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AWS E309Mo vs. Automotive Malleable Cast Iron

Both AWS E309Mo and automotive malleable cast iron are iron alloys. They have 60% of their average alloy composition in common. 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 AWS E309Mo and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 34
1.0 to 10
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
70
Tensile Strength: Ultimate (UTS), MPa 620
350 to 720

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
41
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.9
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 4.2
1.5
Embodied Energy, MJ/kg 59
20
Embodied Water, L/kg 180
45

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
13 to 26
Strength to Weight: Bending, points 20
14 to 24
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 15
9.9 to 21

Alloy Composition

Carbon (C), % 0 to 0.12
2.2 to 2.9
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 53.6 to 63.5
93.6 to 96.7
Manganese (Mn), % 0.5 to 2.5
0.15 to 1.3
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 12 to 14
0
Phosphorus (P), % 0 to 0.040
0.020 to 0.15
Silicon (Si), % 0 to 1.0
0.9 to 1.9
Sulfur (S), % 0 to 0.030
0.020 to 0.2