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SAE-AISI 1065 Steel vs. S44660 Stainless Steel

Both SAE-AISI 1065 steel and S44660 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1065 steel and the bottom bar is S44660 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 230
210
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11 to 14
20
Fatigue Strength, MPa 270 to 340
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
81
Shear Strength, MPa 430 to 470
410
Tensile Strength: Ultimate (UTS), MPa 710 to 780
660
Tensile Strength: Yield (Proof), MPa 430 to 550
510

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
21
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
4.3
Embodied Energy, MJ/kg 19
61
Embodied Water, L/kg 46
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 90
120
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 820
640
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
24
Strength to Weight: Bending, points 23 to 24
22
Thermal Diffusivity, mm2/s 14
4.5
Thermal Shock Resistance, points 25 to 27
21

Alloy Composition

Carbon (C), % 0.6 to 0.7
0 to 0.030
Chromium (Cr), % 0
25 to 28
Iron (Fe), % 98.3 to 98.8
60.4 to 71
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
1.0 to 3.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0