G2500a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G2500a

SAE G2500a

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This page is mainly introduced the G2500a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G2500a,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Brake drums and clutch plates for moderate service requirements, where high carbon iron is desired to minimize heat checking. Lamellar pearlite ferrite if present not to exceed 15%. 

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   3.40
Si 1.60  2.10
Mn 0.60  0.90
P   0.15
S   0.12

Mechanical Properties

Tensile strength 840~259 σb/MPa
Yield Strength 638 σ 0.2 ≥/MPa
Elongation 96 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 256~197 -
HRC 30 -

Physical Properties

Thermal expansion 44-39 e-6/K
Thermal conductivity 29-12 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8823-9242 째C
Density 7672-6850 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)
G2500a Cast Iron and Cast Steel 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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