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AWS BNi-7 vs. EN 1.4872 Stainless Steel

AWS BNi-7 belongs to the nickel alloys classification, while EN 1.4872 stainless steel belongs to the iron alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. 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-7 and the bottom bar is EN 1.4872 stainless steel.

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
79
Tensile Strength: Ultimate (UTS), MPa 550
950

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 890
1390
Melting Onset (Solidus), °C 890
1340
Specific Heat Capacity, J/kg-K 490
490
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 55
17
Density, g/cm3 8.0
7.6
Embodied Carbon, kg CO2/kg material 8.8
3.3
Embodied Energy, MJ/kg 120
47
Embodied Water, L/kg 240
180

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 19
35
Strength to Weight: Bending, points 19
28
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0.2 to 0.3
Chromium (Cr), % 13 to 15
24 to 26
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
54.2 to 61.6
Manganese (Mn), % 0 to 0.040
8.0 to 10
Nickel (Ni), % 73.3 to 77.3
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 9.7 to 10.5
0 to 0.045
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 0.015
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0