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AWS BNi-7 vs. AWS E240

AWS BNi-7 belongs to the nickel alloys classification, while AWS E240 belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is AWS E240.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 67
77
Tensile Strength: Ultimate (UTS), MPa 550
770

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 890
1390
Melting Onset (Solidus), °C 890
1350
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 55
14
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 8.8
3.0
Embodied Energy, MJ/kg 120
42
Embodied Water, L/kg 240
160

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 21
19

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 13 to 15
17 to 19
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 0.2
58.6 to 68.4
Manganese (Mn), % 0 to 0.040
10.5 to 13.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 73.3 to 77.3
4.0 to 6.0
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 9.7 to 10.5
0 to 0.040
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0