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AWS BNi-1a vs. EN 1.6982 Stainless Steel

AWS BNi-1a belongs to the nickel alloys classification, while EN 1.6982 stainless steel belongs to the iron alloys. They have a modest 22% 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 1.6982 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
800

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Melting Completion (Liquidus), °C 1080
1440
Melting Onset (Solidus), °C 980
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 55
10
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 8.8
2.4
Embodied Energy, MJ/kg 120
33
Embodied Water, L/kg 240
110

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
28
Strength to Weight: Bending, points 16
25
Thermal Shock Resistance, points 15
29

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 0.050
Chromium (Cr), % 13 to 15
12 to 13.5
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 4.0 to 5.0
78.7 to 84.5
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 70.6 to 76.3
3.5 to 5.0
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