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Grade N7M Nickel vs. S30815 Stainless Steel

Grade N7M nickel belongs to the nickel alloys classification, while S30815 stainless steel belongs to the iron alloys. There are 25 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 grade N7M nickel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 22
45
Fatigue Strength, MPa 190
320
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 85
77
Tensile Strength: Ultimate (UTS), MPa 590
680
Tensile Strength: Yield (Proof), MPa 310
350

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 900
1020
Melting Completion (Liquidus), °C 1650
1400
Melting Onset (Solidus), °C 1590
1360
Specific Heat Capacity, J/kg-K 390
490
Thermal Expansion, µm/m-K 9.9
17

Otherwise Unclassified Properties

Base Metal Price, % relative 75
17
Density, g/cm3 9.3
7.7
Embodied Carbon, kg CO2/kg material 16
3.3
Embodied Energy, MJ/kg 200
47
Embodied Water, L/kg 270
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
260
Resilience: Unit (Modulus of Resilience), kJ/m3 220
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 17
22
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.070
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 1.0
20 to 22
Iron (Fe), % 0 to 3.0
62.8 to 68.4
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 30 to 33
0
Nickel (Ni), % 60.9 to 70
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.4 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030