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AWS BNi-1 vs. ACI-ASTM CA28MWV Steel

AWS BNi-1 belongs to the nickel alloys classification, while ACI-ASTM CA28MWV steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-1 and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 70
76
Tensile Strength: Ultimate (UTS), MPa 450
1080

Thermal Properties

Latent Heat of Fusion, J/g 360
270
Melting Completion (Liquidus), °C 1040
1470
Melting Onset (Solidus), °C 980
1430
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 55
11
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 8.8
3.1
Embodied Energy, MJ/kg 120
44
Embodied Water, L/kg 240
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
38
Strength to Weight: Bending, points 16
30
Thermal Shock Resistance, points 15
40

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0.6 to 0.9
0.2 to 0.28
Chromium (Cr), % 13 to 15
11 to 12.5
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 4.0 to 5.0
81.4 to 85.8
Manganese (Mn), % 0
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 69.8 to 75.7
0.5 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0