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Grade 350 Maraging Steel vs. Solder Alloy 121

Grade 350 maraging steel belongs to the iron alloys classification, while solder alloy 121 belongs to the otherwise unclassified metals. There are 20 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 grade 350 maraging steel and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
21
Elongation at Break, % 4.1 to 18
25
Poisson's Ratio 0.3
0.43
Shear Modulus, GPa 75
7.5
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
32

Thermal Properties

Latent Heat of Fusion, J/g 270
29
Melting Completion (Liquidus), °C 1470
290
Melting Onset (Solidus), °C 1420
230
Specific Heat Capacity, J/kg-K 450
140
Thermal Expansion, µm/m-K 12
28

Otherwise Unclassified Properties

Base Metal Price, % relative 39
80
Density, g/cm3 8.2
11
Embodied Carbon, kg CO2/kg material 5.6
5.6
Embodied Energy, MJ/kg 74
93
Embodied Water, L/kg 160
580

Common Calculations

Stiffness to Weight: Axial, points 13
1.1
Stiffness to Weight: Bending, points 23
8.6
Strength to Weight: Axial, points 38 to 82
0.84
Strength to Weight: Bending, points 29 to 49
2.1
Thermal Shock Resistance, points 35 to 74
3.9

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Boron (B), % 0 to 0.0030
0
Cadmium (Cd), % 0
0 to 0.0050
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0
Cobalt (Co), % 11.5 to 12.5
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 61.2 to 64.6
0 to 0.020
Lead (Pb), % 0
83.4 to 85.5
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0 to 0.010
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
14.5 to 15.5
Titanium (Ti), % 1.3 to 1.6
0
Zinc (Zn), % 0
0 to 0.0010
Zirconium (Zr), % 0 to 0.020
0