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ASTM A387 Grade 21 Steel vs. Solder Alloy 114

ASTM A387 grade 21 steel belongs to the iron alloys classification, while solder alloy 114 belongs to the otherwise unclassified metals. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 21 steel and the bottom bar is solder alloy 114.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
12
Elastic (Young's, Tensile) Modulus, GPa 190
30
Elongation at Break, % 21
25
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 74
11
Tensile Strength: Ultimate (UTS), MPa 500 to 590
37

Thermal Properties

Latent Heat of Fusion, J/g 260
38
Melting Completion (Liquidus), °C 1470
240
Melting Onset (Solidus), °C 1430
180
Specific Heat Capacity, J/kg-K 470
170
Thermal Conductivity, W/m-K 41
44
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
10
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
95
Density, g/cm3 7.9
9.7
Embodied Carbon, kg CO2/kg material 1.8
8.3
Embodied Energy, MJ/kg 23
140
Embodied Water, L/kg 62
760

Common Calculations

Stiffness to Weight: Axial, points 13
1.7
Stiffness to Weight: Bending, points 24
11
Strength to Weight: Axial, points 18 to 21
1.1
Strength to Weight: Bending, points 18 to 20
2.6
Thermal Diffusivity, mm2/s 11
27
Thermal Shock Resistance, points 14 to 17
3.4

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), % 0.050 to 0.15
0
Chromium (Cr), % 2.8 to 3.3
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 94.4 to 96
0 to 0.020
Lead (Pb), % 0
58.4 to 60.5
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
39.5 to 40.5
Zinc (Zn), % 0
0 to 0.0010