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ACI-ASTM CD6MN Steel vs. AWS BAg-21

ACI-ASTM CD6MN steel belongs to the iron alloys classification, while AWS BAg-21 belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD6MN steel and the bottom bar is AWS BAg-21.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
85
Poisson's Ratio 0.27
0.36
Shear Modulus, GPa 80
31
Tensile Strength: Ultimate (UTS), MPa 730
150

Thermal Properties

Latent Heat of Fusion, J/g 300
140
Melting Completion (Liquidus), °C 1440
800
Melting Onset (Solidus), °C 1390
690
Specific Heat Capacity, J/kg-K 480
280
Thermal Expansion, µm/m-K 13
19

Otherwise Unclassified Properties

Density, g/cm3 7.7
9.8
Embodied Energy, MJ/kg 48
970

Common Calculations

Stiffness to Weight: Axial, points 15
4.8
Stiffness to Weight: Bending, points 25
15
Strength to Weight: Axial, points 26
4.2
Strength to Weight: Bending, points 23
6.4
Thermal Shock Resistance, points 20
6.6

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 24 to 27
0
Copper (Cu), % 0
27.5 to 29.5
Iron (Fe), % 62.1 to 70.1
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 4.0 to 6.0
2.0 to 3.0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
62 to 64
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
5.0 to 7.0
Residuals, % 0
0 to 0.15