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AWS BNi-7 vs. AISI 201 Stainless Steel

AWS BNi-7 belongs to the nickel alloys classification, while AISI 201 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is AISI 201 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
77
Tensile Strength: Ultimate (UTS), MPa 550
650 to 1450

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 890
1410
Melting Onset (Solidus), °C 890
1370
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 55
12
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 8.8
2.6
Embodied Energy, MJ/kg 120
38
Embodied Water, L/kg 240
140

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 19
23 to 52
Strength to Weight: Bending, points 19
22 to 37
Thermal Shock Resistance, points 21
14 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 13 to 15
16 to 18
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
67.5 to 75
Manganese (Mn), % 0 to 0.040
5.5 to 7.5
Nickel (Ni), % 73.3 to 77.3
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 9.7 to 10.5
0 to 0.060
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
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