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AWS BNi-1 vs. EN 1.3975 Stainless Steel

AWS BNi-1 belongs to the nickel alloys classification, while EN 1.3975 stainless steel belongs to the iron alloys. They have a modest 31% 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 (10, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-1 and the bottom bar is EN 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 70
76
Tensile Strength: Ultimate (UTS), MPa 450
660

Thermal Properties

Latent Heat of Fusion, J/g 360
340
Melting Completion (Liquidus), °C 1040
1360
Melting Onset (Solidus), °C 980
1320
Specific Heat Capacity, J/kg-K 500
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 55
15
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 8.8
3.3
Embodied Energy, MJ/kg 120
47
Embodied Water, L/kg 240
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 16
24
Strength to Weight: Bending, points 16
22
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0.6 to 0.9
0 to 0.050
Chromium (Cr), % 13 to 15
16 to 18
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 4.0 to 5.0
58.2 to 65.4
Manganese (Mn), % 0
7.0 to 9.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 69.8 to 75.7
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.020
0 to 0.045
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
3.5 to 4.5
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