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ACI-ASTM CG8M Steel vs. C78200 Nickel Silver

ACI-ASTM CG8M steel belongs to the iron alloys classification, while C78200 nickel silver belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG8M steel and the bottom bar is C78200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 45
3.0 to 40
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 79
43
Tensile Strength: Ultimate (UTS), MPa 550
370 to 630
Tensile Strength: Yield (Proof), MPa 300
170 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
190
Maximum Temperature: Mechanical, °C 1020
160
Melting Completion (Liquidus), °C 1450
1000
Melting Onset (Solidus), °C 1400
970
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 16
48
Thermal Expansion, µm/m-K 16
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
28
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 4.1
3.3
Embodied Energy, MJ/kg 56
52
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
18 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 220
130 to 1440
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 19
12 to 21
Strength to Weight: Bending, points 19
14 to 19
Thermal Diffusivity, mm2/s 4.3
15
Thermal Shock Resistance, points 12
12 to 21

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
63 to 67
Iron (Fe), % 58.8 to 70
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 9.0 to 13
7.0 to 9.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
20.2 to 28.5
Residuals, % 0
0 to 0.5