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ACI-ASTM CB7Cu-1 Steel vs. ACI-ASTM CT15C Steel

Both ACI-ASTM CB7Cu-1 steel and ACI-ASTM CT15C steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 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-1 steel and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 11
23
Fatigue Strength, MPa 420 to 590
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
500
Tensile Strength: Yield (Proof), MPa 760 to 1180
190

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1500
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.6
6.1
Embodied Energy, MJ/kg 38
88
Embodied Water, L/kg 130
190

Common Calculations

PREN (Pitting Resistance) 17
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
90
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
93
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
17
Strength to Weight: Bending, points 28 to 35
17
Thermal Diffusivity, mm2/s 4.6
3.2
Thermal Shock Resistance, points 32 to 45
12

Alloy Composition

Carbon (C), % 0 to 0.070
0.050 to 0.15
Chromium (Cr), % 15.5 to 17.7
19 to 21
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 72.3 to 78.4
40.3 to 49.2
Manganese (Mn), % 0 to 0.7
0.15 to 1.5
Nickel (Ni), % 3.6 to 4.6
31 to 34
Niobium (Nb), % 0 to 0.35
0.5 to 1.5
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030