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S21904 Stainless Steel vs. C73500 Nickel Silver

S21904 stainless steel belongs to the iron alloys classification, while C73500 nickel silver belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is C73500 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
47
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
380 to 580

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 980
220
Melting Completion (Liquidus), °C 1400
1140
Melting Onset (Solidus), °C 1350
1090
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 14
36
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
35
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 3.0
4.0
Embodied Energy, MJ/kg 43
61
Embodied Water, L/kg 160
300

Common Calculations

Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25 to 36
12 to 19
Strength to Weight: Bending, points 23 to 29
13 to 18
Thermal Diffusivity, mm2/s 3.8
10
Thermal Shock Resistance, points 15 to 21
13 to 19

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
70.5 to 73.5
Iron (Fe), % 59.5 to 67.4
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 8.0 to 10
0 to 0.5
Nickel (Ni), % 5.5 to 7.5
16.5 to 19.5
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
5.7 to 13
Residuals, % 0
0 to 0.5