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AISI 439 Stainless Steel vs. Solder Alloy 123

AISI 439 stainless steel belongs to the iron alloys classification, while solder alloy 123 belongs to the otherwise unclassified metals. There are 25 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 AISI 439 stainless steel and the bottom bar is solder alloy 123.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
8.0
Elastic (Young's, Tensile) Modulus, GPa 200
18
Elongation at Break, % 23
45
Poisson's Ratio 0.28
0.44
Shear Modulus, GPa 77
6.2
Tensile Strength: Ultimate (UTS), MPa 490
28

Thermal Properties

Latent Heat of Fusion, J/g 280
26
Melting Completion (Liquidus), °C 1510
310
Melting Onset (Solidus), °C 1430
300
Specific Heat Capacity, J/kg-K 480
130
Thermal Conductivity, W/m-K 25
23
Thermal Expansion, µm/m-K 11
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
75
Density, g/cm3 7.7
11
Embodied Carbon, kg CO2/kg material 2.3
4.5
Embodied Energy, MJ/kg 34
74
Embodied Water, L/kg 120
500

Common Calculations

Stiffness to Weight: Axial, points 14
0.9
Stiffness to Weight: Bending, points 25
7.8
Strength to Weight: Axial, points 18
0.69
Strength to Weight: Bending, points 18
1.8
Thermal Diffusivity, mm2/s 6.7
16
Thermal Shock Resistance, points 16
3.8

Alloy Composition

Aluminum (Al), % 0 to 0.15
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 77.1 to 82.8
0 to 0.020
Lead (Pb), % 0
93.5 to 95.5
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.5
0 to 0.010
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
4.5 to 5.5
Titanium (Ti), % 0.2 to 1.1
0
Zinc (Zn), % 0
0 to 0.0010