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ACI-ASTM CT15C Steel vs. SAE-AISI 1070 Steel

Both ACI-ASTM CT15C steel and SAE-AISI 1070 steel 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 (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is SAE-AISI 1070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
10 to 13
Fatigue Strength, MPa 130
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 500
640 to 760
Tensile Strength: Yield (Proof), MPa 190
420 to 560

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
400
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
50
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
10
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.1
1.4
Embodied Energy, MJ/kg 88
19
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
59 to 86
Resilience: Unit (Modulus of Resilience), kJ/m3 93
470 to 850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
23 to 27
Strength to Weight: Bending, points 17
21 to 24
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
21 to 25

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.65 to 0.75
Chromium (Cr), % 19 to 21
0
Iron (Fe), % 40.3 to 49.2
98.3 to 98.8
Manganese (Mn), % 0.15 to 1.5
0.6 to 0.9
Nickel (Ni), % 31 to 34
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 1.5
0
Sulfur (S), % 0 to 0.030
0 to 0.050