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ACI-ASTM CN7MS Steel vs. EN 1.3961 Alloy

Both ACI-ASTM CN7MS steel and EN 1.3961 alloy are iron alloys. They have 74% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7MS 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 77
72
Tensile Strength: Ultimate (UTS), MPa 540
450
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 16
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
25
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 5.1
4.8
Embodied Energy, MJ/kg 71
66
Embodied Water, L/kg 180
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
15
Strength to Weight: Bending, points 19
16
Thermal Shock Resistance, points 13
130

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.050
Chromium (Cr), % 18 to 20
0 to 0.25
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 45.4 to 53.5
60.7 to 65
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 2.5 to 3.0
0 to 1.0
Nickel (Ni), % 22 to 25
35 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 2.5 to 3.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020