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ACI-ASTM CT15C Steel vs. SAE-AISI D2 Steel

Both ACI-ASTM CT15C steel and SAE-AISI D2 steel are iron alloys. They have 58% 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 ACI-ASTM CT15C steel and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
5.0 to 16
Fatigue Strength, MPa 130
310 to 860
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 500
760 to 2000
Tensile Strength: Yield (Proof), MPa 190
470 to 1510

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
31
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
4.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
8.0
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.1
3.4
Embodied Energy, MJ/kg 88
50
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 20
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
92 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 93
570 to 5940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
27 to 72
Strength to Weight: Bending, points 17
24 to 46
Thermal Diffusivity, mm2/s 3.2
8.3
Thermal Shock Resistance, points 12
25 to 67

Alloy Composition

Carbon (C), % 0.050 to 0.15
1.4 to 1.6
Chromium (Cr), % 19 to 21
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 40.3 to 49.2
81.3 to 86.9
Manganese (Mn), % 0.15 to 1.5
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 31 to 34
0 to 0.3
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 1.1