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ACI-ASTM CF8M Steel vs. EN 1.0402 Steel

Both ACI-ASTM CF8M steel and EN 1.0402 steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 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 CF8M steel and the bottom bar is EN 1.0402 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
24
Fatigue Strength, MPa 280
170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 540
460
Tensile Strength: Yield (Proof), MPa 290
240

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
50
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 53
19
Embodied Water, L/kg 160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
94
Resilience: Unit (Modulus of Resilience), kJ/m3 210
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
16
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 4.3
13
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0 to 0.080
0.17 to 0.24
Chromium (Cr), % 18 to 21
0 to 0.4
Iron (Fe), % 60.3 to 71
97.7 to 99.43
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.1
Nickel (Ni), % 9.0 to 12
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.045