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G1800

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#G1800

Description

USA SAE A 159 (2011), G1800 Caststeel 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 and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Caststeel: G1800
Category Class Grade Type Standard Country Application
Steel GradesCaststeel G1800 Ferrite-Pearlitic SAE USA 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

Chemical composition(mass fraction)(wt.%) of the G1800

C Si Mn P S CEV
3.40 -3.70 2.30 -2.80 0.50 -0.80 ≤0.25 ≤0.15 4.25 -4.5

Mechanical Properties of steel grade G1800

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
686 (≥) 282 (≥) 31 44 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade G1800

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
12 - -     0.34 -  
242 181 - 12.3 142   -  
159 - 44 13.2   132 222

Heat Treatment of steel grade G1800

Heat treated : 1124°C - 1745°C

Technological Curves of steel grade G1800

Cross Reference Table (Equivalent Grade) of G1800

Grade Standard Country Application
ASTM G1800

Relevant standard of G1800

A 159 (2011) Automotive Gray Iron Castings A-159-(2011).pdf
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