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SAE-AISI S5 Steel vs. AWS BAu-2

SAE-AISI S5 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 (10, 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 S5 steel and the bottom bar is AWS BAu-2.

SAE-AISI S5 (T41905) Shock-Resisting SteelAWS BAu-2 (P00800) Filler Metal
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 680 to 1940
150

Thermal Properties

Latent Heat of Fusion, J/g 280
92
Melting Completion (Liquidus), °C 1440
890
Melting Onset (Solidus), °C 1400
890
Specific Heat Capacity, J/kg-K 480
180
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Density, g/cm3 7.7
17

Common Calculations

Stiffness to Weight: Axial, points 13
3.3
Stiffness to Weight: Bending, points 25
9.1
Strength to Weight: Axial, points 25 to 70
2.4
Strength to Weight: Bending, points 22 to 45
3.6
Thermal Shock Resistance, points 23 to 65
7.1

Alloy Composition

Carbon (C), % 0.5 to 0.65
0
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.25
19.4 to 20.5
Gold (Au), % 0
79.5 to 80.5
Iron (Fe), % 93.6 to 97
0
Manganese (Mn), % 0.6 to 1.0
0
Molybdenum (Mo), % 0.2 to 1.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.8 to 2.3
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0 to 0.35
0
Residuals, % 0
0 to 0.15