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ACI-ASTM CG8M Steel vs. EN 1.1170 Steel

Both ACI-ASTM CG8M steel and EN 1.1170 steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.1170 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
16 to 17
Fatigue Strength, MPa 280
220 to 330
Impact Strength: V-Notched Charpy, J 110
28 to 35
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 550
640 to 730
Tensile Strength: Yield (Proof), MPa 300
330 to 500

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1020
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
50
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.5
Embodied Energy, MJ/kg 56
19
Embodied Water, L/kg 160
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
91 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 220
290 to 670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
23 to 26
Strength to Weight: Bending, points 19
21 to 23
Thermal Diffusivity, mm2/s 4.3
13
Thermal Shock Resistance, points 12
20 to 23

Alloy Composition

Carbon (C), % 0 to 0.080
0.25 to 0.32
Chromium (Cr), % 18 to 21
0 to 0.4
Iron (Fe), % 58.8 to 70
96.7 to 98.5
Manganese (Mn), % 0 to 1.5
1.3 to 1.7
Molybdenum (Mo), % 3.0 to 4.0
0 to 0.1
Nickel (Ni), % 9.0 to 13
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035