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AWS BNi-7 vs. AWS ER80S-B8

AWS BNi-7 belongs to the nickel alloys classification, while AWS ER80S-B8 belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is AWS ER80S-B8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
190
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 67
75
Tensile Strength: Ultimate (UTS), MPa 550
630

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 890
1460
Melting Onset (Solidus), °C 890
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 8.8
2.0
Embodied Energy, MJ/kg 120
28
Embodied Water, L/kg 240
89

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 21
17

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 13 to 15
8.0 to 10.5
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 0 to 0.2
85.6 to 90.8
Manganese (Mn), % 0 to 0.040
0.4 to 0.7
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 73.3 to 77.3
0 to 0.5
Phosphorus (P), % 9.7 to 10.5
0 to 0.025
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.5