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ACI-ASTM CE30 Steel vs. Grey Cast Iron

Both ACI-ASTM CE30 steel and grey cast iron are iron alloys. They have 62% of their average alloy composition in common. There are 29 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 ACI-ASTM CE30 steel and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 11
9.6
Fatigue Strength, MPa 170
69 to 170
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
69
Tensile Strength: Ultimate (UTS), MPa 630
160 to 450
Tensile Strength: Yield (Proof), MPa 310
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1410
1380
Melting Onset (Solidus), °C 1360
1180
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 14
46
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.9
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.4
1.5
Embodied Energy, MJ/kg 49
21
Embodied Water, L/kg 180
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 240
27 to 240
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
5.8 to 17
Strength to Weight: Bending, points 21
8.7 to 17
Thermal Diffusivity, mm2/s 3.6
13
Thermal Shock Resistance, points 13
6.0 to 17

Alloy Composition

Carbon (C), % 0 to 0.3
3.1 to 3.4
Chromium (Cr), % 26 to 30
0
Iron (Fe), % 55.1 to 66
92.1 to 93.9
Manganese (Mn), % 0 to 1.5
0.5 to 0.7
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0 to 0.9
Silicon (Si), % 0 to 2.0
2.5 to 2.8
Sulfur (S), % 0 to 0.040
0 to 0.15