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ASTM A369 Grade FP9 vs. AWS BAg-2a

ASTM A369 grade FP9 belongs to the iron alloys classification, while AWS BAg-2a belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP9 and the bottom bar is AWS BAg-2a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
83
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
31
Tensile Strength: Ultimate (UTS), MPa 470
170

Thermal Properties

Latent Heat of Fusion, J/g 270
130
Melting Completion (Liquidus), °C 1450
710
Melting Onset (Solidus), °C 1410
610
Specific Heat Capacity, J/kg-K 480
310
Thermal Expansion, µm/m-K 13
23

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.0
30
Embodied Energy, MJ/kg 28
470

Common Calculations

Stiffness to Weight: Axial, points 14
5.2
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 17
5.4
Strength to Weight: Bending, points 17
7.8
Thermal Shock Resistance, points 13
6.5

Alloy Composition

Cadmium (Cd), % 0
19 to 21
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 8.0 to 10
0
Copper (Cu), % 0
26 to 28
Iron (Fe), % 87.1 to 90.3
0
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.5 to 1.0
0
Silver (Ag), % 0
29 to 31
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
21 to 25
Residuals, % 0
0 to 0.15