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Solder Alloy 131 vs. EN 1.4959 Stainless Steel

Solder alloy 131 belongs to the otherwise unclassified metals classification, while EN 1.4959 stainless 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 EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
200
Elongation at Break, % 47
40
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 14
77
Tensile Strength: Ultimate (UTS), MPa 31
630

Thermal Properties

Latent Heat of Fusion, J/g 46
300
Melting Completion (Liquidus), °C 180
1400
Melting Onset (Solidus), °C 180
1350
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
2.0

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
200

Common Calculations

Stiffness to Weight: Axial, points 2.4
14
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 1.0
22
Strength to Weight: Bending, points 2.5
20
Thermal Diffusivity, mm2/s 33
3.2
Thermal Shock Resistance, points 2.4
15

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0.25 to 0.65
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
0.050 to 0.1
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.080
0 to 0.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
39.4 to 50.5
Lead (Pb), % 35.5 to 37.3
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.010
30 to 34
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.7
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 62.5 to 63.5
0
Titanium (Ti), % 0
0.25 to 0.65
Zinc (Zn), % 0 to 0.0010
0