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AWS BNi-1a vs. EN 1.4655 Stainless Steel

AWS BNi-1a belongs to the nickel alloys classification, while EN 1.4655 stainless steel belongs to the iron alloys. They have a modest 24% 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 (14, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-1a and the bottom bar is EN 1.4655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 70
78
Tensile Strength: Ultimate (UTS), MPa 450
720 to 730

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Melting Completion (Liquidus), °C 1080
1420
Melting Onset (Solidus), °C 980
1370
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
15
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 8.8
2.9
Embodied Energy, MJ/kg 120
41
Embodied Water, L/kg 240
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
26
Strength to Weight: Bending, points 16
23
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 13 to 15
22 to 24
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
1.0 to 3.0
Iron (Fe), % 4.0 to 5.0
63.6 to 73.4
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.1 to 0.6
Nickel (Ni), % 70.6 to 76.3
3.5 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.020
0 to 0.035
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
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