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SAE-AISI M4 Steel vs. Solder Alloy 811

SAE-AISI M4 steel belongs to the iron alloys classification, while solder alloy 811 belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is solder alloy 811.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
52
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 76
19
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
53

Thermal Properties

Latent Heat of Fusion, J/g 260
63
Melting Completion (Liquidus), °C 1610
200
Melting Onset (Solidus), °C 1560
190
Specific Heat Capacity, J/kg-K 440
230
Thermal Conductivity, W/m-K 25
59
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Density, g/cm3 8.3
7.3
Embodied Carbon, kg CO2/kg material 14
14
Embodied Energy, MJ/kg 210
240
Embodied Water, L/kg 110
1200

Common Calculations

Stiffness to Weight: Axial, points 13
4.0
Stiffness to Weight: Bending, points 23
17
Strength to Weight: Axial, points 26 to 72
2.0
Strength to Weight: Bending, points 23 to 45
4.3
Thermal Diffusivity, mm2/s 6.9
35
Thermal Shock Resistance, points 24 to 68
3.3

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
2.8 to 3.2
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 1.3 to 1.4
0
Chromium (Cr), % 3.8 to 4.8
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), % 75.9 to 81.4
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.3 to 5.5
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
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
87.8 to 89.7
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0
Zinc (Zn), % 0
7.5 to 8.5