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ASTM A182 Grade F5a vs. ASTM A369 Grade FPB

Both ASTM A182 grade F5a and ASTM A369 grade FPB are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F5a and the bottom bar is ASTM A369 grade FPB.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
19
Fatigue Strength, MPa 380
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 450
290
Tensile Strength: Ultimate (UTS), MPa 710
470
Tensile Strength: Yield (Proof), MPa 520
270

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
400
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
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24
18
Embodied Water, L/kg 69
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
78
Resilience: Unit (Modulus of Resilience), kJ/m3 700
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.3
Chromium (Cr), % 4.0 to 6.0
0
Iron (Fe), % 91.4 to 95.6
98.1 to 99.61
Manganese (Mn), % 0 to 0.6
0.29 to 1.1
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.5
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.035