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AWS BNi-5 vs. S30415 Stainless Steel

AWS BNi-5 belongs to the nickel alloys classification, while S30415 stainless steel belongs to the iron alloys. They have a modest 30% 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 AWS BNi-5 and the bottom bar is S30415 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 470
670

Thermal Properties

Latent Heat of Fusion, J/g 470
300
Melting Completion (Liquidus), °C 1140
1410
Melting Onset (Solidus), °C 1080
1370
Specific Heat Capacity, J/kg-K 510
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 55
15
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 8.9
3.1
Embodied Energy, MJ/kg 130
43
Embodied Water, L/kg 260
140

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.030
0
Carbon (C), % 0 to 0.060
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 18.5 to 19.5
18 to 19
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0
67.8 to 71.8
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 69.1 to 71.8
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0 to 0.020
0 to 0.045
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 9.8 to 10.5
1.0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0