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ACI-ASTM CF3M Steel vs. AWS BNi-3

ACI-ASTM CF3M 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 (14, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF3M 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 0.28
0.31
Shear Modulus, GPa 78
66
Tensile Strength: Ultimate (UTS), MPa 520
430

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Melting Completion (Liquidus), °C 1440
1040
Melting Onset (Solidus), °C 1430
980
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 19
60
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 3.8
9.9
Embodied Energy, MJ/kg 53
140
Embodied Water, L/kg 160
220

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 18
14
Strength to Weight: Bending, points 18
15
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 17 to 21
0
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 59.9 to 72
0 to 0.5
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 13
90.1 to 93.3
Phosphorus (P), % 0 to 0.040
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 1.5
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