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Solder Alloy 117 vs. ASTM A231 Spring Steel

Solder alloy 117 belongs to the otherwise unclassified metals classification, while ASTM A231 spring steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 117 and the bottom bar is ASTM A231 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 11
540
Elastic (Young's, Tensile) Modulus, GPa 23
190
Elongation at Break, % 20
14
Poisson's Ratio 0.42
0.29
Shear Modulus, GPa 8.1
73
Tensile Strength: Ultimate (UTS), MPa 33
1790

Thermal Properties

Latent Heat of Fusion, J/g 31
250
Melting Completion (Liquidus), °C 280
1460
Melting Onset (Solidus), °C 180
1410
Specific Heat Capacity, J/kg-K 150
470
Thermal Conductivity, W/m-K 37
52
Thermal Expansion, µm/m-K 28
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 85
2.3
Density, g/cm3 11
7.8
Embodied Carbon, kg CO2/kg material 6.1
2.0
Embodied Energy, MJ/kg 100
28
Embodied Water, L/kg 610
51

Common Calculations

Stiffness to Weight: Axial, points 1.2
13
Stiffness to Weight: Bending, points 9.0
24
Strength to Weight: Axial, points 0.88
64
Strength to Weight: Bending, points 2.2
42
Thermal Diffusivity, mm2/s 24
14
Thermal Shock Resistance, points 3.7
53

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
96.7 to 97.7
Lead (Pb), % 78.4 to 80.5
0
Manganese (Mn), % 0
0.7 to 0.9
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 19.5 to 20.5
0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.0010
0