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Nickel 908 vs. S21603 Stainless Steel

Nickel 908 belongs to the nickel alloys classification, while S21603 stainless steel belongs to the iron alloys. They have 51% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 908 and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 11
45
Fatigue Strength, MPa 450
360
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 70
79
Shear Strength, MPa 800
490
Tensile Strength: Ultimate (UTS), MPa 1340
690
Tensile Strength: Yield (Proof), MPa 930
390

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 920
990
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 8.6
17

Otherwise Unclassified Properties

Base Metal Price, % relative 50
17
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 9.3
3.6
Embodied Energy, MJ/kg 140
50
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 4.2
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
270
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
380
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 45
25
Strength to Weight: Bending, points 33
22
Thermal Shock Resistance, points 61
15

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0 to 0.012
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
17.5 to 22
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 35.6 to 44.6
57.6 to 67.8
Manganese (Mn), % 0 to 1.0
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 47 to 51
5.0 to 7.0
Niobium (Nb), % 2.7 to 3.3
0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 1.2 to 1.8
0