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ASTM A182 Grade F5 vs. ASTM A369 Grade FP91

Both ASTM A182 grade F5 and ASTM A369 grade FP91 are iron alloys. They have a very high 95% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F5 and the bottom bar is ASTM A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
19
Fatigue Strength, MPa 220
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75
Shear Strength, MPa 340
410
Tensile Strength: Ultimate (UTS), MPa 540
670
Tensile Strength: Yield (Proof), MPa 310
460

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 510
600
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
10

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
2.6
Embodied Energy, MJ/kg 24
37
Embodied Water, L/kg 69
88

Common Calculations

PREN (Pitting Resistance) 6.8
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 260
560
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 11
6.9
Thermal Shock Resistance, points 15
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Carbon (C), % 0 to 0.15
0.080 to 0.12
Chromium (Cr), % 4.0 to 6.0
8.0 to 9.5
Iron (Fe), % 91.5 to 95.3
87.3 to 90.3
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0.85 to 1.1
Nickel (Ni), % 0 to 0.5
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0.2 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010