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S32205 Stainless Steel vs. Nickel 684

S32205 stainless steel belongs to the iron alloys classification, while nickel 684 belongs to the nickel alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. 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 S32205 stainless steel and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
310
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
11
Fatigue Strength, MPa 370
390
Poisson's Ratio 0.27
0.29
Reduction in Area, % 51
17
Shear Modulus, GPa 80
76
Shear Strength, MPa 480
710
Tensile Strength: Ultimate (UTS), MPa 740
1190
Tensile Strength: Yield (Proof), MPa 510
800

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1070
1000
Melting Completion (Liquidus), °C 1450
1370
Melting Onset (Solidus), °C 1400
1320
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 18
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.7
10
Embodied Energy, MJ/kg 50
140
Embodied Water, L/kg 160
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 630
1610
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26
40
Strength to Weight: Bending, points 23
30
Thermal Shock Resistance, points 20
34

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 22 to 23
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 63.7 to 70.4
0 to 4.0
Manganese (Mn), % 0 to 2.0
0 to 0.75
Molybdenum (Mo), % 3.0 to 3.5
3.0 to 5.0
Nickel (Ni), % 4.5 to 6.5
42.7 to 64
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0
2.5 to 3.3