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ACI-ASTM CD3MN Steel vs. AWS BVAg-31

ACI-ASTM CD3MN steel belongs to the iron alloys classification, while AWS BVAg-31 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 CD3MN steel and the bottom bar is AWS BVAg-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
90
Poisson's Ratio 0.27
0.36
Shear Modulus, GPa 79
33
Tensile Strength: Ultimate (UTS), MPa 710
180

Thermal Properties

Latent Heat of Fusion, J/g 300
150
Melting Completion (Liquidus), °C 1450
850
Melting Onset (Solidus), °C 1400
820
Specific Heat Capacity, J/kg-K 480
280
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Density, g/cm3 7.8
10

Common Calculations

Stiffness to Weight: Axial, points 14
4.9
Stiffness to Weight: Bending, points 25
15
Strength to Weight: Axial, points 25
4.9
Strength to Weight: Bending, points 23
7.0
Thermal Shock Resistance, points 20
7.8

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.030
0 to 0.0050
Chromium (Cr), % 21 to 23.5
0
Copper (Cu), % 0 to 1.0
31 to 33
Iron (Fe), % 62.6 to 71.9
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.1 to 0.3
0
Palladium (Pd), % 0
8.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
57 to 59
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 0.0010