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EN 1.4971 Stainless Steel vs. Solder Alloy 121

EN 1.4971 stainless steel belongs to the iron alloys classification, while solder alloy 121 belongs to the otherwise unclassified metals. There are 23 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 EN 1.4971 stainless steel and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
11
Elastic (Young's, Tensile) Modulus, GPa 210
21
Elongation at Break, % 34
25
Poisson's Ratio 0.29
0.43
Shear Modulus, GPa 81
7.5
Tensile Strength: Ultimate (UTS), MPa 800
32

Thermal Properties

Latent Heat of Fusion, J/g 300
29
Melting Completion (Liquidus), °C 1460
290
Melting Onset (Solidus), °C 1410
230
Specific Heat Capacity, J/kg-K 450
140
Thermal Conductivity, W/m-K 13
31
Thermal Expansion, µm/m-K 15
28

Otherwise Unclassified Properties

Base Metal Price, % relative 70
80
Density, g/cm3 8.4
11
Embodied Carbon, kg CO2/kg material 7.6
5.6
Embodied Energy, MJ/kg 110
93
Embodied Water, L/kg 300
580

Common Calculations

Stiffness to Weight: Axial, points 14
1.1
Stiffness to Weight: Bending, points 24
8.6
Strength to Weight: Axial, points 26
0.84
Strength to Weight: Bending, points 23
2.1
Thermal Diffusivity, mm2/s 3.4
20
Thermal Shock Resistance, points 19
3.9

Alloy Composition

Aluminum (Al), % 0
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
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.080 to 0.16
0
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 24.3 to 37.1
0 to 0.020
Lead (Pb), % 0
83.4 to 85.5
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0 to 0.010
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
14.5 to 15.5
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.0010