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AISI 301L Stainless Steel vs. Solder Alloy 121

AISI 301L stainless steel belongs to the iron alloys classification, while solder alloy 121 belongs to the otherwise unclassified metals. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 301L stainless steel and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
11
Elastic (Young's, Tensile) Modulus, GPa 200
21
Elongation at Break, % 22 to 50
25
Poisson's Ratio 0.28
0.43
Shear Modulus, GPa 77
7.5
Tensile Strength: Ultimate (UTS), MPa 620 to 1040
32

Thermal Properties

Latent Heat of Fusion, J/g 280
29
Melting Completion (Liquidus), °C 1430
290
Melting Onset (Solidus), °C 1390
230
Specific Heat Capacity, J/kg-K 480
140
Thermal Conductivity, W/m-K 15
31
Thermal Expansion, µm/m-K 16
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
7.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
80
Density, g/cm3 7.8
11
Embodied Carbon, kg CO2/kg material 2.7
5.6
Embodied Energy, MJ/kg 39
93
Embodied Water, L/kg 130
580

Common Calculations

Stiffness to Weight: Axial, points 14
1.1
Stiffness to Weight: Bending, points 25
8.6
Strength to Weight: Axial, points 22 to 37
0.84
Strength to Weight: Bending, points 21 to 29
2.1
Thermal Diffusivity, mm2/s 4.1
20
Thermal Shock Resistance, points 14 to 24
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 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 70.7 to 78
0 to 0.020
Lead (Pb), % 0
83.4 to 85.5
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 6.0 to 8.0
0 to 0.010
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.045
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
14.5 to 15.5
Zinc (Zn), % 0
0 to 0.0010