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ACI-ASTM CK3MCuN Steel vs. SAE-AISI 50B60 Steel

Both ACI-ASTM CK3MCuN steel and SAE-AISI 50B60 steel are iron alloys. They have 54% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK3MCuN steel and the bottom bar is SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
12 to 20
Fatigue Strength, MPa 250
240 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 620
610 to 630
Tensile Strength: Yield (Proof), MPa 290
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
410
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
45
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
2.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
1.4
Embodied Energy, MJ/kg 76
19
Embodied Water, L/kg 190
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 210
330 to 750
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
22 to 23
Strength to Weight: Bending, points 20
20 to 21
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 14
20

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.025
0.56 to 0.64
Chromium (Cr), % 19.5 to 20.5
0.4 to 0.6
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
97.3 to 98.1
Manganese (Mn), % 0 to 1.2
0.75 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
0
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040