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ASTM A182 Grade F2 vs. SAE-AISI 8645 Steel

Both ASTM A182 grade F2 and SAE-AISI 8645 steel are iron alloys. They have a very high 99% 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 F2 and the bottom bar is SAE-AISI 8645 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
12 to 23
Fatigue Strength, MPa 220
280 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
380 to 400
Tensile Strength: Ultimate (UTS), MPa 550
600 to 670
Tensile Strength: Yield (Proof), MPa 310
390 to 560

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
410
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 46
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 50
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
77 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 250
420 to 840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
21 to 24
Strength to Weight: Bending, points 19
20 to 22
Thermal Diffusivity, mm2/s 12
10
Thermal Shock Resistance, points 16
18 to 20

Alloy Composition

Carbon (C), % 0.050 to 0.21
0.43 to 0.48
Chromium (Cr), % 0.5 to 0.81
0.4 to 0.6
Iron (Fe), % 96.9 to 98.6
96.5 to 97.7
Manganese (Mn), % 0.3 to 0.8
0.75 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.1 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.040