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AISI 309 Stainless Steel vs. Solder Alloy 122

AISI 309 stainless steel belongs to the iron alloys classification, while solder alloy 122 belongs to the otherwise unclassified metals. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI 309 stainless steel and the bottom bar is solder alloy 122.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
10
Elastic (Young's, Tensile) Modulus, GPa 200
20
Elongation at Break, % 34 to 47
30
Poisson's Ratio 0.27
0.43
Shear Modulus, GPa 78
6.9
Tensile Strength: Ultimate (UTS), MPa 600 to 710
30

Thermal Properties

Latent Heat of Fusion, J/g 290
27
Melting Completion (Liquidus), °C 1450
300
Melting Onset (Solidus), °C 1400
270
Specific Heat Capacity, J/kg-K 480
140
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 15
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
75
Density, g/cm3 7.8
11
Embodied Carbon, kg CO2/kg material 3.6
5.0
Embodied Energy, MJ/kg 51
84
Embodied Water, L/kg 170
540

Common Calculations

Stiffness to Weight: Axial, points 14
1.0
Stiffness to Weight: Bending, points 25
8.2
Strength to Weight: Axial, points 21 to 25
0.77
Strength to Weight: Bending, points 20 to 23
2.0
Thermal Diffusivity, mm2/s 4.3
17
Thermal Shock Resistance, points 14 to 16
3.9

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), % 0 to 0.2
0
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 58 to 66
0 to 0.020
Lead (Pb), % 0
88.4 to 90.5
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 15
0 to 0.010
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
9.5 to 10.5
Zinc (Zn), % 0
0 to 0.0010