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AISI 321 Stainless Steel vs. C77000 Nickel Silver

AISI 321 stainless steel belongs to the iron alloys classification, while C77000 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 AISI 321 stainless steel and the bottom bar is C77000 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
46
Tensile Strength: Ultimate (UTS), MPa 590 to 690
420 to 800

Thermal Properties

Latent Heat of Fusion, J/g 290
200
Maximum Temperature: Mechanical, °C 870
180
Melting Completion (Liquidus), °C 1430
1050
Melting Onset (Solidus), °C 1400
1000
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 16
29
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
6.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.2
4.1
Embodied Energy, MJ/kg 45
63
Embodied Water, L/kg 140
300

Common Calculations

Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 21 to 25
14 to 27
Strength to Weight: Bending, points 20 to 22
15 to 23
Thermal Diffusivity, mm2/s 4.1
8.8
Thermal Shock Resistance, points 13 to 15
15 to 28

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
53.5 to 56.5
Iron (Fe), % 65.3 to 74
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.5
Nickel (Ni), % 9.0 to 12
16.5 to 19.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.7
0
Zinc (Zn), % 0
22.7 to 30
Residuals, % 0
0 to 0.5