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EN 1.0425 Steel vs. ACI-ASTM CK20 Steel

Both EN 1.0425 steel and ACI-ASTM CK20 steel are iron alloys. They have 54% 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 EN 1.0425 steel and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
37
Fatigue Strength, MPa 190
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 470
530
Tensile Strength: Yield (Proof), MPa 260
260

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
14
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
4.4
Embodied Energy, MJ/kg 20
62
Embodied Water, L/kg 48
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98
160
Resilience: Unit (Modulus of Resilience), kJ/m3 180
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 0.020 to 0.024
0
Carbon (C), % 0 to 0.2
0 to 0.2
Chromium (Cr), % 0 to 0.3
23 to 27
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.9 to 99.18
46.7 to 58
Manganese (Mn), % 0.8 to 1.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.080
0 to 0.5
Nickel (Ni), % 0 to 0.3
19 to 22
Niobium (Nb), % 0 to 0.020
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.020
0