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AWS BNi-7 vs. S46910 Stainless Steel

AWS BNi-7 belongs to the nickel alloys classification, while S46910 stainless steel belongs to the iron alloys. They have a modest 21% 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 (12, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 67
76
Tensile Strength: Ultimate (UTS), MPa 550
680 to 2470

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 890
1460
Melting Onset (Solidus), °C 890
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 55
18
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 8.8
4.1
Embodied Energy, MJ/kg 120
55
Embodied Water, L/kg 240
140

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 19
24 to 86
Strength to Weight: Bending, points 19
22 to 51
Thermal Shock Resistance, points 21
23 to 84

Alloy Composition

Aluminum (Al), % 0 to 0.050
0.15 to 0.5
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 13 to 15
11 to 13
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 0 to 0.2
65 to 76
Manganese (Mn), % 0 to 0.040
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 73.3 to 77.3
8.0 to 10
Phosphorus (P), % 9.7 to 10.5
0 to 0.030
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0 to 0.050
0.5 to 1.2
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0