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ACI-ASTM CK3MCuN Steel vs. Automotive Grey Cast Iron

Both ACI-ASTM CK3MCuN steel and automotive grey cast iron are iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK3MCuN steel and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 39
9.6 to 14
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
69 to 70
Tensile Strength: Ultimate (UTS), MPa 620
140 to 290
Tensile Strength: Yield (Proof), MPa 290
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 300
260 to 280
Melting Completion (Liquidus), °C 1460
1380 to 1390
Melting Onset (Solidus), °C 1350
1340 to 1350
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 12
41 to 43
Thermal Expansion, µm/m-K 16
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 29
1.9 to 3.0
Density, g/cm3 8.0
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 5.6
1.5 to 1.7
Embodied Energy, MJ/kg 76
21 to 24
Embodied Water, L/kg 190
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 210
25 to 110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
5.2 to 11
Strength to Weight: Bending, points 20
8.0 to 13
Thermal Diffusivity, mm2/s 3.2
11 to 12
Thermal Shock Resistance, points 14
4.2 to 8.6