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S21900 Stainless Steel vs. C74500 Nickel Silver

S21900 stainless steel belongs to the iron alloys classification, while C74500 nickel silver belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S21900 stainless steel and the bottom bar is C74500 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 50
3.0 to 24
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
44
Shear Strength, MPa 510
310 to 380
Tensile Strength: Ultimate (UTS), MPa 710
390 to 700
Tensile Strength: Yield (Proof), MPa 390
380 to 600

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 980
170
Melting Completion (Liquidus), °C 1400
1020
Melting Onset (Solidus), °C 1350
970
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 14
45
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
29
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 3.0
3.4
Embodied Energy, MJ/kg 43
54
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
12 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 380
620 to 1540
Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 26
13 to 23
Strength to Weight: Bending, points 23
14 to 21
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 15
13 to 23

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
63.5 to 66.5
Iron (Fe), % 59.4 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
9.0 to 11
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
21.2 to 27.5
Residuals, % 0
0 to 0.5