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ASTM A182 Grade F23 vs. AWS BNi-8

ASTM A182 grade F23 belongs to the iron alloys classification, while AWS BNi-8 belongs to the nickel 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 ASTM A182 grade F23 and the bottom bar is AWS BNi-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
67
Tensile Strength: Ultimate (UTS), MPa 570
570

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Melting Completion (Liquidus), °C 1500
1010
Melting Onset (Solidus), °C 1450
980
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
46
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.5
8.2
Embodied Energy, MJ/kg 36
120
Embodied Water, L/kg 59
220

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
19
Thermal Shock Resistance, points 17
17

Alloy Composition

Aluminum (Al), % 0 to 0.030
0 to 0.050
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.040 to 0.1
0 to 0.060
Chromium (Cr), % 1.9 to 2.6
0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 93.2 to 96.2
0
Manganese (Mn), % 0.1 to 0.6
21.5 to 24.5
Molybdenum (Mo), % 0.050 to 0.3
0
Nickel (Ni), % 0 to 0.4
61.6 to 68.5
Niobium (Nb), % 0.020 to 0.080
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.5
6.0 to 8.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.0050 to 0.060
0 to 0.050
Tungsten (W), % 1.5 to 1.8
0
Vanadium (V), % 0.2 to 0.3
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5