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ASTM A266 Carbon Steel vs. Solder Alloy 704

ASTM A266 carbon steel belongs to the iron alloys classification, while solder alloy 704 belongs to the otherwise unclassified metals. 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 ASTM A266 carbon steel and the bottom bar is solder alloy 704.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
14
Elastic (Young's, Tensile) Modulus, GPa 190
51
Elongation at Break, % 21 to 26
30
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
19
Tensile Strength: Ultimate (UTS), MPa 500 to 600
55

Thermal Properties

Latent Heat of Fusion, J/g 250
62
Melting Completion (Liquidus), °C 1460
240
Melting Onset (Solidus), °C 1420
220
Specific Heat Capacity, J/kg-K 470
220
Thermal Conductivity, W/m-K 51 to 52
50
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
15

Otherwise Unclassified Properties

Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
19
Embodied Energy, MJ/kg 18 to 19
320

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 18 to 21
2.1
Strength to Weight: Bending, points 18 to 20
4.3
Thermal Diffusivity, mm2/s 14
30
Thermal Shock Resistance, points 16 to 19
3.5