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ACI-ASTM CB7Cu-2 Steel vs. EN 1.7231 Steel

Both ACI-ASTM CB7Cu-2 steel and EN 1.7231 steel are iron alloys. They have 78% of their average alloy composition in common. There are 29 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-2 steel and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
11 to 12
Fatigue Strength, MPa 420 to 590
360 to 500
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
790 to 930
Tensile Strength: Yield (Proof), MPa 760 to 1180
570 to 800

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 38
20
Embodied Water, L/kg 130
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
870 to 1700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
28 to 33
Strength to Weight: Bending, points 28 to 35
24 to 27
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 32 to 45
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.38 to 0.45
Chromium (Cr), % 14 to 15.5
0.8 to 1.2
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 73.6 to 79
96.4 to 98.1
Manganese (Mn), % 0 to 0.7
0.6 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 4.5 to 5.5
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
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants