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ASTM A182 Grade F122 vs. ASTM A369 Grade FPA

Both ASTM A182 grade F122 and ASTM A369 grade FPA are iron alloys. They have 85% 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 F122 and the bottom bar is ASTM A369 grade FPA.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
110
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
27
Fatigue Strength, MPa 320
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 450
240
Tensile Strength: Ultimate (UTS), MPa 710
380
Tensile Strength: Yield (Proof), MPa 450
240

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
400
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1440
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 44
18
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
89
Resilience: Unit (Modulus of Resilience), kJ/m3 520
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
13
Strength to Weight: Bending, points 22
15
Thermal Diffusivity, mm2/s 6.4
14
Thermal Shock Resistance, points 19
12

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0.070 to 0.14
0 to 0.25
Chromium (Cr), % 10 to 11.5
0
Copper (Cu), % 0.3 to 1.7
0
Iron (Fe), % 81.3 to 87.7
98.3 to 99.63
Manganese (Mn), % 0 to 0.7
0.27 to 0.93
Molybdenum (Mo), % 0.25 to 0.6
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.040 to 0.1
0
Nitrogen (N), % 0.040 to 0.1
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.5
0.1 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.035
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.5
0
Vanadium (V), % 0.15 to 0.3
0
Zirconium (Zr), % 0 to 0.010
0