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G1800 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G1800

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SAE G1800

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This page is mainly introduced the G1800 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G1800,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
G1800

Steel Garde:G1800
Type:Cast Iron and Cast Steel
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 A 159 (2011) Automotive Gray Iron Castings
Metallographic Structure:Ferrite-Pearlitic
Application:Used in the products of the automobile, truck, tractor, and allied industries. Miscellaneous soft iron castings (as cast or annealed) in which strength is not of primary consideration. Exhaust manifolds may be made of this grade of iron, alloyed or unallo

ITEM	Standard Number	Descriptions
1	A 159 (2011)	Automotive Gray Iron Castings

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	3.40	3.70
Si	2.30	2.80
Mn	0.50	0.80
P		0.25
S		0.15
CEV	4.25	4.5

Mechanical Properties

Tensile strength	821～792	σb/MPa
Yield Strength	540	σ 0.2 ≥/MPa
Elongation	23	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	090～686	-
HRC	30	-

Physical Properties

Thermal expansion	77-28	e-6/K
Thermal conductivity	30-68	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2612-3780	째C
Density	0145-9714	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)
G1800 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