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ACI-ASTM CB7Cu-2 Steel vs. ASTM A372 Grade G Steel

Both ACI-ASTM CB7Cu-2 steel and ASTM A372 grade G 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 (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 ASTM A372 grade G steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
200 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
20 to 22
Fatigue Strength, MPa 420 to 590
310 to 380
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
650 to 910
Tensile Strength: Yield (Proof), MPa 760 to 1180
430 to 550

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
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.2
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
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
130 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
500 to 810
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
23 to 32
Strength to Weight: Bending, points 28 to 35
21 to 27
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 32 to 45
19 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.25 to 0.35
Chromium (Cr), % 14 to 15.5
0.4 to 0.65
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 73.6 to 79
97.4 to 98.4
Manganese (Mn), % 0 to 0.7
0.7 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
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 0.015
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010

Comparable Variants