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AISI 312 Stainless Steel vs. Solder Alloy 181

AISI 312 stainless steel belongs to the iron alloys classification, while solder alloy 181 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 312 stainless steel and the bottom bar is solder alloy 181.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
18
Elongation at Break, % 28
41
Poisson's Ratio 0.27
0.44
Shear Modulus, GPa 80
6.1
Tensile Strength: Ultimate (UTS), MPa 780
27

Thermal Properties

Latent Heat of Fusion, J/g 300
26
Melting Completion (Liquidus), °C 1430
310
Melting Onset (Solidus), °C 1390
300
Specific Heat Capacity, J/kg-K 480
130
Thermal Conductivity, W/m-K 16
24
Thermal Expansion, µm/m-K 13
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.4

Otherwise Unclassified Properties

Density, g/cm3 7.7
11
Embodied Carbon, kg CO2/kg material 3.4
6.2
Embodied Energy, MJ/kg 48
100

Common Calculations

Stiffness to Weight: Axial, points 15
0.86
Stiffness to Weight: Bending, points 25
7.7
Strength to Weight: Axial, points 28
0.66
Strength to Weight: Bending, points 24
1.8
Thermal Diffusivity, mm2/s 4.3
16
Thermal Shock Resistance, points 21
3.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
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 0.030
0
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 62.2 to 69.2
0 to 0.020
Lead (Pb), % 0
96.2 to 98
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 1.2 to 2.0
0
Nickel (Ni), % 5.5 to 6.5
0 to 0.010
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.0010