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AWS BNi-1a vs. EN 1.4568 Stainless Steel

AWS BNi-1a belongs to the nickel alloys classification, while EN 1.4568 stainless steel belongs to the iron alloys. They have a modest 26% 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 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 70
76
Tensile Strength: Ultimate (UTS), MPa 450
830 to 1620

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Melting Completion (Liquidus), °C 1080
1420
Melting Onset (Solidus), °C 980
1380
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
13
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 8.8
2.8
Embodied Energy, MJ/kg 120
40
Embodied Water, L/kg 240
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
30 to 58
Strength to Weight: Bending, points 16
25 to 40
Thermal Shock Resistance, points 15
23 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.050
0.7 to 1.5
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0 to 0.090
Chromium (Cr), % 13 to 15
16 to 18
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 4.0 to 5.0
70.9 to 76.8
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 70.6 to 76.3
6.5 to 7.8
Phosphorus (P), % 0 to 0.020
0 to 0.040
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 0.7
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