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AWS BNi-5a vs. EN 1.4878 Stainless Steel

AWS BNi-5a belongs to the nickel alloys classification, while EN 1.4878 stainless steel belongs to the iron alloys. They have a modest 29% 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-5a and the bottom bar is EN 1.4878 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 480
610

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Melting Completion (Liquidus), °C 1150
1430
Melting Onset (Solidus), °C 1070
1380
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 55
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 9.0
3.2
Embodied Energy, MJ/kg 130
46
Embodied Water, L/kg 260
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
20
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 1.0 to 1.5
0
Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 18.5 to 19.5
17 to 19
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
65 to 74
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 70.1 to 73.5
9.0 to 12
Phosphorus (P), % 0 to 0.020
0 to 0.045
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.0 to 7.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0 to 0.050
0 to 0.8
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0