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ACI-ASTM CK3MCuN Steel vs. EN 1.3961 Alloy

Both ACI-ASTM CK3MCuN steel and EN 1.3961 alloy are iron alloys. They have 73% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK3MCuN steel and the bottom bar is EN 1.3961 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
31
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 620
450
Tensile Strength: Yield (Proof), MPa 290
310

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 460
460
Thermal Expansion, µm/m-K 16
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
25
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 5.6
4.8
Embodied Energy, MJ/kg 76
66
Embodied Water, L/kg 190
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
130
Resilience: Unit (Modulus of Resilience), kJ/m3 210
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21
15
Strength to Weight: Bending, points 20
16
Thermal Shock Resistance, points 14
130

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.050
Chromium (Cr), % 19.5 to 20.5
0 to 0.25
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
60.7 to 65
Manganese (Mn), % 0 to 1.2
0 to 0.5
Molybdenum (Mo), % 6.0 to 7.0
0 to 1.0
Nickel (Ni), % 17.5 to 19.5
35 to 37
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.020