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SAE-AISI 1140 Steel vs. Solder Alloy 122

SAE-AISI 1140 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 (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1140 steel and the bottom bar is solder alloy 122.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
10
Elastic (Young's, Tensile) Modulus, GPa 190
20
Elongation at Break, % 14 to 18
30
Poisson's Ratio 0.29
0.43
Shear Modulus, GPa 72
6.9
Tensile Strength: Ultimate (UTS), MPa 600 to 700
30

Thermal Properties

Latent Heat of Fusion, J/g 250
27
Melting Completion (Liquidus), °C 1460
300
Melting Onset (Solidus), °C 1420
270
Specific Heat Capacity, J/kg-K 470
140
Thermal Conductivity, W/m-K 51
25
Thermal Expansion, µm/m-K 13
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
75
Density, g/cm3 7.8
11
Embodied Carbon, kg CO2/kg material 1.4
5.0
Embodied Energy, MJ/kg 18
84
Embodied Water, L/kg 46
540

Common Calculations

Stiffness to Weight: Axial, points 13
1.0
Stiffness to Weight: Bending, points 24
8.2
Strength to Weight: Axial, points 21 to 25
0.77
Strength to Weight: Bending, points 20 to 22
2.0
Thermal Diffusivity, mm2/s 14
17
Thermal Shock Resistance, points 18 to 21
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), % 0.37 to 0.44
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 98.4 to 98.9
0 to 0.020
Lead (Pb), % 0
88.4 to 90.5
Manganese (Mn), % 0.7 to 1.0
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0.080 to 0.13
0
Tin (Sn), % 0
9.5 to 10.5
Zinc (Zn), % 0
0 to 0.0010