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

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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%. 
  • Steel Garde:G2500a
  • Type:Cast Iron and Cast Steel
  • Country:USA
  • Standard:SAE
  • Standard Number:
    ITEM Standard Number Descriptions
    1 ASTM A 159 (1983) Automotive gray iron castings
  • Metallographic Structure:Ferrite-Pearlitic
  • Application:Used in the products of the automobile, truck, tractor, and allied industries

Chemical composition(mass fraction)(wt.%)

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

Mechanical Properties

Tensile strength 541~904 σb/MPa
Yield Strength 727 σ 0.2 ≥/MPa
Elongation 60 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 669~228 -
HRC 30 -

Physical Properties

Thermal expansion 47-36 e-6/K
Thermal conductivity 81-00 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6418-8151 째C
Density 2100-3073 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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