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SAE-AISI A4 Steel vs. Solder Alloy 503

SAE-AISI A4 steel belongs to the iron alloys classification, while solder alloy 503 belongs to the otherwise unclassified metals. There are 21 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 SAE-AISI A4 steel and the bottom bar is solder alloy 503.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
54
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
20
Tensile Strength: Ultimate (UTS), MPa 710 to 2050
57

Thermal Properties

Latent Heat of Fusion, J/g 250
69
Melting Completion (Liquidus), °C 1450
380
Melting Onset (Solidus), °C 1410
220
Specific Heat Capacity, J/kg-K 470
230
Thermal Conductivity, W/m-K 40
61
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
14
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
17

Otherwise Unclassified Properties

Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.8
16
Embodied Energy, MJ/kg 24
270

Common Calculations

Stiffness to Weight: Axial, points 13
4.1
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 25 to 73
2.1
Strength to Weight: Bending, points 23 to 46
4.4
Thermal Diffusivity, mm2/s 11
35
Thermal Shock Resistance, points 23 to 67
3.5

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 0.9 to 2.2
0
Copper (Cu), % 0 to 0.25
5.5 to 6.5
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 92 to 95.5
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 1.8 to 2.2
0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
1.8 to 2.2
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
90.8 to 92.7
Zinc (Zn), % 0
0 to 0.0010