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S38815 Stainless Steel vs. N08221 Nickel

S38815 stainless steel belongs to the iron alloys classification, while N08221 nickel belongs to the nickel alloys. They have 60% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 230
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Shear Strength, MPa 410
410
Tensile Strength: Ultimate (UTS), MPa 610
610
Tensile Strength: Yield (Proof), MPa 290
270

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Maximum Temperature: Mechanical, °C 860
980
Melting Completion (Liquidus), °C 1360
1440
Melting Onset (Solidus), °C 1310
1390
Specific Heat Capacity, J/kg-K 500
460
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 19
44
Density, g/cm3 7.5
8.3
Embodied Carbon, kg CO2/kg material 3.8
7.9
Embodied Energy, MJ/kg 54
110
Embodied Water, L/kg 140
240

Common Calculations

PREN (Pitting Resistance) 18
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
170
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 21
19
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0 to 0.3
0 to 0.2
Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 13 to 15
20 to 22
Copper (Cu), % 0.75 to 1.5
1.5 to 3.0
Iron (Fe), % 56.1 to 67
22 to 33.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
5.0 to 6.5
Nickel (Ni), % 13 to 17
39 to 46
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 5.5 to 6.5
0 to 0.050
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.0