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S38815 Stainless Steel vs. Nickel 690

S38815 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. 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 S38815 stainless steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
90
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
3.4 to 34
Fatigue Strength, MPa 230
180 to 300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Shear Strength, MPa 410
420 to 570
Tensile Strength: Ultimate (UTS), MPa 610
640 to 990
Tensile Strength: Yield (Proof), MPa 290
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 370
320
Maximum Temperature: Mechanical, °C 860
1010
Melting Completion (Liquidus), °C 1360
1380
Melting Onset (Solidus), °C 1310
1340
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
14

Otherwise Unclassified Properties

Base Metal Price, % relative 19
50
Density, g/cm3 7.5
8.3
Embodied Carbon, kg CO2/kg material 3.8
8.2
Embodied Energy, MJ/kg 54
120
Embodied Water, L/kg 140
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 220
160 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
21 to 33
Strength to Weight: Bending, points 21
20 to 27
Thermal Shock Resistance, points 15
16 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 13 to 15
27 to 31
Copper (Cu), % 0.75 to 1.5
0 to 0.5
Iron (Fe), % 56.1 to 67
7.0 to 11
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
58 to 66
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 5.5 to 6.5
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.015