Properties

Tensile strength 984~115 σb/MPa
Yield Strength 778 σ 0.2 ≥/MPa
Elongation 79 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 367~492 -
HRC 30 -

Physical Properties

Thermal expansion 78-23 e-6/K
Thermal conductivity 69-61 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3855-1481 째C
Density 5895-9882 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)
X91CrMoV18 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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