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Solder Alloy 201 vs. ASTM A27 Cast Steel

Solder alloy 201 belongs to the otherwise unclassified metals classification, while ASTM A27 cast steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 201 and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
190
Elongation at Break, % 38
25 to 27
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 19
73
Tensile Strength: Ultimate (UTS), MPa 41
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 64
250
Melting Completion (Liquidus), °C 240
1460
Melting Onset (Solidus), °C 240
1420
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 28
52
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.0 to 7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 15
8.1

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 15
1.4
Embodied Energy, MJ/kg 250
18
Embodied Water, L/kg 1320
45 to 46

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 1.6
16 to 20
Strength to Weight: Bending, points 3.6
17 to 19
Thermal Diffusivity, mm2/s 17
14
Thermal Shock Resistance, points 2.7
15 to 18