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Grade N12MV Nickel vs. ACI-ASTM CN7MS Steel

Grade N12MV nickel belongs to the nickel alloys classification, while ACI-ASTM CN7MS steel belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade N12MV nickel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 6.8
39
Fatigue Strength, MPa 130
200
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 600
540
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 320
340
Maximum Temperature: Mechanical, °C 900
1040
Melting Completion (Liquidus), °C 1620
1400
Melting Onset (Solidus), °C 1570
1350
Specific Heat Capacity, J/kg-K 390
480
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 75
28
Density, g/cm3 9.2
7.9
Embodied Carbon, kg CO2/kg material 16
5.1
Embodied Energy, MJ/kg 200
71
Embodied Water, L/kg 260
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
170
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 17
19
Thermal Shock Resistance, points 19
13

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.070
Chromium (Cr), % 0 to 1.0
18 to 20
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 4.0 to 6.0
45.4 to 53.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 26 to 30
2.5 to 3.0
Nickel (Ni), % 60.2 to 69.8
22 to 25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
2.5 to 3.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.2 to 0.6
0