25MnG chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 25MnG

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GBT 25MnG

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This page is mainly introduced the 25MnG chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 25MnG,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
25MnG
  • Steel Garde:25MnG
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 529~500 σb/MPa
Yield Strength 442 σ 0.2 ≥/MPa
Elongation 35 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 840~097 -
HRC 30 -

Physical Properties

Thermal expansion 76-61 e-6/K
Thermal conductivity 18-79 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8776-9529 째C
Density 6065-0839 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)
25MnG 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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