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ASTM A369 Grade FPA vs. Solder Alloy 171

ASTM A369 grade FPA belongs to the iron alloys classification, while solder alloy 171 belongs to the otherwise unclassified metals. There are 23 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 ASTM A369 grade FPA and the bottom bar is solder alloy 171.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
16
Elastic (Young's, Tensile) Modulus, GPa 190
38
Elongation at Break, % 27
45
Poisson's Ratio 0.29
0.39
Shear Modulus, GPa 73
14
Tensile Strength: Ultimate (UTS), MPa 380
48

Thermal Properties

Latent Heat of Fusion, J/g 250
47
Melting Completion (Liquidus), °C 1460
180
Melting Onset (Solidus), °C 1420
180
Specific Heat Capacity, J/kg-K 470
190
Thermal Conductivity, W/m-K 52
50
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
12

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.4
13
Embodied Energy, MJ/kg 18
210

Common Calculations

Stiffness to Weight: Axial, points 13
2.4
Stiffness to Weight: Bending, points 24
13
Strength to Weight: Axial, points 13
1.5
Strength to Weight: Bending, points 15
3.3
Thermal Diffusivity, mm2/s 14
30
Thermal Shock Resistance, points 12
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.25
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 98.3 to 99.63
0 to 0.020
Lead (Pb), % 0
34.7 to 36.7
Manganese (Mn), % 0.27 to 0.93
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.1 to 0.5
0
Silver (Ag), % 0
1.8 to 2.2
Sulfur (S), % 0 to 0.035
0
Tin (Sn), % 0
61.5 to 62.5
Zinc (Zn), % 0
0 to 0.0010