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Solder Alloy 703 vs. SAE-AISI M44 Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while SAE-AISI M44 steel belongs to the iron alloys. There are 19 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 solder alloy 703 and the bottom bar is SAE-AISI M44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
200
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
78
Tensile Strength: Ultimate (UTS), MPa 57
870 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 61
270
Melting Completion (Liquidus), °C 220
1590
Melting Onset (Solidus), °C 220
1540
Specific Heat Capacity, J/kg-K 220
440
Thermal Conductivity, W/m-K 55
14
Thermal Expansion, µm/m-K 22
12

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.4
Embodied Carbon, kg CO2/kg material 18
9.9
Embodied Energy, MJ/kg 300
150

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 2.1
28 to 75
Strength to Weight: Bending, points 4.4
24 to 46
Thermal Diffusivity, mm2/s 33
3.7
Thermal Shock Resistance, points 3.7
27 to 70

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
1.1 to 1.2
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
11 to 12.3
Copper (Cu), % 0 to 0.050
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
65.3 to 70.6
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.3 to 0.55
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 95.8 to 96.7
0
Tungsten (W), % 0
5.0 to 5.8
Vanadium (V), % 0
1.9 to 2.2
Zinc (Zn), % 0 to 0.0010
0