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AWS BNi-9 vs. ASTM A372 Grade F Steel

AWS BNi-9 belongs to the nickel alloys classification, while ASTM A372 grade F steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-9 and the bottom bar is ASTM A372 grade F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 580
650 to 910

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1060
1460
Melting Onset (Solidus), °C 1060
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
2.4
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.3
1.5
Embodied Energy, MJ/kg 130
20
Embodied Water, L/kg 260
51

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 19
23 to 32
Strength to Weight: Bending, points 18
21 to 27
Thermal Shock Resistance, points 19
19 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 3.3 to 4.0
0
Carbon (C), % 0 to 0.060
0.3 to 0.4
Chromium (Cr), % 13.5 to 16.5
0.8 to 1.2
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 1.5
96.8 to 97.9
Manganese (Mn), % 0
0.7 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 77.1 to 83.3
0
Phosphorus (P), % 0 to 0.020
0 to 0.015
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0