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Grade N12MV Nickel vs. ASTM Grade HN Steel

Grade N12MV nickel belongs to the nickel alloys classification, while ASTM grade HN steel belongs to the iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 6.8
9.0
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 600
500

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 900
1080
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
26
Density, g/cm3 9.2
7.9
Embodied Carbon, kg CO2/kg material 16
4.6
Embodied Energy, MJ/kg 200
66
Embodied Water, L/kg 260
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
17
Strength to Weight: Bending, points 17
18
Thermal Shock Resistance, points 19
11

Alloy Composition

Carbon (C), % 0 to 0.12
0.2 to 0.5
Chromium (Cr), % 0 to 1.0
19 to 23
Iron (Fe), % 4.0 to 6.0
44.9 to 57.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 26 to 30
0 to 0.5
Nickel (Ni), % 60.2 to 69.8
23 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0.2 to 0.6
0