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ASTM A229 Spring Steel vs. Solder Alloy 142

ASTM A229 spring steel belongs to the iron alloys classification, while solder alloy 142 belongs to the otherwise unclassified metals. 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 ASTM A229 spring steel and the bottom bar is solder alloy 142.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
33
Elongation at Break, % 14
37
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 72
12
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
43

Thermal Properties

Latent Heat of Fusion, J/g 250
42
Melting Completion (Liquidus), °C 1450
210
Melting Onset (Solidus), °C 1410
180
Specific Heat Capacity, J/kg-K 470
170
Thermal Conductivity, W/m-K 50
45
Thermal Expansion, µm/m-K 12
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
11

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 1.4
9.4
Embodied Energy, MJ/kg 19
160
Embodied Water, L/kg 46
890

Common Calculations

Stiffness to Weight: Axial, points 13
2.0
Stiffness to Weight: Bending, points 24
11
Strength to Weight: Axial, points 60 to 67
1.3
Strength to Weight: Bending, points 40 to 43
2.9
Thermal Diffusivity, mm2/s 14
28
Thermal Shock Resistance, points 54 to 60
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
2.5 to 3.5
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.55 to 0.85
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 97.5 to 99
0 to 0.020
Lead (Pb), % 0
47.4 to 50
Manganese (Mn), % 0.3 to 1.2
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
47.5 to 48.5
Zinc (Zn), % 0
0 to 0.0010