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Nickel 201 vs. S21640 Stainless Steel

Nickel 201 belongs to the nickel alloys classification, while S21640 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 201 and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 4.5 to 45
46
Fatigue Strength, MPa 42 to 210
320
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 70
78
Shear Strength, MPa 270 to 380
520
Tensile Strength: Ultimate (UTS), MPa 390 to 660
740
Tensile Strength: Yield (Proof), MPa 80 to 510
350

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 900
940
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1440
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 78
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 19
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 65
17
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 11
3.6
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 230
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 130
280
Resilience: Unit (Modulus of Resilience), kJ/m3 17 to 720
300
Stiffness to Weight: Axial, points 11
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 12 to 20
27
Strength to Weight: Bending, points 13 to 19
23
Thermal Diffusivity, mm2/s 20
4.0
Thermal Shock Resistance, points 11 to 19
16

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 0
17.5 to 19.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.4
63 to 74.3
Manganese (Mn), % 0 to 0.35
3.5 to 6.5
Molybdenum (Mo), % 0
0.5 to 2.0
Nickel (Ni), % 99 to 100
4.0 to 6.5
Niobium (Nb), % 0
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030