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Solder Alloy 131 vs. ACI-ASTM CN7MS Steel

Solder alloy 131 belongs to the otherwise unclassified metals classification, while ACI-ASTM CN7MS steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 131 and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
200
Elongation at Break, % 47
39
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 14
77
Tensile Strength: Ultimate (UTS), MPa 31
540

Thermal Properties

Latent Heat of Fusion, J/g 46
340
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
16

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 11
5.1
Embodied Energy, MJ/kg 180
71
Embodied Water, L/kg 940
180

Common Calculations

Stiffness to Weight: Axial, points 2.4
14
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.0
19
Strength to Weight: Bending, points 2.5
19
Thermal Diffusivity, mm2/s 33
3.2
Thermal Shock Resistance, points 2.4
13

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 to 0.070
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 0 to 0.080
1.5 to 2.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
45.4 to 53.5
Lead (Pb), % 35.5 to 37.3
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0 to 0.010
22 to 25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
2.5 to 3.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 62.5 to 63.5
0
Zinc (Zn), % 0 to 0.0010
0