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SAE-AISI H19 Steel vs. Automotive Malleable Cast Iron

Both SAE-AISI H19 steel and automotive malleable cast iron are iron alloys. They have 85% 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 H19 steel and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
70
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
350 to 720

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1540
1410
Melting Onset (Solidus), °C 1490
1370
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 29
41
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.9
Density, g/cm3 8.2
7.6
Embodied Carbon, kg CO2/kg material 7.5
1.5
Embodied Energy, MJ/kg 110
20
Embodied Water, L/kg 110
45

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 68
13 to 26
Strength to Weight: Bending, points 22 to 43
14 to 24
Thermal Diffusivity, mm2/s 7.9
11
Thermal Shock Resistance, points 21 to 59
9.9 to 21

Alloy Composition

Carbon (C), % 0.32 to 0.45
2.2 to 2.9
Chromium (Cr), % 4.0 to 4.8
0
Cobalt (Co), % 4.0 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.4 to 85.5
93.6 to 96.7
Manganese (Mn), % 0.2 to 0.5
0.15 to 1.3
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0.020 to 0.15
Silicon (Si), % 0.2 to 0.5
0.9 to 1.9
Sulfur (S), % 0 to 0.030
0.020 to 0.2
Tungsten (W), % 3.8 to 4.5
0
Vanadium (V), % 1.8 to 2.2
0

Comparable Variants