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S46500 Stainless Steel vs. Nickel 684

S46500 stainless steel belongs to the iron alloys classification, while nickel 684 belongs to the nickel alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 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 S46500 stainless steel and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 2.3 to 14
11
Fatigue Strength, MPa 550 to 890
390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
76
Shear Strength, MPa 730 to 1120
710
Tensile Strength: Ultimate (UTS), MPa 1260 to 1930
1190
Tensile Strength: Yield (Proof), MPa 1120 to 1810
800

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 780
1000
Melting Completion (Liquidus), °C 1450
1370
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
75
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 3.6
10
Embodied Energy, MJ/kg 51
140
Embodied Water, L/kg 120
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 210
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 44 to 68
40
Strength to Weight: Bending, points 33 to 44
30
Thermal Shock Resistance, points 44 to 67
34

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.020
0 to 0.15
Chromium (Cr), % 11 to 12.5
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 72.6 to 76.1
0 to 4.0
Manganese (Mn), % 0 to 0.25
0 to 0.75
Molybdenum (Mo), % 0.75 to 1.3
3.0 to 5.0
Nickel (Ni), % 10.7 to 11.3
42.7 to 64
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 0.25
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 1.5 to 1.8
2.5 to 3.3