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ACI-ASTM CG8M Steel vs. EN 1.0031 Steel

Both ACI-ASTM CG8M steel and EN 1.0031 steel are iron alloys. They have 65% of their average alloy composition in common. There are 30 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 CG8M steel and the bottom bar is EN 1.0031 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
89
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
28
Fatigue Strength, MPa 280
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 550
310
Tensile Strength: Yield (Proof), MPa 300
210

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1020
400
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
53
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.1
1.4
Embodied Energy, MJ/kg 56
18
Embodied Water, L/kg 160
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
78
Resilience: Unit (Modulus of Resilience), kJ/m3 220
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
11
Strength to Weight: Bending, points 19
13
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 12
9.8

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 18 to 21
0
Iron (Fe), % 58.8 to 70
98.8 to 100
Manganese (Mn), % 0 to 1.5
0 to 0.7
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 9.0 to 13
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.045