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AWS BNi-2 vs. SAE-AISI M6 Steel

AWS BNi-2 belongs to the nickel alloys classification, while SAE-AISI M6 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-2 and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 68
77
Tensile Strength: Ultimate (UTS), MPa 440
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 360
260
Melting Completion (Liquidus), °C 1000
1560
Melting Onset (Solidus), °C 970
1510
Specific Heat Capacity, J/kg-K 490
440
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 55
39
Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 9.3
8.0
Embodied Energy, MJ/kg 130
120
Embodied Water, L/kg 230
160

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 15
28 to 73
Strength to Weight: Bending, points 16
24 to 45
Thermal Shock Resistance, points 16
26 to 68

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0.75 to 0.85
Chromium (Cr), % 6.0 to 8.0
3.8 to 4.5
Cobalt (Co), % 0 to 0.1
11 to 13
Iron (Fe), % 2.5 to 3.5
68.8 to 74.6
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 79.1 to 84.8
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0.2 to 0.45
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0