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Solder Alloy 201 vs. SAE-AISI 4340M Steel

Solder alloy 201 belongs to the otherwise unclassified metals classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 24 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 201 and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 13
710
Elastic (Young's, Tensile) Modulus, GPa 50
190
Elongation at Break, % 38
6.0
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 19
72
Tensile Strength: Ultimate (UTS), MPa 41
2340

Thermal Properties

Latent Heat of Fusion, J/g 64
280
Melting Completion (Liquidus), °C 240
1440
Melting Onset (Solidus), °C 240
1400
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 28
38
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 15
9.1

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 15
1.9
Embodied Energy, MJ/kg 250
26
Embodied Water, L/kg 1320
55

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 1.6
84
Strength to Weight: Bending, points 3.6
51
Thermal Diffusivity, mm2/s 17
10
Thermal Shock Resistance, points 2.7
70

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
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 1.0
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
93.3 to 94.8
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 0 to 0.010
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.012
Silicon (Si), % 0
1.5 to 1.8
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.012
Tin (Sn), % 94 to 95.5
0
Vanadium (V), % 0
0.050 to 0.1
Zinc (Zn), % 0 to 0.0010
0