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ASTM A182 Grade F36 vs. SAE-AISI 4145 Steel

Both ASTM A182 grade F36 and SAE-AISI 4145 steel are iron alloys. They have a very high 98% 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 F36 and the bottom bar is SAE-AISI 4145 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
16
Fatigue Strength, MPa 330
240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 440
360
Tensile Strength: Ultimate (UTS), MPa 710
580
Tensile Strength: Yield (Proof), MPa 490
360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
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 39
42
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 22
20
Embodied Water, L/kg 53
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80
Resilience: Unit (Modulus of Resilience), kJ/m3 650
350
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 21
17

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0.1 to 0.17
0.43 to 0.48
Chromium (Cr), % 0 to 0.3
0.8 to 1.1
Copper (Cu), % 0.5 to 0.8
0
Iron (Fe), % 95 to 97.1
96.7 to 97.7
Manganese (Mn), % 0.8 to 1.2
0.75 to 1.0
Molybdenum (Mo), % 0.25 to 0.5
0.15 to 0.25
Nickel (Ni), % 1.0 to 1.3
0
Niobium (Nb), % 0.015 to 0.045
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.25 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040
Vanadium (V), % 0 to 0.020
0