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ACI-ASTM CK3MCuN Steel vs. AWS BAg-3

ACI-ASTM CK3MCuN steel belongs to the iron alloys classification, while AWS BAg-3 belongs to the otherwise unclassified metals. There are 17 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 CK3MCuN steel and the bottom bar is AWS BAg-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
80
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
30
Tensile Strength: Ultimate (UTS), MPa 620
170

Thermal Properties

Latent Heat of Fusion, J/g 300
120
Melting Completion (Liquidus), °C 1460
690
Melting Onset (Solidus), °C 1350
630
Specific Heat Capacity, J/kg-K 460
290
Thermal Expansion, µm/m-K 16
22

Otherwise Unclassified Properties

Density, g/cm3 8.0
9.3
Embodied Carbon, kg CO2/kg material 5.6
49
Embodied Energy, MJ/kg 76
770

Common Calculations

Stiffness to Weight: Axial, points 14
4.8
Stiffness to Weight: Bending, points 24
15
Strength to Weight: Axial, points 21
5.1
Strength to Weight: Bending, points 20
7.3
Thermal Shock Resistance, points 14
6.9

Alloy Composition

Cadmium (Cd), % 0
15 to 17
Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
14.5 to 16.5
Iron (Fe), % 49.5 to 56.3
0
Manganese (Mn), % 0 to 1.2
0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
2.5 to 3.5
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
49 to 51
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0
13.5 to 17.5
Residuals, % 0
0 to 0.15