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ASTM A356 Grade 1 vs. ACI-ASTM CT15C Steel

Both ASTM A356 grade 1 and ACI-ASTM CT15C steel are iron alloys. They have 46% 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 ASTM A356 grade 1 and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
23
Fatigue Strength, MPa 200
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 550
500
Tensile Strength: Yield (Proof), MPa 280
190

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1080
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
36
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
6.1
Embodied Energy, MJ/kg 18
88
Embodied Water, L/kg 45
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
90
Resilience: Unit (Modulus of Resilience), kJ/m3 210
93
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 18
12

Alloy Composition

Carbon (C), % 0 to 0.35
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Iron (Fe), % 98.3 to 100
40.3 to 49.2
Manganese (Mn), % 0 to 0.7
0.15 to 1.5
Nickel (Ni), % 0
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.6
0.15 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030