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Solder Alloy 131 vs. ASTM Grade HT Steel

Solder alloy 131 belongs to the otherwise unclassified metals classification, while ASTM grade HT steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 131 and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
190
Elongation at Break, % 47
4.6
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 14
76
Tensile Strength: Ultimate (UTS), MPa 31
500

Thermal Properties

Latent Heat of Fusion, J/g 46
310
Melting Completion (Liquidus), °C 180
1390
Melting Onset (Solidus), °C 180
1340
Specific Heat Capacity, J/kg-K 190
480
Thermal Conductivity, W/m-K 55
12
Thermal Expansion, µm/m-K 25
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.9

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 11
5.4
Embodied Energy, MJ/kg 180
76
Embodied Water, L/kg 940
190

Common Calculations

Stiffness to Weight: Axial, points 2.4
13
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 1.0
18
Strength to Weight: Bending, points 2.5
18
Thermal Diffusivity, mm2/s 33
3.2
Thermal Shock Resistance, points 2.4
12

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0.2 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.35 to 0.75
Chromium (Cr), % 0
15 to 19
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
38.2 to 51.7
Lead (Pb), % 35.5 to 37.3
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
33 to 37
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 62.5 to 63.5
0
Zinc (Zn), % 0 to 0.0010
0