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SAE-AISI H23 Steel vs. Automotive Malleable Cast Iron

Both SAE-AISI H23 steel and automotive malleable cast iron are iron alloys. They have 75% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H23 steel and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
70
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
350 to 720

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1680
1410
Melting Onset (Solidus), °C 1630
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
41
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 34
1.9
Density, g/cm3 8.7
7.6
Embodied Carbon, kg CO2/kg material 6.9
1.5
Embodied Energy, MJ/kg 110
20
Embodied Water, L/kg 120
45

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 49
13 to 26
Strength to Weight: Bending, points 21 to 34
14 to 24
Thermal Diffusivity, mm2/s 5.2
11
Thermal Shock Resistance, points 23 to 47
9.9 to 21

Alloy Composition

Carbon (C), % 0.25 to 0.35
2.2 to 2.9
Chromium (Cr), % 11 to 12.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
93.6 to 96.7
Manganese (Mn), % 0.15 to 0.4
0.15 to 1.3
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0.020 to 0.15
Silicon (Si), % 0.15 to 0.6
0.9 to 1.9
Sulfur (S), % 0 to 0.030
0.020 to 0.2
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0

Comparable Variants