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ACI-ASTM CD6MN Steel vs. AWS BNi-3

ACI-ASTM CD6MN steel belongs to the iron alloys classification, while AWS BNi-3 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 BNi-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
170
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 80
66
Tensile Strength: Ultimate (UTS), MPa 730
430

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Melting Completion (Liquidus), °C 1440
1040
Melting Onset (Solidus), °C 1390
980
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 17
60
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 3.4
9.9
Embodied Energy, MJ/kg 48
140
Embodied Water, L/kg 170
220

Common Calculations

Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 26
14
Strength to Weight: Bending, points 23
15
Thermal Shock Resistance, points 20
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 24 to 27
0
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 62.1 to 70.1
0 to 0.5
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 4.0 to 6.0
90.1 to 93.3
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 1.0
4.0 to 5.0
Sulfur (S), % 0 to 0.040
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5