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Solder Alloy 201 vs. S40945 Stainless Steel

Solder alloy 201 belongs to the otherwise unclassified metals classification, while S40945 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is solder alloy 201 and the bottom bar is S40945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 13
160
Elastic (Young's, Tensile) Modulus, GPa 50
190
Elongation at Break, % 38
25
Poisson's Ratio 0.35
0.28
Shear Modulus, GPa 19
75
Tensile Strength: Ultimate (UTS), MPa 41
430

Thermal Properties

Latent Heat of Fusion, J/g 64
270
Melting Completion (Liquidus), °C 240
1450
Melting Onset (Solidus), °C 240
1410
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 28
26
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 15
3.3

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 15
2.2
Embodied Energy, MJ/kg 250
31
Embodied Water, L/kg 1320
94

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 1.6
15
Strength to Weight: Bending, points 3.6
16
Thermal Diffusivity, mm2/s 17
6.9
Thermal Shock Resistance, points 2.7
15

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 4.5 to 5.5
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 0.030
Chromium (Cr), % 0
10.5 to 11.7
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
85.1 to 89.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.010
0 to 0.5
Niobium (Nb), % 0
0.18 to 0.4
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 94 to 95.5
0
Titanium (Ti), % 0
0.050 to 0.2
Zinc (Zn), % 0 to 0.0010
0