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SAE-AISI 4320 Steel vs. ASTM A182 Grade F5

Both SAE-AISI 4320 steel and ASTM A182 grade F5 are iron alloys. They have a very high 95% 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 SAE-AISI 4320 steel and the bottom bar is ASTM A182 grade F5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 240
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 29
22
Fatigue Strength, MPa 320
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 370 to 500
340
Tensile Strength: Ultimate (UTS), MPa 570 to 790
540
Tensile Strength: Yield (Proof), MPa 430 to 460
310

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
510
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
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
4.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 22
24
Embodied Water, L/kg 52
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
100
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 560
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 28
19
Strength to Weight: Bending, points 19 to 24
19
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 19 to 27
15

Alloy Composition

Carbon (C), % 0.17 to 0.22
0 to 0.15
Chromium (Cr), % 0.4 to 0.6
4.0 to 6.0
Iron (Fe), % 95.8 to 97
91.5 to 95.3
Manganese (Mn), % 0.45 to 0.65
0.3 to 0.6
Molybdenum (Mo), % 0.2 to 0.3
0.44 to 0.65
Nickel (Ni), % 1.7 to 2.0
0 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030