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S38815 Stainless Steel vs. Nickel 908

S38815 stainless steel belongs to the iron alloys classification, while nickel 908 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 (4, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 34
11
Fatigue Strength, MPa 230
450
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 74
70
Shear Strength, MPa 410
800
Tensile Strength: Ultimate (UTS), MPa 610
1340
Tensile Strength: Yield (Proof), MPa 290
930

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Mechanical, °C 860
920
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1310
1380
Specific Heat Capacity, J/kg-K 500
460
Thermal Expansion, µm/m-K 15
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
50
Density, g/cm3 7.5
8.3
Embodied Carbon, kg CO2/kg material 3.8
9.3
Embodied Energy, MJ/kg 54
140
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 18
4.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
140
Resilience: Unit (Modulus of Resilience), kJ/m3 220
2340
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22
45
Strength to Weight: Bending, points 21
33
Thermal Shock Resistance, points 15
61

Alloy Composition

Aluminum (Al), % 0 to 0.3
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 13 to 15
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0.75 to 1.5
0 to 0.5
Iron (Fe), % 56.1 to 67
35.6 to 44.6
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 5.5 to 6.5
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8