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Nickel 725 vs. AWS BNi-4

Both nickel 725 and AWS BNi-4 are nickel alloys. They have 58% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is nickel 725 and the bottom bar is AWS BNi-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 78
67
Tensile Strength: Ultimate (UTS), MPa 860
430

Thermal Properties

Latent Heat of Fusion, J/g 320
340
Melting Completion (Liquidus), °C 1340
1070
Melting Onset (Solidus), °C 1270
980
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 75
60
Density, g/cm3 8.5
8.5
Embodied Carbon, kg CO2/kg material 13
10
Embodied Energy, MJ/kg 190
140
Embodied Water, L/kg 270
220

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 28
14
Strength to Weight: Bending, points 24
15
Thermal Shock Resistance, points 23
16

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.050
Boron (B), % 0
1.5 to 2.2
Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 19 to 22.5
0
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 2.3 to 15.3
0 to 1.5
Manganese (Mn), % 0 to 0.35
0
Molybdenum (Mo), % 7.0 to 9.5
0
Nickel (Ni), % 55 to 59
91.4 to 95.5
Niobium (Nb), % 2.8 to 4.0
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.2
3.0 to 4.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 1.0 to 1.7
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5