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SAE-AISI 1552 Steel vs. AWS BAu-2

SAE-AISI 1552 steel belongs to the iron alloys classification, while AWS BAu-2 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is SAE-AISI 1552 steel and the bottom bar is AWS BAu-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 72
36
Tensile Strength: Ultimate (UTS), MPa 760 to 840
150

Thermal Properties

Latent Heat of Fusion, J/g 250
92
Melting Completion (Liquidus), °C 1460
890
Melting Onset (Solidus), °C 1420
890
Specific Heat Capacity, J/kg-K 470
180
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Density, g/cm3 7.8
17

Common Calculations

Stiffness to Weight: Axial, points 13
3.3
Stiffness to Weight: Bending, points 24
9.1
Strength to Weight: Axial, points 27 to 30
2.4
Strength to Weight: Bending, points 24 to 25
3.6
Thermal Shock Resistance, points 26 to 29
7.1

Alloy Composition


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Carbon (C), % 0.47 to 0.55
0
Copper (Cu), % 0
19.4 to 20.5
Gold (Au), % 0
79.5 to 80.5
Iron (Fe), % 97.9 to 98.3
0
Manganese (Mn), % 1.2 to 1.5
0
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0 to 0.050
0
Residuals, % 0
0 to 0.15