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SAE-AISI M3 Class 1 Steel vs. Solder Alloy 702

SAE-AISI M3 class 1 steel belongs to the iron alloys classification, while solder alloy 702 belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
51
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 77
19
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
53

Thermal Properties

Latent Heat of Fusion, J/g 260
61
Melting Completion (Liquidus), °C 1610
220
Melting Onset (Solidus), °C 1570
220
Specific Heat Capacity, J/kg-K 440
220
Thermal Conductivity, W/m-K 26
62
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Density, g/cm3 8.3
7.4
Embodied Carbon, kg CO2/kg material 10
17
Embodied Energy, MJ/kg 150
290

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 23
17
Strength to Weight: Axial, points 26 to 72
2.0
Strength to Weight: Bending, points 22 to 44
4.2
Thermal Diffusivity, mm2/s 7.2
38
Thermal Shock Resistance, points 24 to 67
3.4

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 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 76.9 to 82.9
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0
Silver (Ag), % 0
2.8 to 3.2
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
96.3 to 97.2
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0
Zinc (Zn), % 0
0 to 0.0010