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ACI-ASTM CN7MS Steel vs. AWS BVAg-32

ACI-ASTM CN7MS steel belongs to the iron alloys classification, while AWS BVAg-32 belongs to the otherwise unclassified metals. There are 15 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 CN7MS steel and the bottom bar is AWS BVAg-32.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
93
Poisson's Ratio 0.28
0.37
Shear Modulus, GPa 77
34
Tensile Strength: Ultimate (UTS), MPa 540
180

Thermal Properties

Latent Heat of Fusion, J/g 340
140
Melting Completion (Liquidus), °C 1400
950
Melting Onset (Solidus), °C 1350
900
Specific Heat Capacity, J/kg-K 480
270
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Density, g/cm3 7.9
11

Common Calculations

Stiffness to Weight: Axial, points 14
4.9
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 19
4.7
Strength to Weight: Bending, points 19
6.7
Thermal Shock Resistance, points 13
8.0

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.070
0 to 0.0050
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 1.5 to 2.0
20 to 22
Iron (Fe), % 45.4 to 53.5
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 22 to 25
0
Palladium (Pd), % 0
23 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Silicon (Si), % 2.5 to 3.5
0
Silver (Ag), % 0
53 to 55
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.0010