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Solder Alloy 123 vs. SAE-AISI H25 Steel

Solder alloy 123 belongs to the otherwise unclassified metals classification, while SAE-AISI H25 steel belongs to the iron alloys. There are 21 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 solder alloy 123 and the bottom bar is SAE-AISI H25 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
200
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 6.2
79
Tensile Strength: Ultimate (UTS), MPa 28
710 to 1620

Thermal Properties

Latent Heat of Fusion, J/g 26
250
Melting Completion (Liquidus), °C 310
1750
Melting Onset (Solidus), °C 300
1700
Specific Heat Capacity, J/kg-K 130
420
Thermal Conductivity, W/m-K 23
26
Thermal Expansion, µm/m-K 29
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
38
Density, g/cm3 11
9.1
Embodied Carbon, kg CO2/kg material 4.5
6.2
Embodied Energy, MJ/kg 74
93
Embodied Water, L/kg 500
83

Common Calculations

Stiffness to Weight: Axial, points 0.9
12
Stiffness to Weight: Bending, points 7.8
22
Strength to Weight: Axial, points 0.69
22 to 50
Strength to Weight: Bending, points 1.8
20 to 34
Thermal Diffusivity, mm2/s 16
6.7
Thermal Shock Resistance, points 3.8
22 to 49

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.22 to 0.32
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0 to 0.080
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
77.2 to 81.3
Lead (Pb), % 93.5 to 95.5
0
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.15 to 0.4
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 4.5 to 5.5
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6
Zinc (Zn), % 0 to 0.0010
0