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ASTM A369 Grade FP21 vs. C74400 Nickel Silver

ASTM A369 grade FP21 belongs to the iron alloys classification, while C74400 nickel silver belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP21 and the bottom bar is C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
43
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 74
39
Shear Strength, MPa 300
240
Tensile Strength: Ultimate (UTS), MPa 470
350
Tensile Strength: Yield (Proof), MPa 240
120

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Maximum Temperature: Mechanical, °C 470
140
Melting Completion (Liquidus), °C 1470
930
Melting Onset (Solidus), °C 1430
910
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 41
120
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
29

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
25
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.8
2.9
Embodied Energy, MJ/kg 23
48
Embodied Water, L/kg 61
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
120
Resilience: Unit (Modulus of Resilience), kJ/m3 150
63
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
12
Strength to Weight: Bending, points 17
14
Thermal Diffusivity, mm2/s 11
37
Thermal Shock Resistance, points 14
12

Alloy Composition

Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 2.7 to 3.4
0
Copper (Cu), % 0
62 to 66
Iron (Fe), % 94.3 to 96.2
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.8 to 1.1
0
Nickel (Ni), % 0
2.0 to 4.0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
29.6 to 36
Residuals, % 0
0 to 0.3