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ACI-ASTM CT15C Steel vs. S46500 Stainless Steel

Both ACI-ASTM CT15C steel and S46500 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 26 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 ACI-ASTM CT15C steel and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
2.3 to 14
Fatigue Strength, MPa 130
550 to 890
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 500
1260 to 1930
Tensile Strength: Yield (Proof), MPa 190
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 560
680
Maximum Temperature: Mechanical, °C 1080
780
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.1
3.6
Embodied Energy, MJ/kg 88
51
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 20
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
43 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
44 to 68
Strength to Weight: Bending, points 17
33 to 44
Thermal Shock Resistance, points 12
44 to 67

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.020
Chromium (Cr), % 19 to 21
11 to 12.5
Iron (Fe), % 40.3 to 49.2
72.6 to 76.1
Manganese (Mn), % 0.15 to 1.5
0 to 0.25
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 31 to 34
10.7 to 11.3
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.15 to 1.5
0 to 0.25
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8