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Solder Alloy 703 vs. ASTM Grade HN Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while ASTM grade HN steel belongs to the iron alloys. There are 21 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 ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 15
140
Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 35
9.0
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
77
Tensile Strength: Ultimate (UTS), MPa 57
500

Thermal Properties

Latent Heat of Fusion, J/g 61
310
Melting Completion (Liquidus), °C 220
1400
Melting Onset (Solidus), °C 220
1350
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 55
13
Thermal Expansion, µm/m-K 22
16

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.9
Embodied Carbon, kg CO2/kg material 18
4.6
Embodied Energy, MJ/kg 300
66

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
17
Strength to Weight: Bending, points 4.4
18
Thermal Diffusivity, mm2/s 33
3.5
Thermal Shock Resistance, points 3.7
11

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
0.2 to 0.5
Chromium (Cr), % 0
19 to 23
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
44.9 to 57.8
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
23 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0