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AWS BNi-6 vs. EN 1.4557 Stainless Steel

AWS BNi-6 belongs to the nickel alloys classification, while EN 1.4557 stainless steel belongs to the iron alloys. 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-6 and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 62
80
Tensile Strength: Ultimate (UTS), MPa 450
560

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 880
1460
Melting Onset (Solidus), °C 880
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 9.8
17

Otherwise Unclassified Properties

Base Metal Price, % relative 55
29
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 9.4
5.6
Embodied Energy, MJ/kg 130
76
Embodied Water, L/kg 210
190

Common Calculations

Stiffness to Weight: Axial, points 11
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
19
Thermal Shock Resistance, points 20
12

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0 to 0.060
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 0
49.5 to 56.3
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 87.2 to 90
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 10 to 12
0 to 0.030
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0