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ACI-ASTM CF10SMnN Steel vs. AWS BAu-4

ACI-ASTM CF10SMnN steel belongs to the iron alloys classification, while AWS BAu-4 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (14, 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 ACI-ASTM CF10SMnN steel and the bottom bar is AWS BAu-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.28
0.4
Shear Modulus, GPa 75
41
Tensile Strength: Ultimate (UTS), MPa 660
200

Thermal Properties

Latent Heat of Fusion, J/g 340
100
Melting Completion (Liquidus), °C 1360
950
Melting Onset (Solidus), °C 1310
950
Specific Heat Capacity, J/kg-K 500
190
Thermal Expansion, µm/m-K 16
14

Otherwise Unclassified Properties

Density, g/cm3 7.5
17

Common Calculations

Stiffness to Weight: Axial, points 14
3.6
Stiffness to Weight: Bending, points 26
9.3
Strength to Weight: Axial, points 24
3.2
Strength to Weight: Bending, points 22
4.4
Thermal Shock Resistance, points 15
9.2

Alloy Composition

Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 16 to 18
0
Gold (Au), % 0
81.5 to 82.5
Iron (Fe), % 59.1 to 65.4
0
Manganese (Mn), % 7.0 to 9.0
0
Nickel (Ni), % 8.0 to 9.0
17.4 to 18.5
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 3.5 to 4.5
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.15