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ASTM A369 Grade FP91 vs. R04295 Alloy

ASTM A369 grade FP91 belongs to the iron alloys classification, while R04295 alloy belongs to the otherwise unclassified metals. There are 18 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 ASTM A369 grade FP91 and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 19
22
Poisson's Ratio 0.28
0.38
Shear Modulus, GPa 75
37
Tensile Strength: Ultimate (UTS), MPa 670
410
Tensile Strength: Yield (Proof), MPa 460
300

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Specific Heat Capacity, J/kg-K 470
260
Thermal Expansion, µm/m-K 13
7.2

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.0
Embodied Water, L/kg 88
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
84
Resilience: Unit (Modulus of Resilience), kJ/m3 560
430
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 24
13
Strength to Weight: Bending, points 22
14
Thermal Shock Resistance, points 18
40

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.015
Chromium (Cr), % 8.0 to 9.5
0
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 87.3 to 90.3
0
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
85.9 to 90.3
Nitrogen (N), % 0.030 to 0.070
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.2 to 0.5
0
Sulfur (S), % 0 to 0.025
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.010
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0 to 0.7