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S30815 Stainless Steel vs. Grade N7M Nickel

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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