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SAE-AISI D5 Steel vs. ACI-ASTM CT15C Steel

Both SAE-AISI D5 steel and ACI-ASTM CT15C steel are iron alloys. They have 58% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D5 steel 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, % 5.4 to 14
23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
500

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.5
6.1
Embodied Energy, MJ/kg 51
88
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 15
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 73
17
Strength to Weight: Bending, points 24 to 46
17
Thermal Diffusivity, mm2/s 7.4
3.2
Thermal Shock Resistance, points 26 to 67
12

Alloy Composition

Carbon (C), % 1.4 to 1.6
0.050 to 0.15
Chromium (Cr), % 11 to 13
19 to 21
Cobalt (Co), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 77.9 to 84.4
40.3 to 49.2
Manganese (Mn), % 0 to 0.6
0.15 to 1.5
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.030
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
Vanadium (V), % 0 to 1.0
0