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EN 1.8505 Steel vs. ACI-ASTM CD4MCuN Steel

Both EN 1.8505 steel and ACI-ASTM CD4MCuN steel are iron alloys. They have 66% 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 1.8505 steel and the bottom bar is ACI-ASTM CD4MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13
18
Fatigue Strength, MPa 540
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 1050
770
Tensile Strength: Yield (Proof), MPa 860
550

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 39
17
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.5
Embodied Energy, MJ/kg 22
49
Embodied Water, L/kg 65
180

Common Calculations

PREN (Pitting Resistance) 2.6
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1950
760
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
28
Strength to Weight: Bending, points 30
24
Thermal Diffusivity, mm2/s 11
4.5
Thermal Shock Resistance, points 31
21

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.28 to 0.35
0 to 0.040
Chromium (Cr), % 1.5 to 1.8
24.5 to 26.5
Copper (Cu), % 0
2.7 to 3.3
Iron (Fe), % 95.4 to 97.1
59.5 to 66.3
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.4
1.7 to 2.3
Nickel (Ni), % 0
4.7 to 6.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.040