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ASTM A182 Grade F23 vs. SAE-AISI 5140 Steel

Both ASTM A182 grade F23 and SAE-AISI 5140 steel are iron alloys. They have a very high 96% 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 F23 and the bottom bar is SAE-AISI 5140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
12 to 29
Fatigue Strength, MPa 320
220 to 570
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 360
360 to 600
Tensile Strength: Ultimate (UTS), MPa 570
560 to 970
Tensile Strength: Yield (Proof), MPa 460
290 to 840

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
420
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 36
19
Embodied Water, L/kg 59
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
76 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 550
220 to 1880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
20 to 34
Strength to Weight: Bending, points 19
19 to 28
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 17
16 to 29

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.040 to 0.1
0.38 to 0.43
Chromium (Cr), % 1.9 to 2.6
0.7 to 0.9
Iron (Fe), % 93.2 to 96.2
97.3 to 98.1
Manganese (Mn), % 0.1 to 0.6
0.7 to 0.9
Molybdenum (Mo), % 0.050 to 0.3
0
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.020 to 0.080
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0.0050 to 0.060
0
Tungsten (W), % 1.5 to 1.8
0
Vanadium (V), % 0.2 to 0.3
0