18CrNiMnMoA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 18CrNiMnMoA

GBT 18CrNiMnMoA

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This page is mainly introduced the 18CrNiMnMoA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 18CrNiMnMoA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
18CrNiMnMoA
  • Steel Garde:18CrNiMnMoA
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 661~858 σb/MPa
Yield Strength 284 σ 0.2 ≥/MPa
Elongation 20 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 825~644 -
HRC 30 -

Physical Properties

Thermal expansion 74-88 e-6/K
Thermal conductivity 24-00 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0325-1991 째C
Density 3657-5043 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

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Size Availability

Steel Grade Specification Processing range(mm)
18CrNiMnMoA Special Alloy 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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