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SAE-AISI 1070 Steel vs. Solder Alloy 702

SAE-AISI 1070 steel belongs to the iron alloys classification, while solder alloy 702 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1070 steel and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
51
Elongation at Break, % 10 to 13
21
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 72
19
Tensile Strength: Ultimate (UTS), MPa 640 to 760
53

Thermal Properties

Latent Heat of Fusion, J/g 250
61
Melting Completion (Liquidus), °C 1460
220
Melting Onset (Solidus), °C 1420
220
Specific Heat Capacity, J/kg-K 470
220
Thermal Conductivity, W/m-K 50
62
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
15
Electrical Conductivity: Equal Weight (Specific), % IACS 12
18

Otherwise Unclassified Properties

Density, g/cm3 7.8
7.4
Embodied Carbon, kg CO2/kg material 1.4
17
Embodied Energy, MJ/kg 19
290

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 23 to 27
2.0
Strength to Weight: Bending, points 21 to 24
4.2
Thermal Diffusivity, mm2/s 14
38
Thermal Shock Resistance, points 21 to 25
3.4

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 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.65 to 0.75
0
Copper (Cu), % 0
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 98.3 to 98.8
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.6 to 0.9
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silver (Ag), % 0
2.8 to 3.2
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
96.3 to 97.2
Zinc (Zn), % 0
0 to 0.0010