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Solder Alloy 104 vs. SAE-AISI H21 Steel

Solder alloy 104 belongs to the otherwise unclassified metals classification, while SAE-AISI H21 steel belongs to the iron alloys. There are 20 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 104 and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
200
Poisson's Ratio 0.39
0.29
Shear Modulus, GPa 13
76
Tensile Strength: Ultimate (UTS), MPa 51
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 45
250
Melting Completion (Liquidus), °C 190
1630
Melting Onset (Solidus), °C 180
1580
Specific Heat Capacity, J/kg-K 180
440
Thermal Conductivity, W/m-K 50
27
Thermal Expansion, µm/m-K 25
11

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 10
4.5
Embodied Energy, MJ/kg 180
68
Embodied Water, L/kg 900
72

Common Calculations

Stiffness to Weight: Axial, points 2.3
13
Stiffness to Weight: Bending, points 12
23
Strength to Weight: Axial, points 1.6
23 to 58
Strength to Weight: Bending, points 3.4
21 to 38
Thermal Diffusivity, mm2/s 30
7.1
Thermal Shock Resistance, points 4.0
24 to 59

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.050
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.28 to 0.36
Chromium (Cr), % 0
3.0 to 3.8
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
87.6 to 93.8
Lead (Pb), % 39 to 40.5
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 0.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 59.5 to 60.5
0
Tungsten (W), % 0
8.5 to 10
Vanadium (V), % 0
0.3 to 0.6
Zinc (Zn), % 0 to 0.0010
0