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SAE-AISI 1046 Steel vs. S64512 Stainless Steel

Both SAE-AISI 1046 steel and S64512 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1046 steel and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 210
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 17
17
Fatigue Strength, MPa 240 to 390
540
Poisson's Ratio 0.29
0.28
Reduction in Area, % 39 to 50
34
Shear Modulus, GPa 72
76
Shear Strength, MPa 410 to 450
700
Tensile Strength: Ultimate (UTS), MPa 660 to 740
1140
Tensile Strength: Yield (Proof), MPa 370 to 610
890

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
750
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
28
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18
47
Embodied Water, L/kg 46
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 95
180
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 990
2020
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
40
Strength to Weight: Bending, points 22 to 23
31
Thermal Diffusivity, mm2/s 14
7.5
Thermal Shock Resistance, points 23 to 25
42

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.080 to 0.15
Chromium (Cr), % 0
11 to 12.5
Iron (Fe), % 98.4 to 98.9
80.6 to 84.7
Manganese (Mn), % 0.7 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
2.0 to 3.0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.025
Vanadium (V), % 0
0.25 to 0.4