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Solder Alloy 711 vs. ASTM A387 Grade 21L Class 1

Solder alloy 711 belongs to the otherwise unclassified metals classification, while ASTM A387 grade 21L class 1 belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 711 and the bottom bar is ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 15
150
Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 19
21
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
74
Tensile Strength: Ultimate (UTS), MPa 49
500

Thermal Properties

Latent Heat of Fusion, J/g 61
260
Melting Completion (Liquidus), °C 220
1470
Melting Onset (Solidus), °C 220
1430
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 58
41
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 16
8.8

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.9
Embodied Carbon, kg CO2/kg material 17
1.8
Embodied Energy, MJ/kg 290
23

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 1.8
18
Strength to Weight: Bending, points 4.0
18
Thermal Diffusivity, mm2/s 35
11
Thermal Shock Resistance, points 3.1
14

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 0.3 to 0.7
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
94.4 to 96.1
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 2.8 to 3.2
0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 95.6 to 96.9
0
Zinc (Zn), % 0 to 0.0010
0