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ACI-ASTM CB7Cu-1 Steel vs. EN 1.8818 Steel

Both ACI-ASTM CB7Cu-1 steel and EN 1.8818 steel are iron alloys. They have 77% 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 CB7Cu-1 steel and the bottom bar is EN 1.8818 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
27
Fatigue Strength, MPa 420 to 590
200
Impact Strength: V-Notched Charpy, J 34
48
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
440
Tensile Strength: Yield (Proof), MPa 760 to 1180
270

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1500
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
48
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.6
Embodied Energy, MJ/kg 38
21
Embodied Water, L/kg 130
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
16
Strength to Weight: Bending, points 28 to 35
16
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 32 to 45
13

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.034
Carbon (C), % 0 to 0.070
0 to 0.15
Chromium (Cr), % 15.5 to 17.7
0 to 0.35
Copper (Cu), % 2.5 to 3.2
0 to 0.6
Iron (Fe), % 72.3 to 78.4
95.9 to 99.985
Manganese (Mn), % 0 to 0.7
0 to 1.6
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 3.6 to 4.6
0 to 0.35
Niobium (Nb), % 0 to 0.35
0 to 0.060
Nitrogen (N), % 0 to 0.050
0 to 0.017
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.1