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EN 1.3961 Alloy vs. ACI-ASTM CK3MCuN Steel

Both EN 1.3961 alloy and ACI-ASTM CK3MCuN steel 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 EN 1.3961 alloy and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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