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SAE-AISI 1065 Steel vs. SAE-AISI 50B46 Steel

Both SAE-AISI 1065 steel and SAE-AISI 50B46 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1065 steel and the bottom bar is SAE-AISI 50B46 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 230
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
21
Fatigue Strength, MPa 270 to 340
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 430 to 470
340
Tensile Strength: Ultimate (UTS), MPa 710 to 780
540
Tensile Strength: Yield (Proof), MPa 430 to 550
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 51
47
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 46
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 90
99
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 820
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
19
Strength to Weight: Bending, points 23 to 24
19
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 25 to 27
16

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.6 to 0.7
0.44 to 0.49
Chromium (Cr), % 0
0.2 to 0.35
Iron (Fe), % 98.3 to 98.8
97.7 to 98.5
Manganese (Mn), % 0.6 to 0.9
0.75 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040