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S21904 Stainless Steel vs. EN 2.4663 Nickel

S21904 stainless steel belongs to the iron alloys classification, while EN 2.4663 nickel 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 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is EN 2.4663 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17 to 51
40
Fatigue Strength, MPa 380 to 550
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
81
Shear Strength, MPa 510 to 620
540
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
780
Tensile Strength: Yield (Proof), MPa 390 to 910
310

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 980
1010
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
75
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 3.0
11
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 160
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
250
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25 to 36
25
Strength to Weight: Bending, points 23 to 29
22
Thermal Diffusivity, mm2/s 3.8
3.5
Thermal Shock Resistance, points 15 to 21
22

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.4
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.040
0.050 to 0.1
Chromium (Cr), % 19 to 21.5
20 to 23
Cobalt (Co), % 0
11 to 14
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 59.5 to 67.4
0 to 2.0
Manganese (Mn), % 8.0 to 10
0 to 0.2
Molybdenum (Mo), % 0
8.5 to 10
Nickel (Ni), % 5.5 to 7.5
48 to 59.6
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.2 to 0.6