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ACI-ASTM CB7Cu-1 Steel vs. EN 1.1221 Steel

Both ACI-ASTM CB7Cu-1 steel and EN 1.1221 steel are iron alloys. They have 76% of their average alloy composition in common. There are 29 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 ACI-ASTM CB7Cu-1 steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
10 to 21
Fatigue Strength, MPa 420 to 590
240 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
730 to 870
Tensile Strength: Yield (Proof), MPa 760 to 1180
390 to 550

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
48
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 38
19
Embodied Water, L/kg 130
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
410 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
26 to 31
Strength to Weight: Bending, points 28 to 35
23 to 26
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 32 to 45
23 to 28

Alloy Composition

Carbon (C), % 0 to 0.070
0.57 to 0.65
Chromium (Cr), % 15.5 to 17.7
0 to 0.4
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 72.3 to 78.4
97.1 to 98.8
Manganese (Mn), % 0 to 0.7
0.6 to 0.9
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 3.6 to 4.6
0 to 0.4
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035