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Solder Alloy 715 vs. S21800 Stainless Steel

Solder alloy 715 belongs to the otherwise unclassified metals classification, while S21800 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is solder alloy 715 and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 16
210
Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 21
40
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
75
Tensile Strength: Ultimate (UTS), MPa 30
740

Thermal Properties

Latent Heat of Fusion, J/g 61
340
Melting Completion (Liquidus), °C 220
1360
Melting Onset (Solidus), °C 220
1310
Specific Heat Capacity, J/kg-K 220
500
Thermal Expansion, µm/m-K 22
16

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.5
Embodied Carbon, kg CO2/kg material 16
3.1
Embodied Energy, MJ/kg 270
45

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
26
Strength to Weight: Axial, points 1.1
27
Strength to Weight: Bending, points 2.9
24
Thermal Shock Resistance, points 1.9
17

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
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 to 0.1
Chromium (Cr), % 0
16 to 18
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
59.1 to 65.4
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
7.0 to 9.0
Nickel (Ni), % 0 to 0.010
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0
3.5 to 4.5
Silver (Ag), % 0.8 to 1.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 97.4 to 98.7
0
Zinc (Zn), % 0 to 0.0010
0