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S64512 Stainless Steel vs. Nickel 684

S64512 stainless steel belongs to the iron alloys classification, while nickel 684 belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S64512 stainless steel and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
310
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
11
Fatigue Strength, MPa 540
390
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34
17
Shear Modulus, GPa 76
76
Shear Strength, MPa 700
710
Tensile Strength: Ultimate (UTS), MPa 1140
1190
Tensile Strength: Yield (Proof), MPa 890
800

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 750
1000
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.3
10
Embodied Energy, MJ/kg 47
140
Embodied Water, L/kg 110
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
120
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
1610
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 40
40
Strength to Weight: Bending, points 31
30
Thermal Shock Resistance, points 42
34

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.080 to 0.15
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), % 80.6 to 84.7
0 to 4.0
Manganese (Mn), % 0.5 to 0.9
0 to 0.75
Molybdenum (Mo), % 1.5 to 2.0
3.0 to 5.0
Nickel (Ni), % 2.0 to 3.0
42.7 to 64
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
2.5 to 3.3
Vanadium (V), % 0.25 to 0.4
0