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AWS BNi-4 vs. ACI-ASTM CA15M Steel

AWS BNi-4 belongs to the nickel alloys classification, while ACI-ASTM CA15M 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-4 and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 67
76
Tensile Strength: Ultimate (UTS), MPa 430
690

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Melting Completion (Liquidus), °C 1070
1450
Melting Onset (Solidus), °C 980
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
10

Otherwise Unclassified Properties

Base Metal Price, % relative 60
7.5
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 10
2.1
Embodied Energy, MJ/kg 140
29
Embodied Water, L/kg 220
100

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 14
25
Strength to Weight: Bending, points 15
22
Thermal Shock Resistance, points 16
25

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 1.5 to 2.2
0
Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 0
11.5 to 14
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 1.5
82.1 to 88.4
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0.15 to 1.0
Nickel (Ni), % 91.4 to 95.5
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
0 to 0.65
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0