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ACI-ASTM CG6MMN Steel vs. Ductile Cast Iron

Both ACI-ASTM CG6MMN steel and ductile cast iron are iron alloys. They have 58% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG6MMN steel and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 200
170 to 180
Elongation at Break, % 34
2.1 to 20
Poisson's Ratio 0.28
0.28 to 0.31
Shear Modulus, GPa 79
64 to 70
Tensile Strength: Ultimate (UTS), MPa 670
460 to 920
Tensile Strength: Yield (Proof), MPa 320
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1080
290
Melting Completion (Liquidus), °C 1420
1160
Melting Onset (Solidus), °C 1380
1120
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.9
Density, g/cm3 7.8
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 4.8
1.5
Embodied Energy, MJ/kg 68
21
Embodied Water, L/kg 180
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 260
280 to 1330
Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 25
24 to 26
Strength to Weight: Axial, points 24
17 to 35
Strength to Weight: Bending, points 22
18 to 29
Thermal Shock Resistance, points 14
17 to 35

Alloy Composition

Carbon (C), % 0 to 0.060
3.0 to 3.5
Chromium (Cr), % 20.5 to 23.5
0
Iron (Fe), % 51.9 to 62.1
93.7 to 95.5
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.080
Silicon (Si), % 0 to 1.0
1.5 to 2.8
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0