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Automotive Grey Cast Iron vs. SAE-AISI H26 Steel

Both automotive grey cast iron and SAE-AISI H26 steel are iron alloys. 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 automotive grey cast iron and the bottom bar is SAE-AISI H26 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69 to 70
80
Tensile Strength: Ultimate (UTS), MPa 140 to 290
720 to 2100

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
240
Melting Completion (Liquidus), °C 1380 to 1390
1810
Melting Onset (Solidus), °C 1340 to 1350
1760
Specific Heat Capacity, J/kg-K 490
410
Thermal Conductivity, W/m-K 41 to 43
22
Thermal Expansion, µm/m-K 12 to 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
45
Density, g/cm3 7.5 to 7.6
9.3
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
8.1
Embodied Energy, MJ/kg 21 to 24
120
Embodied Water, L/kg 44 to 51
90

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 5.2 to 11
22 to 63
Strength to Weight: Bending, points 8.0 to 13
19 to 39
Thermal Diffusivity, mm2/s 11 to 12
5.6
Thermal Shock Resistance, points 4.2 to 8.6
22 to 63