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SAE-AISI 5140 Steel vs. ASTM A182 Grade F23

Both SAE-AISI 5140 steel and ASTM A182 grade F23 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 SAE-AISI 5140 steel and the bottom bar is ASTM A182 grade F23.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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