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Solder Alloy 301 vs. SAE-AISI 9255 Steel

Solder alloy 301 belongs to the otherwise unclassified metals classification, while SAE-AISI 9255 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is solder alloy 301 and the bottom bar is SAE-AISI 9255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 23
200
Elastic (Young's, Tensile) Modulus, GPa 40
190
Elongation at Break, % 51
21
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 15
72
Tensile Strength: Ultimate (UTS), MPa 55
680
Tensile Strength: Yield (Proof), MPa 49
390

Thermal Properties

Latent Heat of Fusion, J/g 55
280
Melting Completion (Liquidus), °C 140
1430
Melting Onset (Solidus), °C 140
1390
Specific Heat Capacity, J/kg-K 160
480
Thermal Conductivity, W/m-K 19
46
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
8.6

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 13
1.5
Embodied Energy, MJ/kg 210
20

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
120
Resilience: Unit (Modulus of Resilience), kJ/m3 30
400
Stiffness to Weight: Axial, points 2.5
13
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.8
24
Strength to Weight: Bending, points 3.7
22
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 7.2
21

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), % 56.5 to 59
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.51 to 0.59
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
96.2 to 97
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.7 to 1.0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
1.8 to 2.2
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 41 to 43
0
Zinc (Zn), % 0 to 0.0010
0