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AISI 420 Stainless Steel vs. C78200 Nickel Silver

AISI 420 stainless steel belongs to the iron alloys classification, while C78200 nickel silver belongs to the copper 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 AISI 420 stainless steel and the bottom bar is C78200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 8.0 to 15
3.0 to 40
Poisson's Ratio 0.28
0.32
Rockwell B Hardness 84
65 to 90
Shear Modulus, GPa 76
43
Shear Strength, MPa 420 to 1010
280 to 400
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
370 to 630
Tensile Strength: Yield (Proof), MPa 380 to 1310
170 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
190
Maximum Temperature: Mechanical, °C 620
160
Melting Completion (Liquidus), °C 1510
1000
Melting Onset (Solidus), °C 1450
970
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 27
48
Thermal Expansion, µm/m-K 10
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
28
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.0
3.3
Embodied Energy, MJ/kg 28
52
Embodied Water, L/kg 100
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
18 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
130 to 1440
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25 to 62
12 to 21
Strength to Weight: Bending, points 22 to 41
14 to 19
Thermal Diffusivity, mm2/s 7.3
15
Thermal Shock Resistance, points 25 to 62
12 to 21

Alloy Composition

Carbon (C), % 0.15 to 0.4
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
63 to 67
Iron (Fe), % 82.3 to 87.9
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
7.0 to 9.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
20.2 to 28.5
Residuals, % 0
0 to 0.5