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EN 1.7131 Steel vs. Automotive Grey Cast Iron

Both EN 1.7131 steel and automotive grey cast iron are iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.7131 steel and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
69 to 70
Tensile Strength: Ultimate (UTS), MPa 470 to 1390
140 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
260 to 280
Melting Completion (Liquidus), °C 1460
1380 to 1390
Melting Onset (Solidus), °C 1420
1340 to 1350
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 45
41 to 43
Thermal Expansion, µm/m-K 13
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
1.9 to 3.0
Density, g/cm3 7.8
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 1.4
1.5 to 1.7
Embodied Energy, MJ/kg 19
21 to 24
Embodied Water, L/kg 51
44 to 51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 49
5.2 to 11
Strength to Weight: Bending, points 17 to 35
8.0 to 13
Thermal Diffusivity, mm2/s 12
11 to 12
Thermal Shock Resistance, points 14 to 41
4.2 to 8.6