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ACI-ASTM CT15C Steel vs. S32654 Stainless Steel

Both ACI-ASTM CT15C steel and S32654 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 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 S32654 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 23
45
Fatigue Strength, MPa 130
450
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
82
Tensile Strength: Ultimate (UTS), MPa 500
850
Tensile Strength: Yield (Proof), MPa 190
490

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 560
440
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 12
11
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
34
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 6.1
6.4
Embodied Energy, MJ/kg 88
87
Embodied Water, L/kg 190
220

Common Calculations

PREN (Pitting Resistance) 20
57
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
330
Resilience: Unit (Modulus of Resilience), kJ/m3 93
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 17
25
Thermal Diffusivity, mm2/s 3.2
2.9
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.020
Chromium (Cr), % 19 to 21
24 to 25
Copper (Cu), % 0
0.3 to 0.6
Iron (Fe), % 40.3 to 49.2
38.3 to 45.3
Manganese (Mn), % 0.15 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 0
7.0 to 8.0
Nickel (Ni), % 31 to 34
21 to 23
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.45 to 0.55
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050