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AWS BNi-7 vs. AWS ERNi-1

Both AWS BNi-7 and AWS ERNi-1 are nickel alloys. They have 76% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is AWS ERNi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
180
Poisson's Ratio 0.3
0.31
Shear Modulus, GPa 67
69
Tensile Strength: Ultimate (UTS), MPa 550
470

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 890
1360
Melting Onset (Solidus), °C 890
1310
Specific Heat Capacity, J/kg-K 490
450
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 55
60
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 8.8
11
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 240
230

Common Calculations

Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 19
15
Strength to Weight: Bending, points 19
15
Thermal Shock Resistance, points 21
17

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 1.5
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 13 to 15
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.2
0 to 1.0
Manganese (Mn), % 0 to 0.040
0 to 1.0
Nickel (Ni), % 73.3 to 77.3
93 to 98
Phosphorus (P), % 9.7 to 10.5
0 to 0.030
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0 to 0.050
2.0 to 3.5
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.5