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SAE-AISI 1137 Steel vs. Solder Alloy 181

SAE-AISI 1137 steel belongs to the iron alloys classification, while solder alloy 181 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is solder alloy 181.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
18
Elongation at Break, % 11 to 17
41
Poisson's Ratio 0.29
0.44
Shear Modulus, GPa 73
6.1
Tensile Strength: Ultimate (UTS), MPa 700 to 760
27

Thermal Properties

Latent Heat of Fusion, J/g 250
26
Melting Completion (Liquidus), °C 1460
310
Melting Onset (Solidus), °C 1420
300
Specific Heat Capacity, J/kg-K 470
130
Thermal Conductivity, W/m-K 51
24
Thermal Expansion, µm/m-K 13
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 12
7.4

Otherwise Unclassified Properties

Density, g/cm3 7.8
11
Embodied Carbon, kg CO2/kg material 1.4
6.2
Embodied Energy, MJ/kg 19
100

Common Calculations

Stiffness to Weight: Axial, points 13
0.86
Stiffness to Weight: Bending, points 24
7.7
Strength to Weight: Axial, points 25 to 27
0.66
Strength to Weight: Bending, points 22 to 24
1.8
Thermal Diffusivity, mm2/s 14
16
Thermal Shock Resistance, points 21 to 23
3.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.32 to 0.39
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 97.8 to 98.3
0 to 0.020
Lead (Pb), % 0
96.2 to 98
Manganese (Mn), % 1.4 to 1.7
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0.080 to 0.13
0
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.0010