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 545~178 σb/MPa
Yield Strength 062 σ 0.2 ≥/MPa
Elongation 79 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 480~465 -
HRC 30 -

Physical Properties

Thermal expansion 36-93 e-6/K
Thermal conductivity 43-56 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8906-3533 째C
Density 0479-1377 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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