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AWS BNi-7 vs. ACI-ASTM CA6N Steel

AWS BNi-7 belongs to the nickel alloys classification, while ACI-ASTM CA6N steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
190
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 67
75
Tensile Strength: Ultimate (UTS), MPa 550
1080

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 890
1440
Melting Onset (Solidus), °C 890
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 11
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 55
11
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 8.8
2.5
Embodied Energy, MJ/kg 120
35
Embodied Water, L/kg 240
110

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 19
38
Strength to Weight: Bending, points 19
30
Thermal Shock Resistance, points 21
40

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 13 to 15
10.5 to 12.5
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
77.9 to 83.5
Manganese (Mn), % 0 to 0.040
0 to 0.5
Nickel (Ni), % 73.3 to 77.3
6.0 to 8.0
Phosphorus (P), % 9.7 to 10.5
0 to 0.020
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 0.020
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0