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Grey Cast Iron vs. SAE-AISI M48 Steel

Both grey cast iron and SAE-AISI M48 steel are iron alloys. They have 69% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grey cast iron and the bottom bar is SAE-AISI M48 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69
78
Tensile Strength: Ultimate (UTS), MPa 160 to 450
890 to 2390

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1380
1670
Melting Onset (Solidus), °C 1180
1620
Specific Heat Capacity, J/kg-K 490
420
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
48
Density, g/cm3 7.5
8.7
Embodied Carbon, kg CO2/kg material 1.5
13
Embodied Energy, MJ/kg 21
190
Embodied Water, L/kg 44
160

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 5.8 to 17
28 to 76
Strength to Weight: Bending, points 8.7 to 17
23 to 45
Thermal Shock Resistance, points 6.0 to 17
26 to 71

Alloy Composition

Carbon (C), % 3.1 to 3.4
1.4 to 1.5
Chromium (Cr), % 0
3.5 to 4.0
Cobalt (Co), % 0
8.0 to 10
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 92.1 to 93.9
63.8 to 69.8
Manganese (Mn), % 0.5 to 0.7
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.9
0 to 0.030
Silicon (Si), % 2.5 to 2.8
0.15 to 0.4
Sulfur (S), % 0 to 0.15
0 to 0.030
Tungsten (W), % 0
9.5 to 10.5
Vanadium (V), % 0
2.8 to 3.3