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S34565 Stainless Steel vs. Grade N7M Nickel

S34565 stainless steel belongs to the iron alloys classification, while grade N7M nickel belongs to the nickel alloys. They have a modest 25% 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 (10, in this case) are not shown.

For each property being compared, the top bar is S34565 stainless steel and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 39
22
Fatigue Strength, MPa 400
190
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 80
85
Tensile Strength: Ultimate (UTS), MPa 900
590
Tensile Strength: Yield (Proof), MPa 470
310

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1420
1650
Melting Onset (Solidus), °C 1380
1590
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 15
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 28
75
Density, g/cm3 7.9
9.3
Embodied Carbon, kg CO2/kg material 5.3
16
Embodied Energy, MJ/kg 73
200
Embodied Water, L/kg 210
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
110
Resilience: Unit (Modulus of Resilience), kJ/m3 540
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 32
18
Strength to Weight: Bending, points 26
17
Thermal Shock Resistance, points 22
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 23 to 25
0 to 1.0
Iron (Fe), % 43.2 to 51.6
0 to 3.0
Manganese (Mn), % 5.0 to 7.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
30 to 33
Nickel (Ni), % 16 to 18
60.9 to 70
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030