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ACI-ASTM CB7Cu-1 Steel vs. SAE-AISI 50B60 Steel

Both ACI-ASTM CB7Cu-1 steel and SAE-AISI 50B60 steel are iron alloys. They have 77% 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 SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
12 to 20
Fatigue Strength, MPa 420 to 590
240 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
610 to 630
Tensile Strength: Yield (Proof), MPa 760 to 1180
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
45
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
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 38
19
Embodied Water, L/kg 130
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
330 to 750
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
22 to 23
Strength to Weight: Bending, points 28 to 35
20 to 21
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 32 to 45
20

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.070
0.56 to 0.64
Chromium (Cr), % 15.5 to 17.7
0.4 to 0.6
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 72.3 to 78.4
97.3 to 98.1
Manganese (Mn), % 0 to 0.7
0.75 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 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040