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Solder Alloy 704 vs. EN 1.8151 Steel

Solder alloy 704 belongs to the otherwise unclassified metals classification, while EN 1.8151 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is EN 1.8151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
200 to 540
Elastic (Young's, Tensile) Modulus, GPa 51
190
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
72
Tensile Strength: Ultimate (UTS), MPa 55
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 62
270
Melting Completion (Liquidus), °C 240
1440
Melting Onset (Solidus), °C 220
1400
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 50
50
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 15
8.6

Otherwise Unclassified Properties

Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 19
1.8
Embodied Energy, MJ/kg 320
25

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
24 to 70
Strength to Weight: Bending, points 4.3
22 to 45
Thermal Diffusivity, mm2/s 30
14
Thermal Shock Resistance, points 3.5
20 to 58

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
0.4 to 0.5
Chromium (Cr), % 0
0.4 to 0.8
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
95.9 to 97.2
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.6 to 0.9
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
1.3 to 1.7
Silver (Ag), % 4.8 to 5.2
0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 94.3 to 95.2
0
Vanadium (V), % 0
0.1 to 0.2
Zinc (Zn), % 0 to 0.0010
0