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AWS BNi-5a vs. S30435 Stainless Steel

AWS BNi-5a belongs to the nickel alloys classification, while S30435 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 (16, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-5a and the bottom bar is S30435 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 480
510

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Melting Completion (Liquidus), °C 1150
1420
Melting Onset (Solidus), °C 1070
1380
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 55
14
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 9.0
2.9
Embodied Energy, MJ/kg 130
40
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
18
Strength to Weight: Bending, points 17
18
Thermal Shock Resistance, points 15
12

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 0.080
Chromium (Cr), % 18.5 to 19.5
16 to 18
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 0 to 0.5
66.9 to 75.5
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 70.1 to 73.5
7.0 to 9.0
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 0.030
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0