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Solder Alloy 703 vs. Grade N7M Nickel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while grade N7M nickel belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
220
Elongation at Break, % 35
22
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 19
85
Tensile Strength: Ultimate (UTS), MPa 57
590

Thermal Properties

Latent Heat of Fusion, J/g 61
320
Melting Completion (Liquidus), °C 220
1650
Melting Onset (Solidus), °C 220
1590
Specific Heat Capacity, J/kg-K 220
390
Thermal Expansion, µm/m-K 22
9.9

Otherwise Unclassified Properties

Density, g/cm3 7.4
9.3
Embodied Carbon, kg CO2/kg material 18
16
Embodied Energy, MJ/kg 300
200

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
22
Strength to Weight: Axial, points 2.1
18
Strength to Weight: Bending, points 4.4
17
Thermal Shock Resistance, points 3.7
19

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 to 0.070
Chromium (Cr), % 0
0 to 1.0
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
0 to 3.0
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
30 to 33
Nickel (Ni), % 0 to 0.010
60.9 to 70
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0