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S21640 Stainless Steel vs. Nickel 200

S21640 stainless steel belongs to the iron alloys classification, while nickel 200 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S21640 stainless steel and the bottom bar is nickel 200.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 46
23 to 44
Fatigue Strength, MPa 320
120 to 350
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
70
Shear Strength, MPa 520
300 to 340
Tensile Strength: Ultimate (UTS), MPa 740
420 to 540
Tensile Strength: Yield (Proof), MPa 350
120 to 370

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 940
900
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1440
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
69
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
18
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
18

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 300
42 to 370
Stiffness to Weight: Axial, points 14
11
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 27
13 to 17
Strength to Weight: Bending, points 23
14 to 17
Thermal Diffusivity, mm2/s 4.0
17
Thermal Shock Resistance, points 16
13 to 16

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 63 to 74.3
0 to 0.4
Manganese (Mn), % 3.5 to 6.5
0 to 0.35
Molybdenum (Mo), % 0.5 to 2.0
0
Nickel (Ni), % 4.0 to 6.5
99 to 100
Niobium (Nb), % 0.1 to 1.0
0
Nitrogen (N), % 0.080 to 0.3
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010