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EN 1.4951 Stainless Steel vs. AWS BNi-2

EN 1.4951 stainless steel belongs to the iron alloys classification, while AWS BNi-2 belongs to the nickel alloys. They have a modest 31% 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 (16, in this case) are not shown.

For each property being compared, the top bar is EN 1.4951 stainless steel and the bottom bar is AWS BNi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.27
0.3
Shear Modulus, GPa 79
68
Tensile Strength: Ultimate (UTS), MPa 630
440

Thermal Properties

Latent Heat of Fusion, J/g 300
360
Melting Completion (Liquidus), °C 1410
1000
Melting Onset (Solidus), °C 1360
970
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
55
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 4.3
9.3
Embodied Energy, MJ/kg 61
130
Embodied Water, L/kg 190
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 21
16
Thermal Shock Resistance, points 14
16

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0.040 to 0.080
0 to 0.060
Chromium (Cr), % 24 to 26
6.0 to 8.0
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 49.1 to 57
2.5 to 3.5
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 19 to 22
79.1 to 84.8
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.7
4.0 to 5.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5