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ACI-ASTM CT15C Steel vs. Chromium 33

Both ACI-ASTM CT15C steel and chromium 33 are metals with high concentrations of iron and nickel. This makes them relatively similar, despite formally belonging to different alloy families. They have 84% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
45
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 500
850
Tensile Strength: Yield (Proof), MPa 190
430

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
14

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.1
6.0
Embodied Energy, MJ/kg 88
84
Embodied Water, L/kg 190
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
320
Resilience: Unit (Modulus of Resilience), kJ/m3 93
450
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
30
Strength to Weight: Bending, points 17
25
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.015
Chromium (Cr), % 19 to 21
31 to 35
Copper (Cu), % 0
0.3 to 1.2
Iron (Fe), % 40.3 to 49.2
25.7 to 37.9
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0.5 to 2.0
Nickel (Ni), % 31 to 34
30 to 33
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010