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ACI-ASTM CT15C Steel vs. S66286 Stainless Steel

Both ACI-ASTM CT15C steel and S66286 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
17 to 40
Fatigue Strength, MPa 130
240 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 500
620 to 1020
Tensile Strength: Yield (Proof), MPa 190
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 560
780
Maximum Temperature: Mechanical, °C 1080
920
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
26
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.1
6.0
Embodied Energy, MJ/kg 88
87
Embodied Water, L/kg 190
170

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 93
190 to 1150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
22 to 36
Strength to Weight: Bending, points 17
20 to 28
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 12
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.050 to 0.15
0 to 0.080
Chromium (Cr), % 19 to 21
13.5 to 16
Iron (Fe), % 40.3 to 49.2
49.1 to 59.5
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 31 to 34
24 to 27
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 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5