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ACI-ASTM CB7Cu-1 Steel vs. EN 1.7108 Steel

Both ACI-ASTM CB7Cu-1 steel and EN 1.7108 steel are iron alloys. They have 77% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 1.7108 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
200 to 510
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1500
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
46
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
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.1
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 38
20
Embodied Water, L/kg 130
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34 to 48
24 to 75
Strength to Weight: Bending, points 28 to 35
22 to 47
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 32 to 45
20 to 63

Alloy Composition

Carbon (C), % 0 to 0.070
0.57 to 0.65
Chromium (Cr), % 15.5 to 17.7
0.2 to 0.45
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 72.3 to 78.4
95.9 to 96.9
Manganese (Mn), % 0 to 0.7
0.7 to 1.0
Nickel (Ni), % 3.6 to 4.6
0
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.0
1.6 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.025