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ACI-ASTM CT15C Steel vs. ACI-ASTM CK3MCuN Steel

Both ACI-ASTM CT15C steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
39
Fatigue Strength, MPa 130
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 500
620
Tensile Strength: Yield (Proof), MPa 190
290

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 560
420
Maximum Temperature: Mechanical, °C 1080
1090
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1350
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
29
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 6.1
5.6
Embodied Energy, MJ/kg 88
76
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 20
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
200
Resilience: Unit (Modulus of Resilience), kJ/m3 93
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.025
Chromium (Cr), % 19 to 21
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 40.3 to 49.2
49.5 to 56.3
Manganese (Mn), % 0.15 to 1.5
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 31 to 34
17.5 to 19.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010