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SAE-AISI 8620 Steel vs. C77400 Nickel Silver

SAE-AISI 8620 steel belongs to the iron alloys classification, while C77400 nickel silver belongs to the copper alloys. There are 27 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 SAE-AISI 8620 steel and the bottom bar is C77400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 13 to 31
25
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
42
Shear Strength, MPa 340 to 420
360
Tensile Strength: Ultimate (UTS), MPa 520 to 690
570
Tensile Strength: Yield (Proof), MPa 360 to 570
250

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 410
130
Melting Completion (Liquidus), °C 1460
810
Melting Onset (Solidus), °C 1420
770
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
31

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
3.5
Embodied Energy, MJ/kg 20
57
Embodied Water, L/kg 50
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 150
120
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 880
290
Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 18 to 24
20
Strength to Weight: Bending, points 18 to 22
19
Thermal Shock Resistance, points 15 to 20
18

Alloy Composition

Carbon (C), % 0.18 to 0.23
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
43 to 47
Iron (Fe), % 96.9 to 98
0
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0.7 to 0.9
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
9.0 to 11
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
41.3 to 48
Residuals, % 0
0 to 0.5