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ACI-ASTM CD3MWCuN Steel vs. AWS BAu-5

ACI-ASTM CD3MWCuN steel belongs to the iron alloys classification, while AWS BAu-5 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD3MWCuN steel and the bottom bar is AWS BAu-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Poisson's Ratio 0.27
0.37
Shear Modulus, GPa 80
50
Tensile Strength: Ultimate (UTS), MPa 790
210

Thermal Properties

Latent Heat of Fusion, J/g 300
180
Melting Completion (Liquidus), °C 1460
1170
Melting Onset (Solidus), °C 1410
1140
Specific Heat Capacity, J/kg-K 470
280
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 7.9
13

Common Calculations

Stiffness to Weight: Axial, points 14
5.8
Stiffness to Weight: Bending, points 25
13
Strength to Weight: Axial, points 28
4.5
Strength to Weight: Bending, points 24
6.0
Thermal Shock Resistance, points 22
9.0

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0.5 to 1.0
0
Gold (Au), % 0
29.5 to 30.5
Iron (Fe), % 56.6 to 65.3
0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 6.5 to 8.5
35.5 to 36.4
Nitrogen (N), % 0.2 to 0.3
0
Palladium (Pd), % 0
33.5 to 34.5
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0
Tungsten (W), % 0.5 to 1.0
0
Residuals, % 0
0 to 0.15