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S31730 Stainless Steel vs. EN 2.4650 Nickel

S31730 stainless steel belongs to the iron alloys classification, while EN 2.4650 nickel belongs to the nickel alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is EN 2.4650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
34
Fatigue Strength, MPa 170
480
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Shear Strength, MPa 370
730
Tensile Strength: Ultimate (UTS), MPa 540
1090
Tensile Strength: Yield (Proof), MPa 200
650

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 990
1010
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
80
Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 4.6
10
Embodied Energy, MJ/kg 63
140
Embodied Water, L/kg 180
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
320
Resilience: Unit (Modulus of Resilience), kJ/m3 99
1030
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 19
36
Strength to Weight: Bending, points 18
28
Thermal Shock Resistance, points 12
33

Alloy Composition

Aluminum (Al), % 0
0.3 to 0.6
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0.040 to 0.080
Chromium (Cr), % 17 to 19
19 to 21
Cobalt (Co), % 0
19 to 21
Copper (Cu), % 4.0 to 5.0
0 to 0.2
Iron (Fe), % 52.4 to 61
0 to 0.7
Manganese (Mn), % 0 to 2.0
0 to 0.6
Molybdenum (Mo), % 3.0 to 4.0
5.6 to 6.1
Nickel (Ni), % 15 to 16.5
46.9 to 54.2
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.0070
Titanium (Ti), % 0
1.9 to 2.4