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ACI-ASTM CT15C Steel vs. ASTM A356 Grade 2

Both ACI-ASTM CT15C steel and ASTM A356 grade 2 are iron alloys. They have 46% 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 CT15C steel and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
25
Fatigue Strength, MPa 130
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 500
510
Tensile Strength: Yield (Proof), MPa 190
270

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
410
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.4
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.1
1.5
Embodied Energy, MJ/kg 88
20
Embodied Water, L/kg 190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 93
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.25
Chromium (Cr), % 19 to 21
0
Iron (Fe), % 40.3 to 49.2
97.7 to 99.55
Manganese (Mn), % 0.15 to 1.5
0 to 0.7
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 31 to 34
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.15 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030