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ACI-ASTM CK20 Steel vs. Solder Alloy 402

ACI-ASTM CK20 steel belongs to the iron alloys classification, while solder alloy 402 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is solder alloy 402.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
52
Elongation at Break, % 37
20
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 78
19
Tensile Strength: Ultimate (UTS), MPa 530
57

Thermal Properties

Latent Heat of Fusion, J/g 310
64
Melting Completion (Liquidus), °C 1400
310
Melting Onset (Solidus), °C 1430
230
Specific Heat Capacity, J/kg-K 480
230
Thermal Conductivity, W/m-K 14
61
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
15
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
18

Otherwise Unclassified Properties

Density, g/cm3 7.8
7.3
Embodied Carbon, kg CO2/kg material 4.4
15
Embodied Energy, MJ/kg 62
250
Embodied Water, L/kg 190
1180

Common Calculations

Stiffness to Weight: Axial, points 14
3.9
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 19
2.2
Strength to Weight: Bending, points 19
4.5
Thermal Diffusivity, mm2/s 3.7
37
Thermal Shock Resistance, points 13
3.6

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 to 0.2
0
Chromium (Cr), % 23 to 27
0
Copper (Cu), % 0
2.5 to 3.5
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 46.7 to 58
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
95.9 to 97.5
Zinc (Zn), % 0
0 to 0.0010