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ASTM A372 Grade H Steel vs. Solder Alloy 502

ASTM A372 grade H steel belongs to the iron alloys classification, while solder alloy 502 belongs to the otherwise unclassified metals. There are 22 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 A372 grade H steel and the bottom bar is solder alloy 502.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
53
Elongation at Break, % 20 to 22
34
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
19
Tensile Strength: Ultimate (UTS), MPa 650 to 910
58

Thermal Properties

Latent Heat of Fusion, J/g 250
66
Melting Completion (Liquidus), °C 1460
350
Melting Onset (Solidus), °C 1420
220
Specific Heat Capacity, J/kg-K 470
230
Thermal Conductivity, W/m-K 45
47
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
15

Otherwise Unclassified Properties

Density, g/cm3 7.8
7.4
Embodied Carbon, kg CO2/kg material 1.5
15
Embodied Energy, MJ/kg 20
260

Common Calculations

Stiffness to Weight: Axial, points 13
4.0
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 23 to 32
2.2
Strength to Weight: Bending, points 21 to 27
4.5
Thermal Diffusivity, mm2/s 12
28
Thermal Shock Resistance, points 19 to 27
3.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.3 to 0.4
0
Chromium (Cr), % 0.4 to 0.65
0
Copper (Cu), % 0
3.5 to 4.5
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 97.3 to 98.3
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.75 to 1.1
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
0.8 to 1.2
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
93.8 to 95.7
Zinc (Zn), % 0
0 to 0.0010