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Solder Alloy 811 vs. Grade 250 Maraging Steel

Solder alloy 811 belongs to the otherwise unclassified metals classification, while grade 250 maraging steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 811 and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
190
Elongation at Break, % 38
7.3 to 17
Poisson's Ratio 0.35
0.3
Shear Modulus, GPa 19
75
Tensile Strength: Ultimate (UTS), MPa 53
970 to 1800

Thermal Properties

Latent Heat of Fusion, J/g 63
270
Melting Completion (Liquidus), °C 200
1480
Melting Onset (Solidus), °C 190
1430
Specific Heat Capacity, J/kg-K 230
450
Thermal Expansion, µm/m-K 22
12

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.2
Embodied Carbon, kg CO2/kg material 14
4.9
Embodied Energy, MJ/kg 240
65
Embodied Water, L/kg 1200
140

Common Calculations

Stiffness to Weight: Axial, points 4.0
13
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 2.0
33 to 61
Strength to Weight: Bending, points 4.3
26 to 40
Thermal Shock Resistance, points 3.3
29 to 54

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0.050 to 0.15
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.8 to 3.2
0
Boron (B), % 0
0 to 0.0030
Cadmium (Cd), % 0 to 0.0020
0
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0
0 to 0.030
Cobalt (Co), % 0
7.0 to 8.5
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
66.3 to 71.1
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0 to 0.010
17 to 19
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 87.8 to 89.7
0
Titanium (Ti), % 0
0.3 to 0.5
Zinc (Zn), % 7.5 to 8.5
0
Zirconium (Zr), % 0
0 to 0.020