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ACI-ASTM CT15C Steel vs. N08330 Stainless Steel

Both ACI-ASTM CT15C steel and N08330 stainless steel are iron alloys. They have a very high 96% 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 N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 130
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 500
550
Tensile Strength: Yield (Proof), MPa 190
230

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 560
420
Maximum Temperature: Mechanical, °C 1080
1050
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 36
32
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 6.1
5.4
Embodied Energy, MJ/kg 88
77
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
150
Resilience: Unit (Modulus of Resilience), kJ/m3 93
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 3.2
3.1
Thermal Shock Resistance, points 12
13

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.080
Chromium (Cr), % 19 to 21
17 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 40.3 to 49.2
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Nickel (Ni), % 31 to 34
34 to 37
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
0.75 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tin (Sn), % 0
0 to 0.025