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S21904 Stainless Steel vs. C75400 Nickel Silver

S21904 stainless steel belongs to the iron alloys classification, while C75400 nickel silver belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is C75400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 17 to 51
2.0 to 43
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
46
Shear Strength, MPa 510 to 620
250 to 370
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
370 to 630
Tensile Strength: Yield (Proof), MPa 390 to 910
130 to 590

Thermal Properties

Latent Heat of Fusion, J/g 290
200
Maximum Temperature: Mechanical, °C 980
190
Melting Completion (Liquidus), °C 1400
1080
Melting Onset (Solidus), °C 1350
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 14
36
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
7.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
32
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 3.0
3.8
Embodied Energy, MJ/kg 43
59
Embodied Water, L/kg 160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
12 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
75 to 1450
Stiffness to Weight: Axial, points 14
7.9
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25 to 36
12 to 21
Strength to Weight: Bending, points 23 to 29
13 to 19
Thermal Diffusivity, mm2/s 3.8
11
Thermal Shock Resistance, points 15 to 21
12 to 21

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
63.5 to 66.5
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
14 to 16
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
16.2 to 22.5
Residuals, % 0
0 to 0.5