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SAE-AISI A4 Steel vs. Solder Alloy 115

SAE-AISI A4 steel belongs to the iron alloys classification, while solder alloy 115 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A4 steel and the bottom bar is solder alloy 115.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
28
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 73
10
Tensile Strength: Ultimate (UTS), MPa 710 to 2050
36

Thermal Properties

Latent Heat of Fusion, J/g 250
36
Melting Completion (Liquidus), °C 1450
250
Melting Onset (Solidus), °C 1410
180
Specific Heat Capacity, J/kg-K 470
160
Thermal Conductivity, W/m-K 40
43
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
95
Density, g/cm3 7.8
9.9
Embodied Carbon, kg CO2/kg material 1.8
7.8
Embodied Energy, MJ/kg 24
130
Embodied Water, L/kg 59
730

Common Calculations

Stiffness to Weight: Axial, points 13
1.6
Stiffness to Weight: Bending, points 24
10
Strength to Weight: Axial, points 25 to 73
1.0
Strength to Weight: Bending, points 23 to 46
2.4
Thermal Diffusivity, mm2/s 11
27
Thermal Shock Resistance, points 23 to 67
3.4

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 0.9 to 2.2
0
Copper (Cu), % 0 to 0.25
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 92 to 95.5
0 to 0.020
Lead (Pb), % 0
63.4 to 65.5
Manganese (Mn), % 1.8 to 2.2
0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
34.5 to 35.5
Zinc (Zn), % 0
0 to 0.0010