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Solder Alloy 712 vs. S30615 Stainless Steel

Solder alloy 712 belongs to the otherwise unclassified metals classification, while S30615 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is solder alloy 712 and the bottom bar is S30615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 22
39
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
75
Tensile Strength: Ultimate (UTS), MPa 51
690

Thermal Properties

Latent Heat of Fusion, J/g 62
340
Melting Completion (Liquidus), °C 220
1370
Melting Onset (Solidus), °C 220
1320
Specific Heat Capacity, J/kg-K 220
500
Thermal Conductivity, W/m-K 58
14
Thermal Expansion, µm/m-K 22
16

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.6
Embodied Carbon, kg CO2/kg material 18
3.7
Embodied Energy, MJ/kg 300
53

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 1.9
25
Strength to Weight: Bending, points 4.1
23
Thermal Diffusivity, mm2/s 35
3.7
Thermal Shock Resistance, points 3.3
16

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0.8 to 1.5
Antimony (Sb), % 0 to 0.1
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
0.16 to 0.24
Chromium (Cr), % 0
17 to 19.5
Copper (Cu), % 0.5 to 0.9
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
56.7 to 65.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0 to 0.010
13.5 to 16
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
3.2 to 4.0
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 94.9 to 96.2
0
Zinc (Zn), % 0 to 0.0010
0